./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 00:10:39,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 00:10:39,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 00:10:39,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 00:10:39,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 00:10:39,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 00:10:39,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 00:10:39,900 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 00:10:39,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 00:10:39,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 00:10:39,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 00:10:39,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 00:10:39,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 00:10:39,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 00:10:39,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 00:10:39,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 00:10:39,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 00:10:39,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 00:10:39,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 00:10:39,917 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 00:10:39,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 00:10:39,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 00:10:39,920 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 00:10:39,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 00:10:39,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 00:10:39,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 00:10:39,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 00:10:39,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 00:10:39,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 00:10:39,928 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 00:10:39,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 00:10:39,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 00:10:39,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 00:10:39,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 00:10:39,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 00:10:39,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 00:10:39,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 00:10:39,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 00:10:39,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 00:10:39,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 00:10:39,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 00:10:39,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-22 00:10:39,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 00:10:39,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 00:10:39,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 00:10:39,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 00:10:39,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 00:10:39,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 00:10:39,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 00:10:39,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 00:10:39,954 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 00:10:39,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 00:10:39,955 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 00:10:39,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 00:10:39,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 00:10:39,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 00:10:39,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 00:10:39,956 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-22 00:10:39,956 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-22 00:10:39,956 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-22 00:10:39,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 00:10:39,956 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-22 00:10:39,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 00:10:39,957 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 00:10:39,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 00:10:39,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 00:10:39,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 00:10:39,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 00:10:39,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 00:10:39,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 00:10:39,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 00:10:39,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 00:10:39,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 00:10:39,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed1b4c32fb34a3b94710a14cca3ab0a8326ba7fa7dcd01a325fa2ad8637f2b6 [2021-12-22 00:10:40,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 00:10:40,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 00:10:40,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 00:10:40,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 00:10:40,188 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 00:10:40,189 INFO L432 ainManager$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 00:10:40,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cafd258f/d0daf8a6a59c42a5b2b0029b8cb43ce0/FLAGe2ba18f93 [2021-12-22 00:10:40,632 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 00:10:40,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test5_2.i [2021-12-22 00:10:40,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cafd258f/d0daf8a6a59c42a5b2b0029b8cb43ce0/FLAGe2ba18f93 [2021-12-22 00:10:40,981 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cafd258f/d0daf8a6a59c42a5b2b0029b8cb43ce0 [2021-12-22 00:10:40,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 00:10:40,985 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 00:10:40,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 00:10:40,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 00:10:40,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 00:10:40,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:10:40" (1/1) ... [2021-12-22 00:10:41,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ddce625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:41, skipping insertion in model container [2021-12-22 00:10:41,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:10:40" (1/1) ... [2021-12-22 00:10:41,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 00:10:41,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 00:10:41,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 00:10:41,297 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 00:10:41,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24cc0f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:41, skipping insertion in model container [2021-12-22 00:10:41,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 00:10:41,298 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-22 00:10:41,299 INFO L158 Benchmark]: Toolchain (without parser) took 314.27ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 39.6MB in the beginning and 67.4MB in the end (delta: -27.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2021-12-22 00:10:41,300 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 81.8MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 00:10:41,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.03ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 39.4MB in the beginning and 67.4MB in the end (delta: -28.0MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2021-12-22 00:10:41,301 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 81.8MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.03ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 39.4MB in the beginning and 67.4MB in the end (delta: -28.0MB). Peak memory consumption was 7.0MB. 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 00:10:42,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 00:10:42,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 00:10:42,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 00:10:43,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 00:10:43,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 00:10:43,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 00:10:43,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 00:10:43,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 00:10:43,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 00:10:43,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 00:10:43,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 00:10:43,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 00:10:43,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 00:10:43,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 00:10:43,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 00:10:43,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 00:10:43,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 00:10:43,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 00:10:43,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 00:10:43,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 00:10:43,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 00:10:43,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 00:10:43,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 00:10:43,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 00:10:43,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 00:10:43,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 00:10:43,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 00:10:43,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 00:10:43,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 00:10:43,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 00:10:43,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 00:10:43,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 00:10:43,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 00:10:43,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 00:10:43,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 00:10:43,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 00:10:43,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 00:10:43,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 00:10:43,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 00:10:43,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 00:10:43,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-22 00:10:43,091 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 00:10:43,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 00:10:43,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 00:10:43,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 00:10:43,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 00:10:43,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 00:10:43,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 00:10:43,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 00:10:43,095 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 00:10:43,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 00:10:43,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 00:10:43,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-22 00:10:43,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 00:10:43,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 00:10:43,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 00:10:43,097 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-22 00:10:43,097 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-22 00:10:43,098 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-22 00:10:43,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 00:10:43,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-22 00:10:43,098 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-22 00:10:43,098 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-22 00:10:43,098 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 00:10:43,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 00:10:43,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 00:10:43,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 00:10:43,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 00:10:43,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 00:10:43,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 00:10:43,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 00:10:43,100 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-22 00:10:43,100 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-22 00:10:43,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 00:10:43,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-22 00:10:43,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ed1b4c32fb34a3b94710a14cca3ab0a8326ba7fa7dcd01a325fa2ad8637f2b6 [2021-12-22 00:10:43,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 00:10:43,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 00:10:43,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 00:10:43,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 00:10:43,394 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 00:10:43,395 INFO L432 ainManager$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 00:10:43,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7dcf852d/5d38b57942eb4d6482c004db8f093cd6/FLAGef30426f8 [2021-12-22 00:10:43,844 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 00:10:43,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test5_2.i [2021-12-22 00:10:43,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7dcf852d/5d38b57942eb4d6482c004db8f093cd6/FLAGef30426f8 [2021-12-22 00:10:44,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7dcf852d/5d38b57942eb4d6482c004db8f093cd6 [2021-12-22 00:10:44,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 00:10:44,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 00:10:44,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 00:10:44,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 00:10:44,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 00:10:44,185 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7b6486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44, skipping insertion in model container [2021-12-22 00:10:44,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 00:10:44,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 00:10:44,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 00:10:44,559 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-22 00:10:44,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 00:10:44,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 00:10:44,623 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 00:10:44,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 00:10:44,698 INFO L208 MainTranslator]: Completed translation [2021-12-22 00:10:44,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44 WrapperNode [2021-12-22 00:10:44,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 00:10:44,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 00:10:44,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 00:10:44,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 00:10:44,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,759 INFO L137 Inliner]: procedures = 167, calls = 71, calls flagged for inlining = 23, calls inlined = 5, statements flattened = 26 [2021-12-22 00:10:44,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 00:10:44,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 00:10:44,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 00:10:44,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 00:10:44,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 00:10:44,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 00:10:44,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 00:10:44,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 00:10:44,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (1/1) ... [2021-12-22 00:10:44,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 00:10:44,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 00:10:44,822 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 00:10:44,840 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 00:10:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 00:10:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 00:10:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 00:10:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 00:10:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 00:10:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 00:10:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 00:10:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 00:10:44,920 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 00:10:44,921 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 00:10:45,039 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 00:10:45,043 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 00:10:45,044 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 00:10:45,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:10:45 BoogieIcfgContainer [2021-12-22 00:10:45,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 00:10:45,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 00:10:45,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 00:10:45,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 00:10:45,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:10:44" (1/3) ... [2021-12-22 00:10:45,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4999f6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:10:45, skipping insertion in model container [2021-12-22 00:10:45,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:10:44" (2/3) ... [2021-12-22 00:10:45,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4999f6d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:10:45, skipping insertion in model container [2021-12-22 00:10:45,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:10:45" (3/3) ... [2021-12-22 00:10:45,065 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test5_2.i [2021-12-22 00:10:45,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 00:10:45,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-22 00:10:45,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 00:10:45,103 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 00:10:45,104 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-22 00:10:45,120 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 00:10:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-22 00:10:45,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 00:10:45,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 00:10:45,125 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 00:10:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 00:10:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1492643359, now seen corresponding path program 1 times [2021-12-22 00:10:45,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 00:10:45,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762740109] [2021-12-22 00:10:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 00:10:45,143 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 00:10:45,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 00:10:45,145 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 00:10:45,146 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 00:10:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 00:10:45,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-22 00:10:45,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 00:10:45,324 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 00:10:45,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 00:10:45,325 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-22 00:10:45,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762740109] [2021-12-22 00:10:45,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [762740109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 00:10:45,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 00:10:45,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 00:10:45,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284051794] [2021-12-22 00:10:45,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 00:10:45,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 00:10:45,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-22 00:10:45,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 00:10:45,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 00:10:45,346 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 00:10:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 00:10:45,367 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-22 00:10:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-22 00:10:45,368 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 00:10:45,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 00:10:45,372 INFO L225 Difference]: With dead ends: 16 [2021-12-22 00:10:45,372 INFO L226 Difference]: Without dead ends: 14 [2021-12-22 00:10:45,373 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 00:10:45,375 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 00:10:45,376 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 00:10:45,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-12-22 00:10:45,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-12-22 00:10:45,392 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 00:10:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-12-22 00:10:45,393 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2021-12-22 00:10:45,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 00:10:45,393 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-12-22 00:10:45,393 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 00:10:45,393 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-12-22 00:10:45,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-22 00:10:45,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 00:10:45,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 00:10:45,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-22 00:10:45,600 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 00:10:45,601 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 00:10:45,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 00:10:45,602 INFO L85 PathProgramCache]: Analyzing trace with hash -88561022, now seen corresponding path program 1 times [2021-12-22 00:10:45,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-22 00:10:45,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1408005413] [2021-12-22 00:10:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 00:10:45,603 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-22 00:10:45,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-22 00:10:45,605 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 00:10:45,606 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 00:10:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 00:10:45,686 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-22 00:10:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-22 00:10:45,720 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-22 00:10:45,720 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-22 00:10:45,722 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2021-12-22 00:10:45,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2021-12-22 00:10:45,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2021-12-22 00:10:45,723 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (0 of 4 remaining) [2021-12-22 00:10:45,736 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 00:10:45,936 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 00:10:45,938 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-22 00:10:45,940 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-22 00:10:45,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 12:10:45 BoogieIcfgContainer [2021-12-22 00:10:45,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-22 00:10:45,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-22 00:10:45,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-22 00:10:45,954 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-22 00:10:45,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:10:45" (3/4) ... [2021-12-22 00:10:45,957 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-22 00:10:45,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-22 00:10:45,957 INFO L158 Benchmark]: Toolchain (without parser) took 1779.35ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 40.6MB in the beginning and 51.4MB in the end (delta: -10.8MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-12-22 00:10:45,958 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 00:10:45,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.55ms. Allocated memory is still 60.8MB. Free memory was 40.4MB in the beginning and 26.5MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-22 00:10:45,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.34ms. Allocated memory is still 88.1MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-22 00:10:45,959 INFO L158 Benchmark]: Boogie Preprocessor took 34.94ms. Allocated memory is still 88.1MB. Free memory was 69.3MB in the beginning and 68.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 00:10:45,959 INFO L158 Benchmark]: RCFGBuilder took 249.53ms. Allocated memory is still 88.1MB. Free memory was 68.2MB in the beginning and 58.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-22 00:10:45,960 INFO L158 Benchmark]: TraceAbstraction took 907.17ms. Allocated memory is still 88.1MB. Free memory was 57.2MB in the beginning and 51.8MB in the end (delta: 5.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-12-22 00:10:45,960 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 88.1MB. Free memory was 51.8MB in the beginning and 51.4MB in the end (delta: 439.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-22 00:10:45,962 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 60.8MB. Free memory was 43.3MB in the beginning and 43.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.55ms. Allocated memory is still 60.8MB. Free memory was 40.4MB in the beginning and 26.5MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.34ms. Allocated memory is still 88.1MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.94ms. Allocated memory is still 88.1MB. Free memory was 69.3MB in the beginning and 68.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.53ms. Allocated memory is still 88.1MB. Free memory was 68.2MB in the beginning and 58.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 907.17ms. Allocated memory is still 88.1MB. Free memory was 57.2MB in the beginning and 51.8MB in the end (delta: 5.4MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 88.1MB. Free memory was 51.8MB in the beginning and 51.4MB in the end (delta: 439.9kB). 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, 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 00:10:45,988 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