./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test5_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e19ca921 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/ldv-memsafety/memleaks_test5_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 2ed1b4c32fb34a3b94710a14cca3ab0a8326ba7fa7dcd01a325fa2ad8637f2b6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 16:38:31,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 16:38:31,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 16:38:31,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 16:38:31,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 16:38:31,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 16:38:31,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 16:38:31,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 16:38:31,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 16:38:31,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 16:38:31,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 16:38:31,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 16:38:31,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 16:38:31,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 16:38:31,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 16:38:31,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 16:38:31,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 16:38:31,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 16:38:31,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 16:38:31,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 16:38:31,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 16:38:31,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 16:38:31,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 16:38:31,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 16:38:31,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 16:38:31,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 16:38:31,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 16:38:31,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 16:38:31,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 16:38:31,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 16:38:31,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 16:38:31,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 16:38:31,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 16:38:31,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 16:38:31,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 16:38:31,365 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 16:38:31,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 16:38:31,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 16:38:31,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 16:38:31,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 16:38:31,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 16:38:31,369 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-22 16:38:31,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 16:38:31,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 16:38:31,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 16:38:31,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 16:38:31,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 16:38:31,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 16:38:31,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 16:38:31,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 16:38:31,402 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 16:38:31,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 16:38:31,403 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 16:38:31,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 16:38:31,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 16:38:31,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 16:38:31,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 16:38:31,404 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-22 16:38:31,404 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-22 16:38:31,404 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-22 16:38:31,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 16:38:31,405 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-22 16:38:31,405 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 16:38:31,405 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 16:38:31,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 16:38:31,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 16:38:31,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 16:38:31,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 16:38:31,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 16:38:31,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 16:38:31,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 16:38:31,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 16:38:31,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 16:38:31,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed1b4c32fb34a3b94710a14cca3ab0a8326ba7fa7dcd01a325fa2ad8637f2b6 [2021-12-22 16:38:31,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 16:38:31,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 16:38:31,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 16:38:31,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 16:38:31,699 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 16:38:31,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test5_2.i [2021-12-22 16:38:31,771 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22f7346b/e0e30df2d76148d38c530bd371ea834e/FLAGa257566c0 [2021-12-22 16:38:32,169 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 16:38:32,170 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test5_2.i [2021-12-22 16:38:32,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22f7346b/e0e30df2d76148d38c530bd371ea834e/FLAGa257566c0 [2021-12-22 16:38:32,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d22f7346b/e0e30df2d76148d38c530bd371ea834e [2021-12-22 16:38:32,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 16:38:32,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 16:38:32,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 16:38:32,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 16:38:32,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 16:38:32,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:38:32" (1/1) ... [2021-12-22 16:38:32,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2435c6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:32, skipping insertion in model container [2021-12-22 16:38:32,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:38:32" (1/1) ... [2021-12-22 16:38:32,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 16:38:32,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 16:38:32,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 16:38:32,932 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-12-22 16:38:32,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b76efb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:32, skipping insertion in model container [2021-12-22 16:38:32,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 16:38:32,933 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-22 16:38:32,935 INFO L158 Benchmark]: Toolchain (without parser) took 396.75ms. Allocated memory is still 88.1MB. Free memory was 54.4MB in the beginning and 60.4MB in the end (delta: -6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 16:38:32,935 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 88.1MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 16:38:32,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.71ms. Allocated memory is still 88.1MB. Free memory was 54.3MB in the beginning and 60.4MB in the end (delta: -6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-22 16:38:32,937 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 88.1MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.71ms. Allocated memory is still 88.1MB. Free memory was 54.3MB in the beginning and 60.4MB in the end (delta: -6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/ldv-memsafety/memleaks_test5_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 2ed1b4c32fb34a3b94710a14cca3ab0a8326ba7fa7dcd01a325fa2ad8637f2b6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 16:38:34,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 16:38:34,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 16:38:34,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 16:38:34,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 16:38:34,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 16:38:34,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 16:38:34,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 16:38:34,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 16:38:34,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 16:38:34,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 16:38:34,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 16:38:34,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 16:38:34,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 16:38:34,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 16:38:34,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 16:38:34,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 16:38:34,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 16:38:34,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 16:38:34,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 16:38:34,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 16:38:34,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 16:38:34,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 16:38:34,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 16:38:34,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 16:38:34,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 16:38:34,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 16:38:34,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 16:38:34,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 16:38:34,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 16:38:34,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 16:38:34,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 16:38:34,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 16:38:34,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 16:38:34,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 16:38:34,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 16:38:34,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 16:38:34,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 16:38:34,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 16:38:34,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 16:38:34,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 16:38:34,878 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-22 16:38:34,906 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 16:38:34,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 16:38:34,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 16:38:34,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 16:38:34,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 16:38:34,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 16:38:34,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 16:38:34,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 16:38:34,909 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 16:38:34,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 16:38:34,909 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 16:38:34,909 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 16:38:34,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 16:38:34,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 16:38:34,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 16:38:34,910 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-22 16:38:34,910 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-22 16:38:34,910 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-22 16:38:34,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 16:38:34,911 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-22 16:38:34,911 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-22 16:38:34,911 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-22 16:38:34,911 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 16:38:34,911 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 16:38:34,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 16:38:34,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 16:38:34,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 16:38:34,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 16:38:34,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 16:38:34,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 16:38:34,913 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-22 16:38:34,913 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-22 16:38:34,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 16:38:34,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-22 16:38:34,914 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed1b4c32fb34a3b94710a14cca3ab0a8326ba7fa7dcd01a325fa2ad8637f2b6 [2021-12-22 16:38:35,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 16:38:35,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 16:38:35,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 16:38:35,223 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 16:38:35,224 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 16:38:35,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test5_2.i [2021-12-22 16:38:35,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad1ea4f5/cd57cfa5050d463da0edcbaa5abad7d4/FLAGbadd78b4b [2021-12-22 16:38:35,760 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 16:38:35,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test5_2.i [2021-12-22 16:38:35,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad1ea4f5/cd57cfa5050d463da0edcbaa5abad7d4/FLAGbadd78b4b [2021-12-22 16:38:36,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ad1ea4f5/cd57cfa5050d463da0edcbaa5abad7d4 [2021-12-22 16:38:36,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 16:38:36,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 16:38:36,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 16:38:36,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 16:38:36,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 16:38:36,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bac0570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36, skipping insertion in model container [2021-12-22 16:38:36,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 16:38:36,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 16:38:36,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 16:38:36,546 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-22 16:38:36,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 16:38:36,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 16:38:36,627 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 16:38:36,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 16:38:36,737 INFO L208 MainTranslator]: Completed translation [2021-12-22 16:38:36,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36 WrapperNode [2021-12-22 16:38:36,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 16:38:36,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 16:38:36,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 16:38:36,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 16:38:36,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,775 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,794 INFO L137 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 26 [2021-12-22 16:38:36,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 16:38:36,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 16:38:36,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 16:38:36,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 16:38:36,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 16:38:36,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 16:38:36,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 16:38:36,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 16:38:36,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (1/1) ... [2021-12-22 16:38:36,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 16:38:36,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 16:38:36,863 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) [2021-12-22 16:38:36,913 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 [2021-12-22 16:38:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 16:38:36,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 16:38:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 16:38:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 16:38:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 16:38:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 16:38:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 16:38:36,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 16:38:37,038 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 16:38:37,041 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 16:38:37,191 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 16:38:37,206 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 16:38:37,209 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 16:38:37,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:38:37 BoogieIcfgContainer [2021-12-22 16:38:37,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 16:38:37,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 16:38:37,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 16:38:37,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 16:38:37,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:38:36" (1/3) ... [2021-12-22 16:38:37,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792d787b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:38:37, skipping insertion in model container [2021-12-22 16:38:37,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:38:36" (2/3) ... [2021-12-22 16:38:37,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792d787b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:38:37, skipping insertion in model container [2021-12-22 16:38:37,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:38:37" (3/3) ... [2021-12-22 16:38:37,231 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test5_2.i [2021-12-22 16:38:37,236 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 16:38:37,236 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-22 16:38:37,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 16:38:37,296 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 16:38:37,296 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-22 16:38:37,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 16:38:37,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-22 16:38:37,326 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:38:37,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:38:37,328 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-22 16:38:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:38:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1492643359, now seen corresponding path program 1 times [2021-12-22 16:38:37,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 16:38:37,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108340012] [2021-12-22 16:38:37,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:38:37,342 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 16:38:37,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 16:38:37,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-22 16:38:37,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-22 16:38:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:38:37,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-22 16:38:37,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 16:38:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 16:38:37,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 16:38:37,524 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-22 16:38:37,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108340012] [2021-12-22 16:38:37,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108340012] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:38:37,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 16:38:37,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 16:38:37,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980551113] [2021-12-22 16:38:37,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:38:37,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 16:38:37,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-22 16:38:37,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 16:38:37,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 16:38:37,563 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 16:38:37,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 16:38:37,588 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-22 16:38:37,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 16:38:37,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-12-22 16:38:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 16:38:37,596 INFO L225 Difference]: With dead ends: 16 [2021-12-22 16:38:37,596 INFO L226 Difference]: Without dead ends: 14 [2021-12-22 16:38:37,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 16:38:37,600 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 16:38:37,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 30 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 16:38:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-22 16:38:37,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-22 16:38:37,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 16:38:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-12-22 16:38:37,624 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2021-12-22 16:38:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 16:38:37,625 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-12-22 16:38:37,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 16:38:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-12-22 16:38:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-22 16:38:37,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:38:37,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:38:37,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-22 16:38:37,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-22 16:38:37,834 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2021-12-22 16:38:37,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:38:37,835 INFO L85 PathProgramCache]: Analyzing trace with hash -88561022, now seen corresponding path program 1 times [2021-12-22 16:38:37,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 16:38:37,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315375613] [2021-12-22 16:38:37,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:38:37,836 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 16:38:37,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 16:38:37,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-22 16:38:37,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-22 16:38:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 16:38:37,894 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 16:38:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 16:38:37,930 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-22 16:38:37,930 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-22 16:38:37,932 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2021-12-22 16:38:37,934 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2021-12-22 16:38:37,935 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2021-12-22 16:38:37,935 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (0 of 4 remaining) [2021-12-22 16:38:37,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-22 16:38:38,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-22 16:38:38,147 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-22 16:38:38,149 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 16:38:38,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:38:38 BoogieIcfgContainer [2021-12-22 16:38:38,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 16:38:38,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 16:38:38,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 16:38:38,179 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 16:38:38,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:38:37" (3/4) ... [2021-12-22 16:38:38,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 16:38:38,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 16:38:38,182 INFO L158 Benchmark]: Toolchain (without parser) took 2088.40ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 35.2MB in the beginning and 43.7MB in the end (delta: -8.5MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2021-12-22 16:38:38,183 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.2MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 16:38:38,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 642.56ms. Allocated memory is still 62.9MB. Free memory was 35.1MB in the beginning and 43.3MB in the end (delta: -8.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2021-12-22 16:38:38,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.50ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 41.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 16:38:38,184 INFO L158 Benchmark]: Boogie Preprocessor took 22.48ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 39.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 16:38:38,184 INFO L158 Benchmark]: RCFGBuilder took 407.59ms. Allocated memory is still 62.9MB. Free memory was 39.7MB in the beginning and 29.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-22 16:38:38,184 INFO L158 Benchmark]: TraceAbstraction took 951.53ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 29.0MB in the beginning and 44.2MB in the end (delta: -15.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2021-12-22 16:38:38,185 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 88.1MB. Free memory was 44.2MB in the beginning and 43.7MB in the end (delta: 488.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 16:38:38,186 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.2MB in the end (delta: 50.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 642.56ms. Allocated memory is still 62.9MB. Free memory was 35.1MB in the beginning and 43.3MB in the end (delta: -8.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.50ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 41.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.48ms. Allocated memory is still 62.9MB. Free memory was 41.0MB in the beginning and 39.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.59ms. Allocated memory is still 62.9MB. Free memory was 39.7MB in the beginning and 29.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 951.53ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 29.0MB in the beginning and 44.2MB in the end (delta: -15.2MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 88.1MB. Free memory was 44.2MB in the beginning and 43.7MB in the end (delta: 488.0kB). 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: 770]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 770. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [ldv_global_msg_list={1:0}] [L771] CALL entry_point() [L767] CALL, EXPR f5() [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={1:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={1:0}, ldv_malloc(sizeof(int))={2:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] return 0; VAL [\result={0:0}, ldv_global_msg_list={1:0}, p={2:0}] [L767] RET, EXPR f5() [L767] int *p = f5(); [L768] CALL g5(p) [L762] COND FALSE !(\read(*p)) VAL [ldv_global_msg_list={1:0}, p={0:0}, p={0:0}] [L768] RET g5(p) [L771] RET entry_point() - UnprovableResult [Line: 763]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 763]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 6 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2021-12-22 16:38:38,224 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