./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI --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 Taipan --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_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI --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 Taipan --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 0.2.0-7b2dab5 [2021-10-11 02:23:25,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:25,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:25,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:25,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:25,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:25,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:25,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:25,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:25,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:25,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:25,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:25,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:25,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:25,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:25,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:25,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:25,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:25,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:25,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:25,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:25,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:25,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:25,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:25,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:25,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:25,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:25,703 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:25,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:25,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:25,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:25,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:25,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:25,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:25,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:25,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:25,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:25,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:25,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:25,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:25,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:25,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:23:25,766 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:25,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:25,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:25,772 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:25,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:25,772 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:25,772 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:23:25,773 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:25,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:25,773 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:23:25,774 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:23:25,774 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:25,775 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:23:25,775 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:23:25,775 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:23:25,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:23:25,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:23:25,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:25,777 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:25,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:23:25,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:25,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:25,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:25,778 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:23:25,778 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:23:25,778 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:23:25,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:25,780 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:25,780 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:25,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:25,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:25,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:25,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:25,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:25,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:25,782 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:23:25,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:23:25,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:25,783 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:25,783 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2021-10-11 02:23:26,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:26,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:26,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:26,097 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:26,098 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:26,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-10-11 02:23:26,189 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data/e1127a31f/c2ba1486182a4f088057b98e826fed7d/FLAG0e0d7e36e [2021-10-11 02:23:26,770 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:26,774 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-10-11 02:23:26,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data/e1127a31f/c2ba1486182a4f088057b98e826fed7d/FLAG0e0d7e36e [2021-10-11 02:23:27,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data/e1127a31f/c2ba1486182a4f088057b98e826fed7d [2021-10-11 02:23:27,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:27,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:27,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:27,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:27,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:27,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:27" (1/1) ... [2021-10-11 02:23:27,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52f08c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:27, skipping insertion in model container [2021-10-11 02:23:27,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:27" (1/1) ... [2021-10-11 02:23:27,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:27,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:27,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:27,449 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) [2021-10-11 02:23:27,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f4599a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:27, skipping insertion in model container [2021-10-11 02:23:27,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:27,451 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:23:27,454 INFO L168 Benchmark]: Toolchain (without parser) took 423.73 ms. Allocated memory is still 111.1 MB. Free memory was 68.1 MB in the beginning and 84.2 MB in the end (delta: -16.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:27,456 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 86.0 MB in the end (delta: 62.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:27,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.96 ms. Allocated memory is still 111.1 MB. Free memory was 67.9 MB in the beginning and 84.2 MB in the end (delta: -16.3 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:27,461 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 111.1 MB. Free memory was 86.0 MB in the beginning and 86.0 MB in the end (delta: 62.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 420.96 ms. Allocated memory is still 111.1 MB. Free memory was 67.9 MB in the beginning and 84.2 MB in the end (delta: -16.3 MB). Peak memory consumption was 8.6 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 0.2.0-7b2dab5 [2021-10-11 02:23:29,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:29,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:29,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:29,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:29,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:29,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:29,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:29,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:29,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:29,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:29,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:29,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:29,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:29,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:29,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:29,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:29,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:29,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:29,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:29,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:29,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:29,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:29,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:29,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:29,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:29,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:29,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:29,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:29,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:29,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:29,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:29,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:29,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:29,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:29,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:29,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:29,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:29,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:29,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:29,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:29,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-11 02:23:30,004 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:30,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:30,006 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:30,006 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:30,007 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:30,007 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:30,007 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:30,007 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:30,007 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:30,009 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:23:30,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:23:30,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:30,010 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:30,011 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:23:30,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:30,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:30,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:30,011 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:23:30,012 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:23:30,012 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:23:30,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:30,012 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:30,012 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:23:30,012 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:23:30,013 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:30,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:30,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:30,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:23:30,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:30,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:30,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:30,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:30,014 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:23:30,015 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:23:30,015 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:30,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:30,015 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_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2021-10-11 02:23:30,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:30,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:30,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:30,451 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:30,452 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:30,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-10-11 02:23:30,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data/1b807439d/7cc846f0f6eb4482b1aa05f6c3289665/FLAG571b62d91 [2021-10-11 02:23:31,210 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:31,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-10-11 02:23:31,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data/1b807439d/7cc846f0f6eb4482b1aa05f6c3289665/FLAG571b62d91 [2021-10-11 02:23:31,460 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/data/1b807439d/7cc846f0f6eb4482b1aa05f6c3289665 [2021-10-11 02:23:31,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:31,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:31,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:31,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:31,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:31,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:31" (1/1) ... [2021-10-11 02:23:31,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b70752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:31, skipping insertion in model container [2021-10-11 02:23:31,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:31" (1/1) ... [2021-10-11 02:23:31,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:31,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:31,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:31,882 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:23:31,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:31,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:31,931 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:23:31,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:32,058 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:23:32,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32 WrapperNode [2021-10-11 02:23:32,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:32,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:32,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:23:32,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:23:32,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:32,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:23:32,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:23:32,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:23:32,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:23:32,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:23:32,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:23:32,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:23:32,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:23:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:23:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:23:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:23:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:23:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:23:33,104 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:23:33,105 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-11 02:23:33,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33 BoogieIcfgContainer [2021-10-11 02:23:33,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:23:33,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:23:33,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:23:33,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:23:33,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:23:31" (1/3) ... [2021-10-11 02:23:33,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7d2594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:33, skipping insertion in model container [2021-10-11 02:23:33,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (2/3) ... [2021-10-11 02:23:33,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7d2594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:33, skipping insertion in model container [2021-10-11 02:23:33,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33" (3/3) ... [2021-10-11 02:23:33,118 INFO L111 eAbstractionObserver]: Analyzing ICFG lis_unsafe.i [2021-10-11 02:23:33,133 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:23:33,138 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2021-10-11 02:23:33,150 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-10-11 02:23:33,170 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:23:33,170 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:23:33,170 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:23:33,170 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:23:33,170 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:23:33,170 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:23:33,171 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:23:33,171 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:23:33,186 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2021-10-11 02:23:33,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:23:33,193 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:33,193 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:23:33,194 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-10-11 02:23:33,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:33,200 INFO L82 PathProgramCache]: Analyzing trace with hash 889508873, now seen corresponding path program 1 times [2021-10-11 02:23:33,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:33,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [650961100] [2021-10-11 02:23:33,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:33,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:23:33,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:33,496 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-10-11 02:23:33,497 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2021-10-11 02:23:33,501 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:23:33,525 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:23:33,533 INFO L547 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. [2021-10-11 02:23:33,534 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:19 [2021-10-11 02:23:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:33,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:33,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [650961100] [2021-10-11 02:23:33,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:33,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:33,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508352916] [2021-10-11 02:23:33,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:33,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:33,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:33,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:33,614 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states. [2021-10-11 02:23:33,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:33,866 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2021-10-11 02:23:33,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:33,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-10-11 02:23:33,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:33,876 INFO L225 Difference]: With dead ends: 63 [2021-10-11 02:23:33,876 INFO L226 Difference]: Without dead ends: 61 [2021-10-11 02:23:33,878 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:33,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-11 02:23:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-11 02:23:33,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2021-10-11 02:23:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 68 transitions. [2021-10-11 02:23:33,913 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 68 transitions. Word has length 6 [2021-10-11 02:23:33,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:33,913 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 68 transitions. [2021-10-11 02:23:33,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:33,914 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 68 transitions. [2021-10-11 02:23:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:23:33,914 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:33,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:23:34,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:23:34,152 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-10-11 02:23:34,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:34,153 INFO L82 PathProgramCache]: Analyzing trace with hash 889508874, now seen corresponding path program 1 times [2021-10-11 02:23:34,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:34,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062904936] [2021-10-11 02:23:34,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:34,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:23:34,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:34,280 INFO L443 ElimStorePlain]: Different costs {0=[|v_#length_26|], 1=[|v_#valid_38|]} [2021-10-11 02:23:34,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:23:34,287 INFO L382 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 [2021-10-11 02:23:34,288 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:23:34,303 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:23:34,311 INFO L382 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 [2021-10-11 02:23:34,317 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-11 02:23:34,332 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:23:34,335 INFO L547 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. [2021-10-11 02:23:34,335 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:24, output treesize:23 [2021-10-11 02:23:34,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:34,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:34,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062904936] [2021-10-11 02:23:34,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:34,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:34,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200814813] [2021-10-11 02:23:34,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:23:34,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:34,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:23:34,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:23:34,376 INFO L87 Difference]: Start difference. First operand 61 states and 68 transitions. Second operand 4 states. [2021-10-11 02:23:34,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:34,794 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2021-10-11 02:23:34,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:23:34,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 02:23:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:34,798 INFO L225 Difference]: With dead ends: 126 [2021-10-11 02:23:34,798 INFO L226 Difference]: Without dead ends: 126 [2021-10-11 02:23:34,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:34,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-11 02:23:34,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 64. [2021-10-11 02:23:34,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-10-11 02:23:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2021-10-11 02:23:34,808 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 6 [2021-10-11 02:23:34,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:34,809 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2021-10-11 02:23:34,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:23:34,809 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-10-11 02:23:34,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:23:34,809 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:34,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:23:35,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:23:35,010 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2021-10-11 02:23:35,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:35,011 INFO L82 PathProgramCache]: Analyzing trace with hash 889568456, now seen corresponding path program 1 times [2021-10-11 02:23:35,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:35,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727460269] [2021-10-11 02:23:35,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:23:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:35,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:35,108 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:35,132 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:23:35,132 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:23:35,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:23:35,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:35 BoogieIcfgContainer [2021-10-11 02:23:35,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:35,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:35,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:35,353 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:35,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33" (3/4) ... [2021-10-11 02:23:35,355 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:23:35,392 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b673dbc4-9caa-44cb-907a-0551c94a2251/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:23:35,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:35,394 INFO L168 Benchmark]: Toolchain (without parser) took 3928.76 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 42.0 MB in the beginning and 55.7 MB in the end (delta: -13.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:35,394 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 62.9 MB. Free memory is still 44.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:35,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 593.58 ms. Allocated memory is still 62.9 MB. Free memory was 41.8 MB in the beginning and 30.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:35,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.26 ms. Allocated memory is still 62.9 MB. Free memory was 30.2 MB in the beginning and 28.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:35,396 INFO L168 Benchmark]: Boogie Preprocessor took 66.07 ms. Allocated memory is still 62.9 MB. Free memory was 28.1 MB in the beginning and 26.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:35,397 INFO L168 Benchmark]: RCFGBuilder took 924.85 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 26.4 MB in the beginning and 68.7 MB in the end (delta: -42.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:35,398 INFO L168 Benchmark]: TraceAbstraction took 2241.45 ms. Allocated memory is still 88.1 MB. Free memory was 68.7 MB in the beginning and 57.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:35,399 INFO L168 Benchmark]: Witness Printer took 40.34 ms. Allocated memory is still 88.1 MB. Free memory was 57.7 MB in the beginning and 55.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:35,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 62.9 MB. Free memory is still 44.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 593.58 ms. Allocated memory is still 62.9 MB. Free memory was 41.8 MB in the beginning and 30.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.26 ms. Allocated memory is still 62.9 MB. Free memory was 30.2 MB in the beginning and 28.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.07 ms. Allocated memory is still 62.9 MB. Free memory was 28.1 MB in the beginning and 26.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 924.85 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 26.4 MB in the beginning and 68.7 MB in the end (delta: -42.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2241.45 ms. Allocated memory is still 88.1 MB. Free memory was 68.7 MB in the beginning and 57.7 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Witness Printer took 40.34 ms. Allocated memory is still 88.1 MB. Free memory was 57.7 MB in the beginning and 55.7 MB in the end (delta: 2.0 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) [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 [L517] COND TRUE i < N [L518] best[i] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 29 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 129 SDslu, 100 SDs, 0 SdLazy, 89 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=0, 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, 62 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 4 QuantifiedInterpolants, 460 SizeOfPredicates, 8 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...