./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer --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 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 .................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer --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 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:49,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:49,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:49,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:49,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:49,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:49,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:49,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:49,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:49,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:49,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:49,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:49,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:49,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:49,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:49,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:49,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:49,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:49,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:49,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:49,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:49,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:49,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:49,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:49,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:49,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:49,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:49,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:49,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:49,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:49,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:49,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:49,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:49,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:49,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:49,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:49,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:49,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:49,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:49,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:49,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:49,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 02:57:49,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:49,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:49,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:49,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:49,883 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:49,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:49,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:49,884 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:49,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:49,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:49,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:49,885 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 02:57:49,885 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 02:57:49,885 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 02:57:49,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:57:49,886 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 02:57:49,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:49,886 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:49,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:49,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:49,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:57:49,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:57:49,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:49,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:49,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:57:49,887 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:49,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:57:49,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:49,888 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:/tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-11-28 02:57:50,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:50,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:50,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:50,158 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:50,159 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:50,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-11-28 02:57:50,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data/47523976f/4b41663992e140d9a5da398435ead2b0/FLAG3d006ceea [2020-11-28 02:57:50,845 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:50,846 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-11-28 02:57:50,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data/47523976f/4b41663992e140d9a5da398435ead2b0/FLAG3d006ceea [2020-11-28 02:57:51,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data/47523976f/4b41663992e140d9a5da398435ead2b0 [2020-11-28 02:57:51,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:51,113 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 02:57:51,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:51,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:51,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d96b625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51, skipping insertion in model container [2020-11-28 02:57:51,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:51" (1/1) ... [2020-11-28 02:57:51,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:51,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:51,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:51,489 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) [2020-11-28 02:57:51,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d07fdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:51, skipping insertion in model container [2020-11-28 02:57:51,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:51,491 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-11-28 02:57:51,493 INFO L168 Benchmark]: Toolchain (without parser) took 378.64 ms. Allocated memory is still 83.9 MB. Free memory was 52.0 MB in the beginning and 61.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:51,494 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 67.1 MB. Free memory was 29.5 MB in the beginning and 29.4 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:51,495 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.48 ms. Allocated memory is still 83.9 MB. Free memory was 51.8 MB in the beginning and 61.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:51,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 67.1 MB. Free memory was 29.5 MB in the beginning and 29.4 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 374.48 ms. Allocated memory is still 83.9 MB. Free memory was 51.8 MB in the beginning and 61.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:53,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:53,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:53,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:53,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:53,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:53,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:53,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:53,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:53,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:53,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:53,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:53,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:53,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:53,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:53,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:53,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:53,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:53,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:53,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:53,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:53,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:53,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:53,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:53,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:53,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:53,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:53,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:53,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:53,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:53,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:53,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:53,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:53,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:53,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:53,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:53,883 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:53,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:53,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:53,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:53,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:53,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-28 02:57:53,939 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:53,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:53,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:53,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:53,944 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:53,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:53,945 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:57:53,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:53,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:53,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:57:53,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:53,947 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 02:57:53,947 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 02:57:53,947 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 02:57:53,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:57:53,948 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 02:57:53,948 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 02:57:53,948 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 02:57:53,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:57:53,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:53,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:53,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:53,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:57:53,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:57:53,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:53,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:53,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:57:53,951 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 02:57:53,951 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 02:57:53,951 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:53,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 02:57:53,951 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:/tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-11-28 02:57:54,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:54,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:54,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:54,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:54,427 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:54,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-11-28 02:57:54,515 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data/3e203b6a4/88f56f75a1454045b9431fae50960197/FLAG214695eee [2020-11-28 02:57:55,159 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:55,160 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-11-28 02:57:55,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data/3e203b6a4/88f56f75a1454045b9431fae50960197/FLAG214695eee [2020-11-28 02:57:55,464 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/data/3e203b6a4/88f56f75a1454045b9431fae50960197 [2020-11-28 02:57:55,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:55,473 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 02:57:55,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:55,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:55,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:55,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:55" (1/1) ... [2020-11-28 02:57:55,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166454b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:55, skipping insertion in model container [2020-11-28 02:57:55,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:55" (1/1) ... [2020-11-28 02:57:55,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:55,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:55,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:55,883 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-28 02:57:55,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:55,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:55,955 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:55,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:56,043 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:56,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56 WrapperNode [2020-11-28 02:57:56,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:56,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:56,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:56,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:56,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (1/1) ... [2020-11-28 02:57:56,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (1/1) ... [2020-11-28 02:57:56,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (1/1) ... [2020-11-28 02:57:56,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (1/1) ... [2020-11-28 02:57:56,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (1/1) ... [2020-11-28 02:57:56,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (1/1) ... [2020-11-28 02:57:56,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (1/1) ... [2020-11-28 02:57:56,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:56,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:56,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:56,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:56,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:56,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 02:57:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 02:57:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 02:57:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 02:57:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 02:57:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 02:57:56,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 02:57:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure lis [2020-11-28 02:57:56,204 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 02:57:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 02:57:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 02:57:56,204 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 02:57:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 02:57:56,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 02:57:56,207 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 02:57:56,208 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 02:57:56,209 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 02:57:56,210 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 02:57:56,210 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 02:57:56,210 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 02:57:56,210 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 02:57:56,210 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 02:57:56,210 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 02:57:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 02:57:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 02:57:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 02:57:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 02:57:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 02:57:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 02:57:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 02:57:56,211 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 02:57:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 02:57:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 02:57:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 02:57:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 02:57:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 02:57:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 02:57:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 02:57:56,212 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 02:57:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 02:57:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 02:57:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 02:57:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 02:57:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 02:57:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 02:57:56,213 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 02:57:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 02:57:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 02:57:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 02:57:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 02:57:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 02:57:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 02:57:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 02:57:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 02:57:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 02:57:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 02:57:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 02:57:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 02:57:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 02:57:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 02:57:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 02:57:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 02:57:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 02:57:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 02:57:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 02:57:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 02:57:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 02:57:56,216 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 02:57:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 02:57:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 02:57:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 02:57:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 02:57:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 02:57:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 02:57:56,217 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 02:57:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 02:57:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 02:57:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 02:57:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 02:57:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 02:57:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 02:57:56,218 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 02:57:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 02:57:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure lis [2020-11-28 02:57:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 02:57:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 02:57:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 02:57:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:57:56,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 02:57:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 02:57:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:56,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 02:57:57,262 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:57,263 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 02:57:57,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:57 BoogieIcfgContainer [2020-11-28 02:57:57,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:57,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:57:57,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:57:57,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:57:57,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:57:55" (1/3) ... [2020-11-28 02:57:57,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69841db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:57, skipping insertion in model container [2020-11-28 02:57:57,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:56" (2/3) ... [2020-11-28 02:57:57,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69841db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:57, skipping insertion in model container [2020-11-28 02:57:57,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:57" (3/3) ... [2020-11-28 02:57:57,277 INFO L111 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2020-11-28 02:57:57,290 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:57:57,296 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-11-28 02:57:57,305 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-11-28 02:57:57,323 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:57:57,323 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 02:57:57,323 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:57:57,323 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:57,323 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:57,324 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:57:57,324 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:57,324 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:57:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2020-11-28 02:57:57,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:57:57,351 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:57,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:57,352 INFO L429 AbstractCegarLoop]: === Iteration 1 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 02:57:57,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:57,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1899922095, now seen corresponding path program 1 times [2020-11-28 02:57:57,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 02:57:57,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133319324] [2020-11-28 02:57:57,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 02:57:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:57,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 02:57:57,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:57,670 INFO L350 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-11-28 02:57:57,671 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2020-11-28 02:57:57,671 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:57,679 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:57,682 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 02:57:57,682 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2020-11-28 02:57:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:57,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 02:57:57,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:57,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133319324] [2020-11-28 02:57:57,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:57,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 02:57:57,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019601493] [2020-11-28 02:57:57,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 02:57:57,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 02:57:57,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 02:57:57,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:57,763 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 3 states. [2020-11-28 02:57:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:57:58,046 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2020-11-28 02:57:58,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 02:57:58,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-28 02:57:58,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:57:58,057 INFO L225 Difference]: With dead ends: 71 [2020-11-28 02:57:58,058 INFO L226 Difference]: Without dead ends: 68 [2020-11-28 02:57:58,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 02:57:58,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-28 02:57:58,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-28 02:57:58,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-28 02:57:58,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2020-11-28 02:57:58,093 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 11 [2020-11-28 02:57:58,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:57:58,094 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2020-11-28 02:57:58,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 02:57:58,094 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2020-11-28 02:57:58,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:57:58,095 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:58,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:57:58,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 02:57:58,301 INFO L429 AbstractCegarLoop]: === Iteration 2 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 02:57:58,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:58,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1899922094, now seen corresponding path program 1 times [2020-11-28 02:57:58,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 02:57:58,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072065157] [2020-11-28 02:57:58,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 02:57:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:57:58,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 02:57:58,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:57:58,522 INFO L441 ElimStorePlain]: Different costs {0=[|v_#length_31|], 1=[|v_#valid_47|]} [2020-11-28 02:57:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-28 02:57:58,531 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2020-11-28 02:57:58,531 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:58,547 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:58,558 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-28 02:57:58,560 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:58,577 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:58,579 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-11-28 02:57:58,580 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:21 [2020-11-28 02:57:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:58,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 02:57:58,787 INFO L441 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2020-11-28 02:57:58,803 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-28 02:57:58,805 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:58,818 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:58,822 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-28 02:57:58,823 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-28 02:57:58,835 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 02:57:58,843 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 02:57:58,844 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:5 [2020-11-28 02:57:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:57:58,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2072065157] [2020-11-28 02:57:58,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:57:58,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-28 02:57:58,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99498054] [2020-11-28 02:57:58,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 02:57:58,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 02:57:58,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 02:57:58,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:57:58,908 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 8 states. [2020-11-28 02:58:00,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:58:00,255 INFO L93 Difference]: Finished difference Result 166 states and 186 transitions. [2020-11-28 02:58:00,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 02:58:00,256 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 02:58:00,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:58:00,260 INFO L225 Difference]: With dead ends: 166 [2020-11-28 02:58:00,260 INFO L226 Difference]: Without dead ends: 166 [2020-11-28 02:58:00,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-28 02:58:00,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-11-28 02:58:00,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 127. [2020-11-28 02:58:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-11-28 02:58:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 177 transitions. [2020-11-28 02:58:00,296 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 177 transitions. Word has length 11 [2020-11-28 02:58:00,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:58:00,296 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 177 transitions. [2020-11-28 02:58:00,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 02:58:00,296 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 177 transitions. [2020-11-28 02:58:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:58:00,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:58:00,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:58:00,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 02:58:00,505 INFO L429 AbstractCegarLoop]: === Iteration 3 === [lisErr12REQUIRES_VIOLATION, lisErr11REQUIRES_VIOLATION, lisErr10REQUIRES_VIOLATION, lisErr23ASSERT_VIOLATIONMEMORY_FREE, lisErr9REQUIRES_VIOLATION, lisErr8REQUIRES_VIOLATION, lisErr26ASSERT_VIOLATIONMEMORY_FREE, lisErr17REQUIRES_VIOLATION, lisErr25ASSERT_VIOLATIONMEMORY_FREE, lisErr16REQUIRES_VIOLATION, lisErr15REQUIRES_VIOLATION, lisErr14REQUIRES_VIOLATION, lisErr13REQUIRES_VIOLATION, lisErr1REQUIRES_VIOLATION, lisErr0REQUIRES_VIOLATION, lisErr21REQUIRES_VIOLATION, lisErr22ASSERT_VIOLATIONMEMORY_FREE, lisErr27ASSERT_VIOLATIONMEMORY_FREE, lisErr20REQUIRES_VIOLATION, lisErr24ASSERT_VIOLATIONMEMORY_FREE, lisErr19REQUIRES_VIOLATION, lisErr18REQUIRES_VIOLATION, lisErr7REQUIRES_VIOLATION, lisErr6REQUIRES_VIOLATION, lisErr5REQUIRES_VIOLATION, lisErr4REQUIRES_VIOLATION, lisErr3REQUIRES_VIOLATION, lisErr2REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-28 02:58:00,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:00,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1898075052, now seen corresponding path program 1 times [2020-11-28 02:58:00,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 02:58:00,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737125747] [2020-11-28 02:58:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 02:58:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:00,681 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:58:00,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:58:00,753 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 02:58:00,754 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:58:00,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 02:58:00,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:58:00 BoogieIcfgContainer [2020-11-28 02:58:00,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:58:00,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:58:00,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:58:00,985 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:58:00,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:57" (3/4) ... [2020-11-28 02:58:00,987 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:58:01,050 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6b544a5c-26d0-4843-8d79-ea25d409ee1b/bin/uautomizer/witness.graphml [2020-11-28 02:58:01,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:58:01,052 INFO L168 Benchmark]: Toolchain (without parser) took 5578.26 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 33.8 MB in the beginning and 37.1 MB in the end (delta: -3.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:01,053 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 56.6 MB. Free memory is still 38.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:01,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.05 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 25.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:01,054 INFO L168 Benchmark]: Boogie Preprocessor took 66.45 ms. Allocated memory is still 56.6 MB. Free memory was 25.4 MB in the beginning and 22.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:01,054 INFO L168 Benchmark]: RCFGBuilder took 1154.01 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 22.5 MB in the beginning and 41.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:01,055 INFO L168 Benchmark]: TraceAbstraction took 3715.70 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 41.4 MB in the beginning and 38.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:01,056 INFO L168 Benchmark]: Witness Printer took 66.40 ms. Allocated memory is still 83.9 MB. Free memory was 38.5 MB in the beginning and 37.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:01,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 56.6 MB. Free memory is still 38.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 570.05 ms. Allocated memory is still 56.6 MB. Free memory was 33.7 MB in the beginning and 25.4 MB in the end (delta: 8.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.45 ms. Allocated memory is still 56.6 MB. Free memory was 25.4 MB in the beginning and 22.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1154.01 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 22.5 MB in the beginning and 41.8 MB in the end (delta: -19.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3715.70 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 41.4 MB in the beginning and 38.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * Witness Printer took 66.40 ms. Allocated memory is still 83.9 MB. Free memory was 38.5 MB in the beginning and 37.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 518]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) VAL [N=1073741824] [L535] CALL lis(a, N) VAL [\old(N)=1073741824, a={7:8}] [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 VAL [\old(N)=1073741824, a={7:8}, a={7:8}, best={1:0}, i=0, malloc(sizeof(int) * N)={1:0}, malloc(sizeof(int) * N)={2:0}, max=0, N=1073741824, prev={2:0}] [L517] COND TRUE i < N VAL [\old(N)=1073741824, a={7:8}, a={7:8}, best={1:0}, i=0, malloc(sizeof(int) * N)={1:0}, malloc(sizeof(int) * N)={2:0}, max=0, N=1073741824, prev={2:0}] [L518] best[i] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 100 locations, 29 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 123 SDtfs, 191 SDslu, 269 SDs, 0 SdLazy, 186 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 39 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 2 QuantifiedInterpolants, 1600 SizeOfPredicates, 10 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 proved your program to be incorrect! Received shutdown request...