./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8 --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 52769785b06238c88fd6b21b09d77c08165e59529f322f93adf725e9d68e47df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:04:00,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:04:00,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:04:00,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:04:00,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:04:00,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:04:00,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:04:00,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:04:00,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:04:00,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:04:00,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:04:00,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:04:00,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:04:00,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:04:00,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:04:00,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:04:00,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:04:00,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:04:00,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:04:00,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:04:00,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:04:00,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:04:00,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:04:00,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:04:00,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:04:00,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:04:00,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:04:00,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:04:00,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:04:00,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:04:00,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:04:00,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:04:00,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:04:00,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:04:00,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:04:00,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:04:00,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:04:00,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:04:00,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:04:00,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:04:00,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:04:00,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-07 02:04:01,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:04:01,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:04:01,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:04:01,027 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:04:01,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:04:01,027 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:04:01,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:04:01,028 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:04:01,028 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:04:01,029 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:04:01,029 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:04:01,029 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:04:01,030 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:04:01,030 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:04:01,030 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:04:01,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 02:04:01,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 02:04:01,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:04:01,032 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:04:01,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 02:04:01,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:04:01,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:04:01,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:04:01,034 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 02:04:01,034 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 02:04:01,034 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 02:04:01,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:04:01,035 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:04:01,035 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:04:01,036 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:04:01,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:04:01,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:04:01,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:04:01,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:04:01,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:04:01,038 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:04:01,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:04:01,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:04:01,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:04:01,039 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_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52769785b06238c88fd6b21b09d77c08165e59529f322f93adf725e9d68e47df [2021-11-07 02:04:01,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:04:01,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:04:01,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:04:01,450 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:04:01,451 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:04:01,452 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i [2021-11-07 02:04:01,550 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data/f14b19d66/0eea60ef7fd14b36b76582eb47c4e0da/FLAG894d7a3bd [2021-11-07 02:04:02,228 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:04:02,230 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i [2021-11-07 02:04:02,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data/f14b19d66/0eea60ef7fd14b36b76582eb47c4e0da/FLAG894d7a3bd [2021-11-07 02:04:02,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data/f14b19d66/0eea60ef7fd14b36b76582eb47c4e0da [2021-11-07 02:04:02,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:04:02,493 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:04:02,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:04:02,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:04:02,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:04:02,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:04:02" (1/1) ... [2021-11-07 02:04:02,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5024ad50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:02, skipping insertion in model container [2021-11-07 02:04:02,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:04:02" (1/1) ... [2021-11-07 02:04:02,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:04:02,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:04:02,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:04:03,005 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) [2021-11-07 02:04:03,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@106b2230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:03, skipping insertion in model container [2021-11-07 02:04:03,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:04:03,006 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:04:03,008 INFO L168 Benchmark]: Toolchain (without parser) took 514.48 ms. Allocated memory is still 88.1 MB. Free memory was 53.4 MB in the beginning and 64.6 MB in the end (delta: -11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:04:03,009 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 60.3 MB in the beginning and 60.3 MB in the end (delta: 32.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:04:03,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.26 ms. Allocated memory is still 88.1 MB. Free memory was 53.1 MB in the beginning and 64.6 MB in the end (delta: -11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:04:03,013 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 88.1 MB. Free memory was 60.3 MB in the beginning and 60.3 MB in the end (delta: 32.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 508.26 ms. Allocated memory is still 88.1 MB. Free memory was 53.1 MB in the beginning and 64.6 MB in the end (delta: -11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8 --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 52769785b06238c88fd6b21b09d77c08165e59529f322f93adf725e9d68e47df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:04:05,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:04:05,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:04:05,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:04:05,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:04:05,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:04:05,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:04:05,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:04:05,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:04:05,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:04:05,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:04:05,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:04:05,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:04:05,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:04:05,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:04:05,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:04:05,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:04:05,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:04:05,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:04:05,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:04:05,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:04:05,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:04:05,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:04:05,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:04:05,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:04:05,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:04:05,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:04:05,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:04:05,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:04:05,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:04:05,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:04:05,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:04:05,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:04:05,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:04:05,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:04:05,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:04:05,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:04:05,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:04:05,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:04:05,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:04:05,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:04:05,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-07 02:04:05,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:04:05,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:04:05,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:04:05,701 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:04:05,701 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:04:05,702 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:04:05,702 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:04:05,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:04:05,702 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:04:05,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 02:04:05,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 02:04:05,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:04:05,706 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:04:05,707 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 02:04:05,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:04:05,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:04:05,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:04:05,708 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-07 02:04:05,708 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-07 02:04:05,708 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-07 02:04:05,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:04:05,709 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:04:05,709 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:04:05,709 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:04:05,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:04:05,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:04:05,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:04:05,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:04:05,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:04:05,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:04:05,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:04:05,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:04:05,712 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:04:05,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:04:05,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:04:05,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:04:05,714 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_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52769785b06238c88fd6b21b09d77c08165e59529f322f93adf725e9d68e47df [2021-11-07 02:04:06,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:04:06,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:04:06,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:04:06,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:04:06,220 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:04:06,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i [2021-11-07 02:04:06,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data/971bc0c3f/39189b72611b482faaadbd04561ebf45/FLAGd2ba6d4e2 [2021-11-07 02:04:07,001 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:04:07,002 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test01-1.i [2021-11-07 02:04:07,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data/971bc0c3f/39189b72611b482faaadbd04561ebf45/FLAGd2ba6d4e2 [2021-11-07 02:04:07,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/data/971bc0c3f/39189b72611b482faaadbd04561ebf45 [2021-11-07 02:04:07,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:04:07,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:04:07,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:04:07,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:04:07,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:04:07,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:07,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac0bc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07, skipping insertion in model container [2021-11-07 02:04:07,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:07,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:04:07,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:04:07,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:04:07,716 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:04:07,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:04:07,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:04:07,780 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:04:07,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:04:07,926 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:04:07,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07 WrapperNode [2021-11-07 02:04:07,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:04:07,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:04:07,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:04:07,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:04:07,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:07,988 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:04:08,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:04:08,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:04:08,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:04:08,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:04:08,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:04:08,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:04:08,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:04:08,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (1/1) ... [2021-11-07 02:04:08,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:04:08,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:04:08,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:04:08,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:04:08,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:04:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:04:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:04:08,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:04:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:04:08,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:04:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:04:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:04:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:04:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:04:08,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:04:09,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:04:09,725 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-11-07 02:04:09,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:04:09 BoogieIcfgContainer [2021-11-07 02:04:09,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:04:09,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:04:09,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:04:09,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:04:09,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:04:07" (1/3) ... [2021-11-07 02:04:09,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73228ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:04:09, skipping insertion in model container [2021-11-07 02:04:09,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:04:07" (2/3) ... [2021-11-07 02:04:09,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73228ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:04:09, skipping insertion in model container [2021-11-07 02:04:09,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:04:09" (3/3) ... [2021-11-07 02:04:09,739 INFO L111 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test01-1.i [2021-11-07 02:04:09,744 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:04:09,745 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 132 error locations. [2021-11-07 02:04:09,800 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:04:09,809 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:04:09,809 INFO L340 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2021-11-07 02:04:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 132 states have (on average 2.1818181818181817) internal successors, (288), 264 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:09,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:04:09,866 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:09,866 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:04:09,867 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:09,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2021-11-07 02:04:09,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:09,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772794094] [2021-11-07 02:04:09,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:09,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:09,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:09,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:09,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:04:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:09,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:04:09,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:10,041 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 02:04:10,108 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 02:04:10,109 INFO L388 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 24 [2021-11-07 02:04:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:10,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:10,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:10,194 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:10,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772794094] [2021-11-07 02:04:10,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772794094] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:10,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:10,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:04:10,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911618837] [2021-11-07 02:04:10,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:04:10,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:10,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:04:10,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:04:10,221 INFO L87 Difference]: Start difference. First operand has 265 states, 132 states have (on average 2.1818181818181817) internal successors, (288), 264 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:11,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:11,340 INFO L93 Difference]: Finished difference Result 283 states and 301 transitions. [2021-11-07 02:04:11,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:04:11,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-07 02:04:11,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:11,354 INFO L225 Difference]: With dead ends: 283 [2021-11-07 02:04:11,354 INFO L226 Difference]: Without dead ends: 281 [2021-11-07 02:04:11,355 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:04:11,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-11-07 02:04:11,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 255. [2021-11-07 02:04:11,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 131 states have (on average 2.0763358778625953) internal successors, (272), 254 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:11,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 272 transitions. [2021-11-07 02:04:11,408 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 272 transitions. Word has length 4 [2021-11-07 02:04:11,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:11,408 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 272 transitions. [2021-11-07 02:04:11,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:11,409 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 272 transitions. [2021-11-07 02:04:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:04:11,409 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:11,409 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:04:11,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 02:04:11,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:11,622 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:11,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2021-11-07 02:04:11,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:11,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971441431] [2021-11-07 02:04:11,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:11,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:11,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:11,626 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:11,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:04:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:11,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 02:04:11,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:11,734 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 02:04:11,744 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 02:04:11,861 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 02:04:11,861 INFO L388 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 28 treesize of output 30 [2021-11-07 02:04:11,875 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 02:04:11,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-11-07 02:04:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:11,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:12,213 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:12,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971441431] [2021-11-07 02:04:12,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971441431] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:12,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:12,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-07 02:04:12,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070267190] [2021-11-07 02:04:12,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:04:12,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:12,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:04:12,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:04:12,223 INFO L87 Difference]: Start difference. First operand 255 states and 272 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:30,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:30,094 INFO L93 Difference]: Finished difference Result 392 states and 416 transitions. [2021-11-07 02:04:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:04:30,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-07 02:04:30,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:30,099 INFO L225 Difference]: With dead ends: 392 [2021-11-07 02:04:30,099 INFO L226 Difference]: Without dead ends: 392 [2021-11-07 02:04:30,100 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:04:30,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-11-07 02:04:30,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 266. [2021-11-07 02:04:30,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 146 states have (on average 1.9863013698630136) internal successors, (290), 265 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 290 transitions. [2021-11-07 02:04:30,152 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 290 transitions. Word has length 4 [2021-11-07 02:04:30,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:30,153 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 290 transitions. [2021-11-07 02:04:30,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:30,153 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 290 transitions. [2021-11-07 02:04:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 02:04:30,164 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:30,165 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 02:04:30,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-07 02:04:30,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:30,376 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:30,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:30,377 INFO L85 PathProgramCache]: Analyzing trace with hash 28694727, now seen corresponding path program 1 times [2021-11-07 02:04:30,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:30,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819190599] [2021-11-07 02:04:30,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:30,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:30,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:30,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:30,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:04:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:30,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:04:30,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:30,482 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 02:04:30,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:30,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:30,535 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:30,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819190599] [2021-11-07 02:04:30,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [819190599] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:30,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:30,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:04:30,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404855051] [2021-11-07 02:04:30,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:04:30,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:30,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:04:30,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:04:30,539 INFO L87 Difference]: Start difference. First operand 266 states and 290 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:31,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:31,287 INFO L93 Difference]: Finished difference Result 279 states and 299 transitions. [2021-11-07 02:04:31,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:04:31,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 02:04:31,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:31,290 INFO L225 Difference]: With dead ends: 279 [2021-11-07 02:04:31,290 INFO L226 Difference]: Without dead ends: 279 [2021-11-07 02:04:31,291 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:04:31,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-07 02:04:31,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 262. [2021-11-07 02:04:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 146 states have (on average 1.9452054794520548) internal successors, (284), 261 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:31,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2021-11-07 02:04:31,303 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 5 [2021-11-07 02:04:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:31,303 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2021-11-07 02:04:31,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:31,304 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2021-11-07 02:04:31,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 02:04:31,304 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:31,305 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 02:04:31,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-07 02:04:31,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:31,519 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:31,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:31,520 INFO L85 PathProgramCache]: Analyzing trace with hash 28694728, now seen corresponding path program 1 times [2021-11-07 02:04:31,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:31,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967306464] [2021-11-07 02:04:31,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:31,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:31,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:31,523 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:31,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:04:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:31,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:04:31,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:31,638 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 02:04:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:31,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:31,788 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:31,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967306464] [2021-11-07 02:04:31,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967306464] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:31,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:31,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:04:31,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725277429] [2021-11-07 02:04:31,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:04:31,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:31,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:04:31,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:04:31,791 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:33,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:33,752 INFO L93 Difference]: Finished difference Result 407 states and 437 transitions. [2021-11-07 02:04:33,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:04:33,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 02:04:33,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:33,757 INFO L225 Difference]: With dead ends: 407 [2021-11-07 02:04:33,758 INFO L226 Difference]: Without dead ends: 407 [2021-11-07 02:04:33,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:04:33,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-11-07 02:04:33,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 264. [2021-11-07 02:04:33,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 150 states have (on average 1.9066666666666667) internal successors, (286), 263 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:33,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2021-11-07 02:04:33,775 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 5 [2021-11-07 02:04:33,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:33,775 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2021-11-07 02:04:33,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:33,776 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2021-11-07 02:04:33,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 02:04:33,777 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:33,777 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:33,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:33,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:33,991 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:33,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:33,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1328641074, now seen corresponding path program 1 times [2021-11-07 02:04:33,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:33,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143232108] [2021-11-07 02:04:34,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:34,000 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:34,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:34,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:34,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:04:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:34,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 02:04:34,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:34,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:34,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:34,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:34,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143232108] [2021-11-07 02:04:34,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143232108] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:34,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:34,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:04:34,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653888424] [2021-11-07 02:04:34,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:04:34,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:34,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:04:34,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:04:34,201 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:34,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:34,230 INFO L93 Difference]: Finished difference Result 255 states and 275 transitions. [2021-11-07 02:04:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:04:34,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 02:04:34,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:34,233 INFO L225 Difference]: With dead ends: 255 [2021-11-07 02:04:34,233 INFO L226 Difference]: Without dead ends: 255 [2021-11-07 02:04:34,233 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:04:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-07 02:04:34,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-11-07 02:04:34,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 145 states have (on average 1.896551724137931) internal successors, (275), 254 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 275 transitions. [2021-11-07 02:04:34,241 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 275 transitions. Word has length 10 [2021-11-07 02:04:34,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:34,242 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 275 transitions. [2021-11-07 02:04:34,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 275 transitions. [2021-11-07 02:04:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 02:04:34,243 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:34,243 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:34,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 02:04:34,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:34,452 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr50REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:34,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:34,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1328508074, now seen corresponding path program 1 times [2021-11-07 02:04:34,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:34,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314220454] [2021-11-07 02:04:34,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:34,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:34,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:34,454 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:34,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:04:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:34,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 02:04:34,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:34,576 INFO L388 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-07 02:04:34,661 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-07 02:04:34,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2021-11-07 02:04:34,820 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-07 02:04:34,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 44 [2021-11-07 02:04:34,859 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-07 02:04:34,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 32 treesize of output 31 [2021-11-07 02:04:34,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 21 [2021-11-07 02:04:34,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 18 treesize of output 10 [2021-11-07 02:04:34,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:34,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:44,442 WARN L207 SmtUtils]: Spent 7.30 s on a formula simplification that was a NOOP. DAG size: 26 [2021-11-07 02:04:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:50,685 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:50,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314220454] [2021-11-07 02:04:50,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314220454] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:50,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:50,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 02:04:50,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671213537] [2021-11-07 02:04:50,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:04:50,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:50,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:04:50,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=35, Unknown=4, NotChecked=0, Total=56 [2021-11-07 02:04:50,689 INFO L87 Difference]: Start difference. First operand 255 states and 275 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:53,406 INFO L93 Difference]: Finished difference Result 266 states and 286 transitions. [2021-11-07 02:04:53,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:04:53,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 02:04:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:53,410 INFO L225 Difference]: With dead ends: 266 [2021-11-07 02:04:53,410 INFO L226 Difference]: Without dead ends: 266 [2021-11-07 02:04:53,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=30, Invalid=56, Unknown=4, NotChecked=0, Total=90 [2021-11-07 02:04:53,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-07 02:04:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 261. [2021-11-07 02:04:53,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 151 states have (on average 1.8609271523178808) internal successors, (281), 260 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:53,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 281 transitions. [2021-11-07 02:04:53,420 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 281 transitions. Word has length 10 [2021-11-07 02:04:53,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:53,420 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 281 transitions. [2021-11-07 02:04:53,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 281 transitions. [2021-11-07 02:04:53,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:04:53,422 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:53,422 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:53,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 02:04:53,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:53,629 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:53,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:53,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1761805906, now seen corresponding path program 1 times [2021-11-07 02:04:53,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:53,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290609385] [2021-11-07 02:04:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:53,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:53,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:53,638 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:53,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:04:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:53,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:04:53,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:53,804 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 02:04:53,804 INFO L388 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 14 [2021-11-07 02:04:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:53,830 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:53,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:53,869 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:53,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290609385] [2021-11-07 02:04:53,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290609385] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:53,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:53,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:04:53,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888066339] [2021-11-07 02:04:53,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:04:53,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:53,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:04:53,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:04:53,871 INFO L87 Difference]: Start difference. First operand 261 states and 281 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:54,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:54,715 INFO L93 Difference]: Finished difference Result 282 states and 306 transitions. [2021-11-07 02:04:54,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:04:54,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 02:04:54,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:54,721 INFO L225 Difference]: With dead ends: 282 [2021-11-07 02:04:54,721 INFO L226 Difference]: Without dead ends: 282 [2021-11-07 02:04:54,722 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:04:54,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-07 02:04:54,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 231. [2021-11-07 02:04:54,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 151 states have (on average 1.6622516556291391) internal successors, (251), 230 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 251 transitions. [2021-11-07 02:04:54,730 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 251 transitions. Word has length 11 [2021-11-07 02:04:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:54,731 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 251 transitions. [2021-11-07 02:04:54,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 251 transitions. [2021-11-07 02:04:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 02:04:54,732 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:54,732 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:54,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:04:54,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:54,945 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:54,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:54,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1761805907, now seen corresponding path program 1 times [2021-11-07 02:04:54,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:54,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844246689] [2021-11-07 02:04:54,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:54,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:54,948 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:54,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:04:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:55,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:04:55,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:55,137 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-07 02:04:55,137 INFO L388 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 1 case distinctions, treesize of input 18 treesize of output 19 [2021-11-07 02:04:55,152 INFO L388 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 20 treesize of output 18 [2021-11-07 02:04:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:55,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:55,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:55,285 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:55,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844246689] [2021-11-07 02:04:55,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844246689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:55,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:55,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:04:55,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116842568] [2021-11-07 02:04:55,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:04:55,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:55,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:04:55,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:04:55,287 INFO L87 Difference]: Start difference. First operand 231 states and 251 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:56,799 INFO L93 Difference]: Finished difference Result 365 states and 394 transitions. [2021-11-07 02:04:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:04:56,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 02:04:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:56,802 INFO L225 Difference]: With dead ends: 365 [2021-11-07 02:04:56,802 INFO L226 Difference]: Without dead ends: 365 [2021-11-07 02:04:56,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:04:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-07 02:04:56,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 213. [2021-11-07 02:04:56,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 151 states have (on average 1.5430463576158941) internal successors, (233), 212 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:56,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 233 transitions. [2021-11-07 02:04:56,811 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 233 transitions. Word has length 11 [2021-11-07 02:04:56,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:56,812 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 233 transitions. [2021-11-07 02:04:56,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:56,812 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 233 transitions. [2021-11-07 02:04:56,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 02:04:56,813 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:56,813 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:56,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 02:04:57,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:57,028 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:57,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:57,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2003218563, now seen corresponding path program 1 times [2021-11-07 02:04:57,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:57,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494217587] [2021-11-07 02:04:57,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:57,030 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:57,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:57,031 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:57,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:04:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:57,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:04:57,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:57,199 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 02:04:57,199 INFO L388 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 14 [2021-11-07 02:04:57,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 25 treesize of output 21 [2021-11-07 02:04:57,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 35 treesize of output 23 [2021-11-07 02:04:57,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:57,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:04:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:04:57,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:04:57,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494217587] [2021-11-07 02:04:57,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494217587] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:04:57,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:04:57,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:04:57,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864650563] [2021-11-07 02:04:57,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 02:04:57,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:04:57,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 02:04:57,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:04:57,486 INFO L87 Difference]: Start difference. First operand 213 states and 233 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:04:59,273 INFO L93 Difference]: Finished difference Result 269 states and 299 transitions. [2021-11-07 02:04:59,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 02:04:59,274 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 02:04:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:04:59,276 INFO L225 Difference]: With dead ends: 269 [2021-11-07 02:04:59,277 INFO L226 Difference]: Without dead ends: 269 [2021-11-07 02:04:59,277 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:04:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-11-07 02:04:59,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 219. [2021-11-07 02:04:59,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 157 states have (on average 1.5477707006369428) internal successors, (243), 218 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:59,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 243 transitions. [2021-11-07 02:04:59,285 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 243 transitions. Word has length 15 [2021-11-07 02:04:59,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:04:59,286 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 243 transitions. [2021-11-07 02:04:59,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:04:59,286 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 243 transitions. [2021-11-07 02:04:59,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 02:04:59,287 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:04:59,287 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:04:59,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-07 02:04:59,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:04:59,506 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:04:59,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:04:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2003218562, now seen corresponding path program 1 times [2021-11-07 02:04:59,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:04:59,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136295185] [2021-11-07 02:04:59,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:04:59,507 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:04:59,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:04:59,509 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:04:59,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:04:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:04:59,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:04:59,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:04:59,757 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-07 02:04:59,757 INFO L388 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 1 case distinctions, treesize of input 9 treesize of output 15 [2021-11-07 02:04:59,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 02:04:59,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-07 02:05:00,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 treesize of output 36 [2021-11-07 02:05:00,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 33 treesize of output 21 [2021-11-07 02:05:00,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:00,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:05:00,806 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:00,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136295185] [2021-11-07 02:05:00,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136295185] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:05:00,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:05:00,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-07 02:05:00,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082235890] [2021-11-07 02:05:00,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 02:05:00,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:05:00,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 02:05:00,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-07 02:05:00,808 INFO L87 Difference]: Start difference. First operand 219 states and 243 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:06,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:05:06,010 INFO L93 Difference]: Finished difference Result 221 states and 241 transitions. [2021-11-07 02:05:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:05:06,012 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 02:05:06,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:05:06,013 INFO L225 Difference]: With dead ends: 221 [2021-11-07 02:05:06,014 INFO L226 Difference]: Without dead ends: 221 [2021-11-07 02:05:06,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-07 02:05:06,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-11-07 02:05:06,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 219. [2021-11-07 02:05:06,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 157 states have (on average 1.5222929936305734) internal successors, (239), 218 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 239 transitions. [2021-11-07 02:05:06,021 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 239 transitions. Word has length 15 [2021-11-07 02:05:06,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:05:06,021 INFO L470 AbstractCegarLoop]: Abstraction has 219 states and 239 transitions. [2021-11-07 02:05:06,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:05:06,022 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 239 transitions. [2021-11-07 02:05:06,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 02:05:06,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:05:06,023 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:05:06,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:05:06,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:05:06,236 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 128 more)] === [2021-11-07 02:05:06,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:05:06,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1799893576, now seen corresponding path program 1 times [2021-11-07 02:05:06,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:05:06,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820051164] [2021-11-07 02:05:06,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:06,237 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:05:06,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:05:06,238 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:05:06,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 02:05:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:06,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:05:06,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:06,502 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 02:05:06,502 INFO L388 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 21 [2021-11-07 02:05:06,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-07 02:05:06,954 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-07 02:05:06,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 138 treesize of output 49 [2021-11-07 02:05:07,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 27 [2021-11-07 02:05:07,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 02:05:07,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:07,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:07,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 02:05:13,282 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_create_data_~counter~0 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32))) (= (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse2 (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))) (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_data_~data~0.base) .cse2))) (store |c_#memory_$Pointer$.base| .cse0 (let ((.cse1 (bvmul ULTIMATE.start_create_data_~counter~0 (_ bv4 32)))) (store (store (store (store (select |c_#memory_$Pointer$.base| .cse0) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| .cse1) v_DerPreprocessor_1) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32) .cse1) v_DerPreprocessor_2) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32) .cse1) v_DerPreprocessor_3) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32) .cse1) v_DerPreprocessor_4)))) c_ULTIMATE.start_create_data_~data~0.base) .cse2)))))))))))) (_ bv1 1)) (_ bv0 1))) is different from false [2021-11-07 02:05:15,332 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_create_data_~counter~0 (_ BitVec 32)) (v_DerPreprocessor_4 (_ BitVec 32)) (v_DerPreprocessor_3 (_ BitVec 32)) (v_DerPreprocessor_2 (_ BitVec 32)) (v_DerPreprocessor_1 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (let ((.cse2 (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))) (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_ULTIMATE.start_create_data_~data~0.base) .cse2))) (store |c_#memory_$Pointer$.base| .cse0 (let ((.cse1 (bvmul ULTIMATE.start_create_data_~counter~0 (_ bv4 32)))) (store (store (store (store (select |c_#memory_$Pointer$.base| .cse0) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| .cse1) v_DerPreprocessor_1) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32) .cse1) v_DerPreprocessor_2) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32) .cse1) v_DerPreprocessor_3) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32) .cse1) v_DerPreprocessor_4)))) c_ULTIMATE.start_create_data_~data~0.base) .cse2))))))))))))) (_ bv1 1)))) is different from false [2021-11-07 02:05:51,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:05:51,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820051164] [2021-11-07 02:05:51,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 02:05:51,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [868049327] [2021-11-07 02:05:51,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:05:51,722 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:05:51,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:05:51,733 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:05:51,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-07 02:05:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:05:52,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:05:52,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:05:52,206 INFO L354 Elim1Store]: treesize reduction 42, result has 33.3 percent of original size [2021-11-07 02:05:52,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 40 [2021-11-07 02:05:52,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-07 02:05:52,451 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-07 02:05:52,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 140 treesize of output 51 [2021-11-07 02:05:52,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 27 [2021-11-07 02:05:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 02:05:52,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:05:52,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:05:52,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-11-07 02:05:54,653 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_DerPreprocessor_7 (_ BitVec 32)) (v_DerPreprocessor_6 (_ BitVec 32)) (ULTIMATE.start_create_data_~counter~0 (_ BitVec 32)) (v_DerPreprocessor_5 (_ BitVec 32)) (|ULTIMATE.start_create_data_#t~mem11.offset| (_ BitVec 32)) (v_DerPreprocessor_8 (_ BitVec 32))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem11.base| (let ((.cse0 (bvmul ULTIMATE.start_create_data_~counter~0 (_ bv4 32)))) (store (store (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_data_#t~mem11.base|) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| .cse0) v_DerPreprocessor_5) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv1 32) .cse0) v_DerPreprocessor_6) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv2 32) .cse0) v_DerPreprocessor_7) (bvadd |ULTIMATE.start_create_data_#t~mem11.offset| (_ bv3 32) .cse0) v_DerPreprocessor_8))) c_ULTIMATE.start_create_data_~data~0.base) (bvadd (_ bv4 32) c_ULTIMATE.start_create_data_~data~0.offset))))))))))) (_ bv1 1)))) is different from false [2021-11-07 02:06:03,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 02:06:03,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621372520] [2021-11-07 02:06:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:06:03,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:06:03,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:06:03,004 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:06:03,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 02:06:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:06:03,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 02:06:03,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:06:03,230 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-07 02:06:03,230 INFO L388 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 20 treesize of output 22 [2021-11-07 02:06:03,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-07 02:06:03,505 INFO L354 Elim1Store]: treesize reduction 673, result has 1.3 percent of original size [2021-11-07 02:06:03,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 139 treesize of output 50 [2021-11-07 02:06:03,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 45 treesize of output 27 [2021-11-07 02:06:03,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 02:06:03,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:06:03,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:06:03,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-07 02:06:30,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-07 02:06:30,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:06:30,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-07 02:06:30,865 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-07 02:06:30,865 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-07 02:06:30,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-11-07 02:06:30,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-11-07 02:06:30,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-11-07 02:06:30,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-11-07 02:06:30,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-11-07 02:06:30,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-11-07 02:06:30,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-11-07 02:06:30,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-11-07 02:06:30,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION [2021-11-07 02:06:30,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-11-07 02:06:30,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-11-07 02:06:30,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-11-07 02:06:30,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-11-07 02:06:30,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-11-07 02:06:30,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-11-07 02:06:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-11-07 02:06:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-11-07 02:06:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-11-07 02:06:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-11-07 02:06:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-11-07 02:06:30,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-11-07 02:06:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-11-07 02:06:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-11-07 02:06:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION [2021-11-07 02:06:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-11-07 02:06:30,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-11-07 02:06:30,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION [2021-11-07 02:06:30,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44REQUIRES_VIOLATION [2021-11-07 02:06:30,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION [2021-11-07 02:06:30,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION [2021-11-07 02:06:30,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-11-07 02:06:30,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-11-07 02:06:30,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-11-07 02:06:30,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATION [2021-11-07 02:06:30,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51REQUIRES_VIOLATION [2021-11-07 02:06:30,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATION [2021-11-07 02:06:30,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-11-07 02:06:30,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATION [2021-11-07 02:06:30,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-11-07 02:06:30,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-11-07 02:06:30,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57REQUIRES_VIOLATION [2021-11-07 02:06:30,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATION [2021-11-07 02:06:30,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATION [2021-11-07 02:06:30,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATION [2021-11-07 02:06:30,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61REQUIRES_VIOLATION [2021-11-07 02:06:30,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62REQUIRES_VIOLATION [2021-11-07 02:06:30,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATION [2021-11-07 02:06:30,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATION [2021-11-07 02:06:30,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73REQUIRES_VIOLATION [2021-11-07 02:06:30,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82REQUIRES_VIOLATION [2021-11-07 02:06:30,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr84REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr85REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr86REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr87REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr88REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr89REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr90REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr91REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr92REQUIRES_VIOLATION [2021-11-07 02:06:30,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr93REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr94REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr95REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr96REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr97REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr98REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr99REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr100REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr101REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr102REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr103REQUIRES_VIOLATION [2021-11-07 02:06:30,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr104REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr105REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr106REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr107REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr108REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr109REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr110REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr111REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr112REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr113REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr114REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr115REQUIRES_VIOLATION [2021-11-07 02:06:30,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr116REQUIRES_VIOLATION [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr117REQUIRES_VIOLATION [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr118ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr119ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr120ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr121ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr122ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr123ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr124REQUIRES_VIOLATION [2021-11-07 02:06:30,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr125REQUIRES_VIOLATION [2021-11-07 02:06:30,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr126ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr127ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr128ASSERT_VIOLATIONMEMORY_FREE [2021-11-07 02:06:30,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr129REQUIRES_VIOLATION [2021-11-07 02:06:30,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr130REQUIRES_VIOLATION [2021-11-07 02:06:30,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr131ASSERT_VIOLATIONMEMORY_LEAK [2021-11-07 02:06:30,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:31,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:31,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-07 02:06:31,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:06:31,491 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:06:31,495 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:06:31,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:06:31 BoogieIcfgContainer [2021-11-07 02:06:31,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:06:31,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:06:31,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:06:31,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:06:31,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:04:09" (3/4) ... [2021-11-07 02:06:31,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:06:31,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:06:31,514 INFO L168 Benchmark]: Toolchain (without parser) took 144240.98 ms. Allocated memory was 52.4 MB in the beginning and 488.6 MB in the end (delta: 436.2 MB). Free memory was 26.8 MB in the beginning and 432.1 MB in the end (delta: -405.3 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:31,514 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 52.4 MB. Free memory was 31.7 MB in the beginning and 31.7 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:06:31,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.43 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 26.6 MB in the beginning and 35.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:31,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.28 ms. Allocated memory is still 65.0 MB. Free memory was 35.6 MB in the beginning and 32.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:31,515 INFO L168 Benchmark]: Boogie Preprocessor took 71.32 ms. Allocated memory is still 65.0 MB. Free memory was 32.9 MB in the beginning and 46.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:31,516 INFO L168 Benchmark]: RCFGBuilder took 1620.97 ms. Allocated memory is still 65.0 MB. Free memory was 46.0 MB in the beginning and 39.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:31,516 INFO L168 Benchmark]: TraceAbstraction took 141776.69 ms. Allocated memory was 65.0 MB in the beginning and 488.6 MB in the end (delta: 423.6 MB). Free memory was 38.9 MB in the beginning and 432.4 MB in the end (delta: -393.6 MB). Peak memory consumption was 291.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:06:31,517 INFO L168 Benchmark]: Witness Printer took 4.24 ms. Allocated memory is still 488.6 MB. Free memory was 432.4 MB in the beginning and 432.1 MB in the end (delta: 322.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:06:31,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 52.4 MB. Free memory was 31.7 MB in the beginning and 31.7 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 652.43 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 26.6 MB in the beginning and 35.7 MB in the end (delta: -9.0 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.28 ms. Allocated memory is still 65.0 MB. Free memory was 35.6 MB in the beginning and 32.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.32 ms. Allocated memory is still 65.0 MB. Free memory was 32.9 MB in the beginning and 46.0 MB in the end (delta: -13.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1620.97 ms. Allocated memory is still 65.0 MB. Free memory was 46.0 MB in the beginning and 39.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 141776.69 ms. Allocated memory was 65.0 MB in the beginning and 488.6 MB in the end (delta: 423.6 MB). Free memory was 38.9 MB in the beginning and 432.4 MB in the end (delta: -393.6 MB). Peak memory consumption was 291.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.24 ms. Allocated memory is still 488.6 MB. Free memory was 432.4 MB in the beginning and 432.1 MB in the end (delta: 322.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L597] struct node_t *list = ((void *)0); [L598] int dataNotFinished = 0; [L587] struct node_t *node = malloc(sizeof *node); [L588] EXPR \read(**pointerToList) [L588] node->next = *pointerToList [L589] EXPR \read(**pointerToList) [L589] COND TRUE *pointerToList == ((void *)0) [L552] prevData != ((void *)0) && prevData->hasNextPartReference [L552] COND FALSE !(prevData != ((void *)0) && prevData->hasNextPartReference) [L555] Data data = malloc(sizeof *data); [L556] data->array = (int*) malloc(20 * sizeof(data->array)) [L557] int counter = 0; [L558] counter = 0 [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() [L558] counter++ [L558] COND TRUE counter < 20 [L559] EXPR data->array [L559] data->array[counter] = __VERIFIER_nondet_int() - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 589]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 589]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 561]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 561]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 569]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 569]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 571]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 571]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 572]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 572]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 574]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 574]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 590]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 552]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 553]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 556]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 561]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 561]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 564]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 569]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 569]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 570]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 571]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 571]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 572]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 572]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 573]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 574]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 574]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 575]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 577]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 592]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 601]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 603]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 603]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 604]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 604]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 604]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 604]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 583]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 584]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 606]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 596]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 265 locations, 132 error locations. Started 1 CEGAR loops. OverallTime: 141.6s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 33.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1663 SDtfs, 2830 SDslu, 2593 SDs, 0 SdLazy, 2772 SolverSat, 188 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 28.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 19.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=2, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 572 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 64.3s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 179 ConstructedInterpolants, 8 QuantifiedInterpolants, 1469 SizeOfPredicates, 54 NumberOfNonLiveVariables, 752 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 21 InterpolantComputations, 20 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 02:06:31,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79ed1899-5ca1-4496-901d-e26f21ee9ffe/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN