./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/test-0158-2.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/memsafety/test-0158-2.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 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 20:23:46,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 20:23:46,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 20:23:46,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 20:23:46,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 20:23:46,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 20:23:46,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 20:23:46,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 20:23:46,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 20:23:46,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 20:23:46,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 20:23:46,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 20:23:46,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 20:23:46,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 20:23:46,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 20:23:46,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 20:23:46,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 20:23:46,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 20:23:46,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 20:23:46,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 20:23:46,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 20:23:46,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 20:23:46,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 20:23:46,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 20:23:46,106 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 20:23:46,107 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 20:23:46,107 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 20:23:46,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 20:23:46,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 20:23:46,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 20:23:46,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 20:23:46,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 20:23:46,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 20:23:46,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 20:23:46,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 20:23:46,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 20:23:46,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 20:23:46,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 20:23:46,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 20:23:46,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 20:23:46,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 20:23:46,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-02-18 20:23:46,143 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 20:23:46,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 20:23:46,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 20:23:46,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 20:23:46,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 20:23:46,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 20:23:46,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 20:23:46,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 20:23:46,145 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 20:23:46,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 20:23:46,146 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 20:23:46,146 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 20:23:46,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 20:23:46,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 20:23:46,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 20:23:46,146 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 20:23:46,146 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 20:23:46,147 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 20:23:46,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 20:23:46,147 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 20:23:46,147 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 20:23:46,147 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 20:23:46,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 20:23:46,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 20:23:46,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 20:23:46,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 20:23:46,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 20:23:46,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 20:23:46,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 20:23:46,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 20:23:46,148 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 20:23:46,149 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 20:23:46,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 20:23:46,149 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 20:23:46,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2023-02-18 20:23:46,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 20:23:46,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 20:23:46,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 20:23:46,333 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 20:23:46,333 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 20:23:46,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-2.i [2023-02-18 20:23:47,482 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 20:23:47,686 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 20:23:47,687 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-2.i [2023-02-18 20:23:47,694 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f3dfea1/6a85fb833bc94069a98fe3156a153db0/FLAGeda16c2f0 [2023-02-18 20:23:47,704 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f3dfea1/6a85fb833bc94069a98fe3156a153db0 [2023-02-18 20:23:47,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 20:23:47,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 20:23:47,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 20:23:47,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 20:23:47,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 20:23:47,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a782c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47, skipping insertion in model container [2023-02-18 20:23:47,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 20:23:47,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 20:23:47,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 20:23:47,884 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 20:23:47,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 20:23:47,923 INFO L208 MainTranslator]: Completed translation [2023-02-18 20:23:47,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47 WrapperNode [2023-02-18 20:23:47,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 20:23:47,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 20:23:47,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 20:23:47,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 20:23:47,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,949 INFO L138 Inliner]: procedures = 123, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-18 20:23:47,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 20:23:47,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 20:23:47,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 20:23:47,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 20:23:47,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,974 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 20:23:47,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 20:23:47,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 20:23:47,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 20:23:47,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (1/1) ... [2023-02-18 20:23:47,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 20:23:48,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 20:23:48,010 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) [2023-02-18 20:23:48,023 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 [2023-02-18 20:23:48,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-18 20:23:48,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 20:23:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 20:23:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 20:23:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-18 20:23:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 20:23:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 20:23:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 20:23:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 20:23:48,111 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 20:23:48,112 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 20:23:48,191 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 20:23:48,200 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 20:23:48,201 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 20:23:48,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:23:48 BoogieIcfgContainer [2023-02-18 20:23:48,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 20:23:48,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 20:23:48,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 20:23:48,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 20:23:48,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:23:47" (1/3) ... [2023-02-18 20:23:48,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301dd10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:23:48, skipping insertion in model container [2023-02-18 20:23:48,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:47" (2/3) ... [2023-02-18 20:23:48,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301dd10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:23:48, skipping insertion in model container [2023-02-18 20:23:48,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:23:48" (3/3) ... [2023-02-18 20:23:48,209 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2023-02-18 20:23:48,222 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 20:23:48,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-02-18 20:23:48,262 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 20:23:48,267 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;@815aacd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 20:23:48,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-02-18 20:23:48,272 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 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) [2023-02-18 20:23:48,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-18 20:23:48,276 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:23:48,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-18 20:23:48,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-02-18 20:23:48,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:23:48,282 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2023-02-18 20:23:48,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:23:48,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64528119] [2023-02-18 20:23:48,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:23:48,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:23:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:23:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:23:48,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:23:48,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64528119] [2023-02-18 20:23:48,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64528119] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:23:48,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:23:48,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 20:23:48,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777462468] [2023-02-18 20:23:48,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:23:48,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:23:48,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:23:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:23:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:23:48,540 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 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) 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) [2023-02-18 20:23:48,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:23:48,567 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2023-02-18 20:23:48,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:23:48,570 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 [2023-02-18 20:23:48,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:23:48,574 INFO L225 Difference]: With dead ends: 14 [2023-02-18 20:23:48,574 INFO L226 Difference]: Without dead ends: 12 [2023-02-18 20:23:48,576 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 [2023-02-18 20:23:48,578 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 20:23:48,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 20:23:48,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-02-18 20:23:48,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-18 20:23:48,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2023-02-18 20:23:48,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-02-18 20:23:48,597 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2023-02-18 20:23:48,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:23:48,597 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-02-18 20:23:48,598 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) [2023-02-18 20:23:48,598 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-02-18 20:23:48,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-18 20:23:48,598 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:23:48,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-18 20:23:48,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 20:23:48,599 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-02-18 20:23:48,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:23:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-18 20:23:48,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:23:48,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337643409] [2023-02-18 20:23:48,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:23:48,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:23:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:23:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:23:48,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 20:23:48,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337643409] [2023-02-18 20:23:48,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337643409] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:23:48,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:23:48,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 20:23:48,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305167916] [2023-02-18 20:23:48,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:23:48,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:23:48,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 20:23:48,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:23:48,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:23:48,752 INFO L87 Difference]: Start difference. First operand 12 states and 11 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) [2023-02-18 20:23:48,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:23:48,780 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2023-02-18 20:23:48,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:23:48,780 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 [2023-02-18 20:23:48,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:23:48,781 INFO L225 Difference]: With dead ends: 9 [2023-02-18 20:23:48,781 INFO L226 Difference]: Without dead ends: 9 [2023-02-18 20:23:48,781 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 [2023-02-18 20:23:48,782 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 20:23:48,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 20:23:48,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-18 20:23:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-18 20:23:48,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-02-18 20:23:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2023-02-18 20:23:48,784 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 3 [2023-02-18 20:23:48,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:23:48,785 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2023-02-18 20:23:48,785 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) [2023-02-18 20:23:48,785 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-02-18 20:23:48,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 20:23:48,785 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:23:48,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:23:48,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 20:23:48,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-02-18 20:23:48,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:23:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash 59200043, now seen corresponding path program 1 times [2023-02-18 20:23:48,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 20:23:48,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336104636] [2023-02-18 20:23:48,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:23:48,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 20:23:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 20:23:48,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 20:23:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 20:23:48,827 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 20:23:48,828 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-18 20:23:48,828 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-02-18 20:23:48,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-02-18 20:23:48,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-02-18 20:23:48,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-02-18 20:23:48,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-02-18 20:23:48,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2023-02-18 20:23:48,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 7 remaining) [2023-02-18 20:23:48,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 20:23:48,833 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-02-18 20:23:48,835 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 20:23:48,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 08:23:48 BoogieIcfgContainer [2023-02-18 20:23:48,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 20:23:48,845 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 20:23:48,845 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 20:23:48,846 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 20:23:48,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:23:48" (3/4) ... [2023-02-18 20:23:48,848 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 20:23:48,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 20:23:48,848 INFO L158 Benchmark]: Toolchain (without parser) took 1141.88ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 121.0MB in the beginning and 151.6MB in the end (delta: -30.6MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-02-18 20:23:48,849 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 163.6MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 20:23:48,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.46ms. Allocated memory is still 163.6MB. Free memory was 120.5MB in the beginning and 104.8MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-02-18 20:23:48,850 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.05ms. Allocated memory is still 163.6MB. Free memory was 104.8MB in the beginning and 102.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 20:23:48,850 INFO L158 Benchmark]: Boogie Preprocessor took 26.46ms. Allocated memory is still 163.6MB. Free memory was 102.7MB in the beginning and 101.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 20:23:48,850 INFO L158 Benchmark]: RCFGBuilder took 226.35ms. Allocated memory is still 163.6MB. Free memory was 101.6MB in the beginning and 91.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 20:23:48,851 INFO L158 Benchmark]: TraceAbstraction took 640.69ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 90.1MB in the beginning and 151.6MB in the end (delta: -61.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 20:23:48,851 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 197.1MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 20:23:48,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 163.6MB. Free memory is still 106.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.46ms. Allocated memory is still 163.6MB. Free memory was 120.5MB in the beginning and 104.8MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.05ms. Allocated memory is still 163.6MB. Free memory was 104.8MB in the beginning and 102.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.46ms. Allocated memory is still 163.6MB. Free memory was 102.7MB in the beginning and 101.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 226.35ms. Allocated memory is still 163.6MB. Free memory was 101.6MB in the beginning and 91.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 640.69ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 90.1MB in the beginning and 151.6MB in the end (delta: -61.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 197.1MB. Free memory is still 151.6MB. 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: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={3:0}, malloc(37U)={-1:0}] [L534] data.str.p2 = &data VAL [data={3:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={3:0}] [L536] return 0; [L536] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 10 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-02-18 20:23:48,883 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/memsafety/test-0158-2.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 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 20:23:50,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 20:23:50,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 20:23:50,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 20:23:50,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 20:23:50,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 20:23:50,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 20:23:50,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 20:23:50,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 20:23:50,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 20:23:50,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 20:23:50,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 20:23:50,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 20:23:50,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 20:23:50,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 20:23:50,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 20:23:50,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 20:23:50,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 20:23:50,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 20:23:50,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 20:23:50,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 20:23:50,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 20:23:50,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 20:23:50,926 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 20:23:50,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 20:23:50,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 20:23:50,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 20:23:50,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 20:23:50,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 20:23:50,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 20:23:50,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 20:23:50,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 20:23:50,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 20:23:50,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 20:23:50,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 20:23:50,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 20:23:50,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 20:23:50,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 20:23:50,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 20:23:50,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 20:23:50,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 20:23:50,938 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-02-18 20:23:50,962 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 20:23:50,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 20:23:50,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 20:23:50,963 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 20:23:50,964 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 20:23:50,964 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 20:23:50,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 20:23:50,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 20:23:50,965 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 20:23:50,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 20:23:50,966 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 20:23:50,966 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 20:23:50,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 20:23:50,966 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 20:23:50,966 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 20:23:50,966 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-02-18 20:23:50,967 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2023-02-18 20:23:50,967 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-02-18 20:23:50,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 20:23:50,967 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 20:23:50,967 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-18 20:23:50,967 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-18 20:23:50,967 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 20:23:50,968 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 20:23:50,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 20:23:50,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 20:23:50,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 20:23:50,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 20:23:50,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 20:23:50,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 20:23:50,969 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-18 20:23:50,969 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-18 20:23:50,969 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 20:23:50,969 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 20:23:50,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 20:23:50,970 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-18 20:23:50,970 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 20:23:50,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71b5f65f2f8d87850f90a0c5b95ff806d4054a596ed67d86f7cc490935279607 [2023-02-18 20:23:51,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 20:23:51,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 20:23:51,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 20:23:51,230 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 20:23:51,230 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 20:23:51,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-2.i [2023-02-18 20:23:52,296 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 20:23:52,566 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 20:23:52,569 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-2.i [2023-02-18 20:23:52,577 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948265ed6/d151019e262448a98ff0fc87e060d8c0/FLAGdf5164a85 [2023-02-18 20:23:52,587 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948265ed6/d151019e262448a98ff0fc87e060d8c0 [2023-02-18 20:23:52,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 20:23:52,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 20:23:52,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 20:23:52,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 20:23:52,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 20:23:52,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:52,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4ed98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52, skipping insertion in model container [2023-02-18 20:23:52,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:52,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 20:23:52,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 20:23:52,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 20:23:52,829 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 20:23:52,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 20:23:52,935 INFO L208 MainTranslator]: Completed translation [2023-02-18 20:23:52,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52 WrapperNode [2023-02-18 20:23:52,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 20:23:52,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 20:23:52,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 20:23:52,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 20:23:52,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:52,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:52,992 INFO L138 Inliner]: procedures = 124, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-02-18 20:23:52,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 20:23:52,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 20:23:52,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 20:23:52,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 20:23:53,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 20:23:53,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 20:23:53,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 20:23:53,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 20:23:53,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (1/1) ... [2023-02-18 20:23:53,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 20:23:53,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 20:23:53,054 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) [2023-02-18 20:23:53,072 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 [2023-02-18 20:23:53,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-18 20:23:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 20:23:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-18 20:23:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-18 20:23:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-02-18 20:23:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 20:23:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-18 20:23:53,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 20:23:53,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 20:23:53,201 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 20:23:53,202 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 20:23:53,299 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 20:23:53,303 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 20:23:53,303 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 20:23:53,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:23:53 BoogieIcfgContainer [2023-02-18 20:23:53,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 20:23:53,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 20:23:53,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 20:23:53,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 20:23:53,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:23:52" (1/3) ... [2023-02-18 20:23:53,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d0592f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:23:53, skipping insertion in model container [2023-02-18 20:23:53,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:23:52" (2/3) ... [2023-02-18 20:23:53,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d0592f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:23:53, skipping insertion in model container [2023-02-18 20:23:53,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:23:53" (3/3) ... [2023-02-18 20:23:53,310 INFO L112 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2023-02-18 20:23:53,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 20:23:53,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-02-18 20:23:53,346 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 20:23:53,357 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;@6c790f82, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 20:23:53,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-02-18 20:23:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 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) [2023-02-18 20:23:53,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-18 20:23:53,363 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:23:53,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-18 20:23:53,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-02-18 20:23:53,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:23:53,369 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2023-02-18 20:23:53,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 20:23:53,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197591705] [2023-02-18 20:23:53,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:23:53,378 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 [2023-02-18 20:23:53,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 20:23:53,383 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) [2023-02-18 20:23:53,384 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 [2023-02-18 20:23:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:23:53,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 20:23:53,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 20:23:53,502 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 20:23:53,503 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 [2023-02-18 20:23:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:23:53,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 20:23:53,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 20:23:53,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197591705] [2023-02-18 20:23:53,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197591705] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:23:53,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:23:53,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 20:23:53,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686904340] [2023-02-18 20:23:53,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:23:53,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:23:53,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 20:23:53,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:23:53,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:23:53,574 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 16 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) 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) [2023-02-18 20:23:53,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:23:53,620 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2023-02-18 20:23:53,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:23:53,623 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 [2023-02-18 20:23:53,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:23:53,627 INFO L225 Difference]: With dead ends: 14 [2023-02-18 20:23:53,627 INFO L226 Difference]: Without dead ends: 12 [2023-02-18 20:23:53,628 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 [2023-02-18 20:23:53,633 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 20:23:53,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 20:23:53,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-02-18 20:23:53,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-18 20:23:53,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2023-02-18 20:23:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-02-18 20:23:53,653 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 3 [2023-02-18 20:23:53,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:23:53,653 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-02-18 20:23:53,653 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) [2023-02-18 20:23:53,653 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-02-18 20:23:53,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-02-18 20:23:53,654 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:23:53,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-02-18 20:23:53,673 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 [2023-02-18 20:23:53,861 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 [2023-02-18 20:23:53,862 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-02-18 20:23:53,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:23:53,862 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-18 20:23:53,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 20:23:53,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113233741] [2023-02-18 20:23:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:23:53,864 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 [2023-02-18 20:23:53,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 20:23:53,865 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) [2023-02-18 20:23:53,868 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 [2023-02-18 20:23:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 20:23:53,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 20:23:53,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 20:23:53,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 20:23:53,931 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 [2023-02-18 20:23:53,935 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 [2023-02-18 20:23:53,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 20:23:53,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 20:23:53,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 20:23:53,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113233741] [2023-02-18 20:23:53,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113233741] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 20:23:53,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 20:23:53,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 20:23:53,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015430345] [2023-02-18 20:23:53,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 20:23:53,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 20:23:53,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 20:23:53,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 20:23:53,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 20:23:53,941 INFO L87 Difference]: Start difference. First operand 12 states and 11 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) [2023-02-18 20:23:53,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 20:23:53,960 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2023-02-18 20:23:53,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 20:23:53,960 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 [2023-02-18 20:23:53,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 20:23:53,961 INFO L225 Difference]: With dead ends: 9 [2023-02-18 20:23:53,961 INFO L226 Difference]: Without dead ends: 9 [2023-02-18 20:23:53,961 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 [2023-02-18 20:23:53,962 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 20:23:53,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 20:23:53,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-18 20:23:53,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-18 20:23:53,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-02-18 20:23:53,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2023-02-18 20:23:53,964 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 3 [2023-02-18 20:23:53,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 20:23:53,964 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2023-02-18 20:23:53,964 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) [2023-02-18 20:23:53,965 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2023-02-18 20:23:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 20:23:53,965 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 20:23:53,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 20:23:53,980 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 [2023-02-18 20:23:54,171 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 [2023-02-18 20:23:54,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 4 more)] === [2023-02-18 20:23:54,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 20:23:54,173 INFO L85 PathProgramCache]: Analyzing trace with hash 59200043, now seen corresponding path program 1 times [2023-02-18 20:23:54,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 20:23:54,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248094006] [2023-02-18 20:23:54,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 20:23:54,174 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 [2023-02-18 20:23:54,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 20:23:54,175 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) [2023-02-18 20:23:54,196 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 [2023-02-18 20:23:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 20:23:54,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 20:23:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 20:23:54,264 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-02-18 20:23:54,264 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-18 20:23:54,265 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2023-02-18 20:23:54,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 7 remaining) [2023-02-18 20:23:54,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 7 remaining) [2023-02-18 20:23:54,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 7 remaining) [2023-02-18 20:23:54,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 7 remaining) [2023-02-18 20:23:54,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 7 remaining) [2023-02-18 20:23:54,267 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 7 remaining) [2023-02-18 20:23:54,276 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 [2023-02-18 20:23:54,467 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 [2023-02-18 20:23:54,470 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-02-18 20:23:54,473 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 20:23:54,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 08:23:54 BoogieIcfgContainer [2023-02-18 20:23:54,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 20:23:54,494 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 20:23:54,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 20:23:54,495 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 20:23:54,495 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:23:53" (3/4) ... [2023-02-18 20:23:54,497 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 20:23:54,497 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 20:23:54,498 INFO L158 Benchmark]: Toolchain (without parser) took 1907.99ms. Allocated memory is still 69.2MB. Free memory was 45.3MB in the beginning and 33.3MB in the end (delta: 12.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2023-02-18 20:23:54,501 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 20:23:54,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.01ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 46.4MB in the end (delta: -1.2MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-02-18 20:23:54,504 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.84ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 20:23:54,505 INFO L158 Benchmark]: Boogie Preprocessor took 32.01ms. Allocated memory is still 69.2MB. Free memory was 44.3MB in the beginning and 43.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 20:23:54,506 INFO L158 Benchmark]: RCFGBuilder took 279.17ms. Allocated memory is still 69.2MB. Free memory was 43.1MB in the beginning and 32.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 20:23:54,507 INFO L158 Benchmark]: TraceAbstraction took 1188.20ms. Allocated memory is still 69.2MB. Free memory was 31.7MB in the beginning and 33.7MB in the end (delta: -2.0MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2023-02-18 20:23:54,508 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 69.2MB. Free memory was 33.7MB in the beginning and 33.3MB in the end (delta: 348.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 20:23:54,509 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.01ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 46.4MB in the end (delta: -1.2MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.84ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.01ms. Allocated memory is still 69.2MB. Free memory was 44.3MB in the beginning and 43.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 279.17ms. Allocated memory is still 69.2MB. Free memory was 43.1MB in the beginning and 32.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1188.20ms. Allocated memory is still 69.2MB. Free memory was 31.7MB in the beginning and 33.7MB in the end (delta: -2.0MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 69.2MB. Free memory was 33.7MB in the beginning and 33.3MB in the end (delta: 348.5kB). 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: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) VAL [data={7:0}, malloc(37U)={3:0}] [L534] data.str.p2 = &data VAL [data={7:0}] [L535] data.str.c[1] = sizeof data.str.p1 VAL [data={7:0}] [L536] return 0; [L536] 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 10 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 1 QuantifiedInterpolants, 47 SizeOfPredicates, 2 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2023-02-18 20:23:54,529 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