./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3a877d22 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_test22_2-2.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 beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:03:49,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:03:49,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:03:49,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:03:49,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:03:49,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:03:49,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:03:49,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:03:49,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:03:49,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:03:49,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:03:49,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:03:49,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:03:49,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:03:49,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:03:49,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:03:49,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:03:49,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:03:49,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:03:49,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:03:49,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:03:49,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:03:49,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:03:49,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:03:49,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:03:49,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:03:49,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:03:49,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:03:49,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:03:49,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:03:49,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:03:49,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:03:49,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:03:49,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:03:49,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:03:49,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:03:49,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:03:49,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:03:49,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:03:49,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:03:49,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:03:49,888 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:03:49,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:03:49,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:03:49,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:03:49,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:03:49,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:03:49,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:03:49,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:03:49,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:03:49,915 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:03:49,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:03:49,916 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:03:49,916 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:03:49,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:03:49,916 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:03:49,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:03:49,916 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:03:49,917 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:03:49,917 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:03:49,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:03:49,917 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:03:49,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:03:49,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:03:49,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:03:49,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:03:49,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:03:49,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:03:49,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:03:49,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:03:49,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:03:49,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:03:49,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:03:49,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d [2021-12-15 14:03:50,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:03:50,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:03:50,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:03:50,142 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:03:50,142 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:03:50,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2021-12-15 14:03:50,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48bb33c61/2783e29074584a79a8be212a94ad9360/FLAG0049164d0 [2021-12-15 14:03:50,598 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:03:50,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2021-12-15 14:03:50,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48bb33c61/2783e29074584a79a8be212a94ad9360/FLAG0049164d0 [2021-12-15 14:03:50,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48bb33c61/2783e29074584a79a8be212a94ad9360 [2021-12-15 14:03:50,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:03:50,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:03:50,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:03:50,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:03:50,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:03:50,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:03:50" (1/1) ... [2021-12-15 14:03:50,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3abcf954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:50, skipping insertion in model container [2021-12-15 14:03:50,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:03:50" (1/1) ... [2021-12-15 14:03:50,630 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:03:50,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:03:50,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:03:50,959 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) [2021-12-15 14:03:50,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4738258a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:50, skipping insertion in model container [2021-12-15 14:03:50,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:03:50,960 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-12-15 14:03:50,962 INFO L158 Benchmark]: Toolchain (without parser) took 340.21ms. Allocated memory is still 127.9MB. Free memory was 94.4MB in the beginning and 99.6MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:03:50,963 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 77.6MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:03:50,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.27ms. Allocated memory is still 127.9MB. Free memory was 94.4MB in the beginning and 99.6MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 14:03:50,965 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 77.6MB. Free memory was 38.1MB in the beginning and 38.1MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.27ms. Allocated memory is still 127.9MB. Free memory was 94.4MB in the beginning and 99.6MB in the end (delta: -5.2MB). Peak memory consumption was 8.4MB. 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_test22_2-2.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 beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:03:52,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:03:52,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:03:52,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:03:52,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:03:52,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:03:52,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:03:52,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:03:52,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:03:52,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:03:52,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:03:52,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:03:52,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:03:52,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:03:52,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:03:52,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:03:52,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:03:52,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:03:52,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:03:52,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:03:52,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:03:52,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:03:52,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:03:52,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:03:52,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:03:52,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:03:52,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:03:52,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:03:52,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:03:52,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:03:52,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:03:52,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:03:52,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:03:52,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:03:52,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:03:52,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:03:52,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:03:52,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:03:52,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:03:52,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:03:52,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:03:52,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:03:52,540 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:03:52,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:03:52,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:03:52,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:03:52,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:03:52,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:03:52,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:03:52,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:03:52,544 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:03:52,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:03:52,544 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:03:52,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:03:52,545 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:03:52,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:03:52,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:03:52,545 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:03:52,545 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:03:52,545 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:03:52,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:03:52,553 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:03:52,553 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:03:52,553 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:03:52,554 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:03:52,554 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:03:52,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:03:52,554 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:03:52,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:03:52,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:03:52,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:03:52,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:03:52,555 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:03:52,555 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:03:52,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:03:52,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:03:52,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> beb004be26a355c223f1a45515f5377c37b18fc46f09e77727f89b964ae9789d [2021-12-15 14:03:52,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:03:52,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:03:52,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:03:52,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:03:52,818 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:03:52,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2021-12-15 14:03:52,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4a91ad7/b38771fd74204c558d2fbcfeb534b5e6/FLAGdfbe24e30 [2021-12-15 14:03:53,255 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:03:53,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_2-2.i [2021-12-15 14:03:53,265 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4a91ad7/b38771fd74204c558d2fbcfeb534b5e6/FLAGdfbe24e30 [2021-12-15 14:03:53,275 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4a91ad7/b38771fd74204c558d2fbcfeb534b5e6 [2021-12-15 14:03:53,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:03:53,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:03:53,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:03:53,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:03:53,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:03:53,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77448aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53, skipping insertion in model container [2021-12-15 14:03:53,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:03:53,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:03:53,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:03:53,630 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 14:03:53,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:03:53,695 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:03:53,703 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:03:53,745 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:03:53,777 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:03:53,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53 WrapperNode [2021-12-15 14:03:53,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:03:53,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:03:53,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:03:53,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:03:53,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,840 INFO L137 Inliner]: procedures = 165, calls = 71, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 120 [2021-12-15 14:03:53,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:03:53,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:03:53,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:03:53,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:03:53,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:03:53,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:03:53,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:03:53,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:03:53,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (1/1) ... [2021-12-15 14:03:53,896 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:03:53,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:03:53,912 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) [2021-12-15 14:03:53,920 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 [2021-12-15 14:03:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 14:03:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-12-15 14:03:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-12-15 14:03:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-15 14:03:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-15 14:03:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-12-15 14:03:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-12-15 14:03:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 14:03:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:03:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 14:03:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 14:03:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 14:03:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 14:03:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 14:03:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:03:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:03:54,034 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:03:54,035 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:03:54,291 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 14:03:54,296 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 14:03:54,296 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 14:03:54,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:03:54 BoogieIcfgContainer [2021-12-15 14:03:54,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 14:03:54,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 14:03:54,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 14:03:54,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 14:03:54,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 02:03:53" (1/3) ... [2021-12-15 14:03:54,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b527d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:03:54, skipping insertion in model container [2021-12-15 14:03:54,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:03:53" (2/3) ... [2021-12-15 14:03:54,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b527d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:03:54, skipping insertion in model container [2021-12-15 14:03:54,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:03:54" (3/3) ... [2021-12-15 14:03:54,303 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test22_2-2.i [2021-12-15 14:03:54,307 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 14:03:54,307 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2021-12-15 14:03:54,336 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 14:03:54,342 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 [2021-12-15 14:03:54,343 INFO L340 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2021-12-15 14:03:54,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 57 states have (on average 1.5964912280701755) internal successors, (91), 83 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 14:03:54,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 14:03:54,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:03:54,381 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:03:54,381 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATION (and 22 more)] === [2021-12-15 14:03:54,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:03:54,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1790059245, now seen corresponding path program 1 times [2021-12-15 14:03:54,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:03:54,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [950679399] [2021-12-15 14:03:54,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:03:54,395 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:03:54,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:03:54,397 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) [2021-12-15 14:03:54,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 14:03:54,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 14:03:54,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:03:54,654 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:03:54,657 INFO L158 Benchmark]: Toolchain (without parser) took 1379.20ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.9MB in the beginning and 39.9MB in the end (delta: -10.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2021-12-15 14:03:54,657 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:03:54,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.10ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.8MB in the beginning and 45.5MB in the end (delta: -15.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-12-15 14:03:54,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.48ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 42.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 14:03:54,659 INFO L158 Benchmark]: Boogie Preprocessor took 47.10ms. Allocated memory is still 67.1MB. Free memory was 42.7MB in the beginning and 40.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 14:03:54,659 INFO L158 Benchmark]: RCFGBuilder took 407.70ms. Allocated memory is still 67.1MB. Free memory was 40.6MB in the beginning and 35.8MB in the end (delta: 4.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-12-15 14:03:54,659 INFO L158 Benchmark]: TraceAbstraction took 357.07ms. Allocated memory is still 67.1MB. Free memory was 35.4MB in the beginning and 39.9MB in the end (delta: -4.6MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2021-12-15 14:03:54,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 38.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.10ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.8MB in the beginning and 45.5MB in the end (delta: -15.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.48ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 42.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.10ms. Allocated memory is still 67.1MB. Free memory was 42.7MB in the beginning and 40.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.70ms. Allocated memory is still 67.1MB. Free memory was 40.6MB in the beginning and 35.8MB in the end (delta: 4.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 357.07ms. Allocated memory is still 67.1MB. Free memory was 35.4MB in the beginning and 39.9MB in the end (delta: -4.6MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 14:03:54,689 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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable