./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs --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 64bit --witnessprinter.graph.data.programhash ce82bd2068c431a8a58717550c5ca3a1f22bb267 ........................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs --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 64bit --witnessprinter.graph.data.programhash ce82bd2068c431a8a58717550c5ca3a1f22bb267 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:53:57,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:53:57,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:53:57,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:53:57,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:53:57,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:53:57,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:53:57,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:53:57,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:53:58,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:53:58,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:53:58,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:53:58,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:53:58,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:53:58,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:53:58,009 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:53:58,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:53:58,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:53:58,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:53:58,016 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:53:58,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:53:58,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:53:58,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:53:58,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:53:58,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:53:58,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:53:58,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:53:58,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:53:58,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:53:58,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:53:58,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:53:58,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:53:58,032 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:53:58,033 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:53:58,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:53:58,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:53:58,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:53:58,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:53:58,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:53:58,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:53:58,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:53:58,039 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2021-10-16 02:53:58,068 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:53:58,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:53:58,070 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:53:58,070 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:53:58,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:53:58,070 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:53:58,071 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:53:58,071 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:53:58,071 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:53:58,071 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:53:58,072 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:53:58,072 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:53:58,072 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:53:58,073 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:53:58,073 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:53:58,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 02:53:58,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 02:53:58,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:53:58,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:53:58,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:53:58,075 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:53:58,075 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-16 02:53:58,075 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-16 02:53:58,075 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-16 02:53:58,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:53:58,076 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:53:58,076 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:53:58,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:53:58,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:53:58,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:53:58,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:53:58,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:53:58,077 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:53:58,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:53:58,078 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:53:58,078 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:53:58,078 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_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce82bd2068c431a8a58717550c5ca3a1f22bb267 [2021-10-16 02:53:58,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:53:58,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:53:58,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:53:58,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:53:58,368 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:53:58,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-10-16 02:53:58,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data/6df8ce365/6c267129227e417ebfbf5bdb90926960/FLAG9868f9861 [2021-10-16 02:53:59,268 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:53:59,269 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-10-16 02:53:59,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data/6df8ce365/6c267129227e417ebfbf5bdb90926960/FLAG9868f9861 [2021-10-16 02:53:59,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data/6df8ce365/6c267129227e417ebfbf5bdb90926960 [2021-10-16 02:53:59,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:53:59,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:53:59,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:53:59,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:53:59,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:53:59,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:53:59" (1/1) ... [2021-10-16 02:53:59,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64dcf6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:59, skipping insertion in model container [2021-10-16 02:53:59,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:53:59" (1/1) ... [2021-10-16 02:53:59,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:53:59,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:54:00,395 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-10-16 02:54:00,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:54:00,483 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-16 02:54:00,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@331ca13a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:00, skipping insertion in model container [2021-10-16 02:54:00,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:54:00,485 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:54:00,488 INFO L168 Benchmark]: Toolchain (without parser) took 1059.88 ms. Allocated memory is still 100.7 MB. Free memory was 64.8 MB in the beginning and 65.2 MB in the end (delta: -384.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:00,489 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:54:00,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1052.45 ms. Allocated memory is still 100.7 MB. Free memory was 64.6 MB in the beginning and 65.2 MB in the end (delta: -575.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:00,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1052.45 ms. Allocated memory is still 100.7 MB. Free memory was 64.6 MB in the beginning and 65.2 MB in the end (delta: -575.5 kB). 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: 1515]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:54:03,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:54:03,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:54:03,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:54:03,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:54:03,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:54:03,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:54:03,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:54:03,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:54:03,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:54:03,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:54:03,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:54:03,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:54:03,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:54:03,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:54:03,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:54:03,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:54:03,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:54:03,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:54:03,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:54:03,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:54:03,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:54:03,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:54:03,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:54:03,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:54:03,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:54:03,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:54:03,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:54:03,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:54:03,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:54:03,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:54:03,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:54:03,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:54:03,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:54:03,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:54:03,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:54:03,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:54:03,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:54:03,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:54:03,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:54:03,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:54:03,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2021-10-16 02:54:03,650 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:54:03,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:54:03,657 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:54:03,657 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:54:03,657 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:54:03,658 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:54:03,658 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:54:03,658 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:54:03,659 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:54:03,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 02:54:03,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 02:54:03,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:54:03,663 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-16 02:54:03,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:54:03,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:54:03,663 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-16 02:54:03,664 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-16 02:54:03,664 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-16 02:54:03,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:54:03,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:54:03,665 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:54:03,665 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:54:03,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:54:03,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:54:03,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:54:03,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:54:03,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:54:03,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:54:03,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:54:03,667 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:54:03,668 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:54:03,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:54:03,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:54:03,669 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_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce82bd2068c431a8a58717550c5ca3a1f22bb267 [2021-10-16 02:54:04,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:54:04,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:54:04,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:54:04,146 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:54:04,147 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:54:04,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-10-16 02:54:04,218 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data/c79463375/13bb21e84451443594246b93a479d245/FLAGed0c332b8 [2021-10-16 02:54:04,980 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:54:04,986 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-10-16 02:54:05,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data/c79463375/13bb21e84451443594246b93a479d245/FLAGed0c332b8 [2021-10-16 02:54:05,115 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/data/c79463375/13bb21e84451443594246b93a479d245 [2021-10-16 02:54:05,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:54:05,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:54:05,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:54:05,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:54:05,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:54:05,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:54:05" (1/1) ... [2021-10-16 02:54:05,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16944260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:05, skipping insertion in model container [2021-10-16 02:54:05,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:54:05" (1/1) ... [2021-10-16 02:54:05,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:54:05,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:54:05,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-10-16 02:54:05,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:54:05,990 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:54:06,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:54:06,089 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-10-16 02:54:06,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:54:06,134 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:54:06,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-10-16 02:54:06,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:54:06,360 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:54:06,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06 WrapperNode [2021-10-16 02:54:06,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:54:06,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:54:06,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:54:06,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:54:06,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:54:06,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:54:06,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:54:06,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:54:06,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:54:06,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:54:06,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:54:06,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:54:06,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (1/1) ... [2021-10-16 02:54:06,705 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:54:06,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:54:06,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:54:06,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:54:06,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-10-16 02:54:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:54:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:54:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-16 02:54:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-10-16 02:54:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:54:06,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-16 02:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-16 02:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-10-16 02:54:06,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-16 02:54:06,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:54:06,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:54:08,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:54:08,634 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-16 02:54:08,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:08 BoogieIcfgContainer [2021-10-16 02:54:08,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:54:08,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:54:08,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:54:08,647 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:54:08,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:54:05" (1/3) ... [2021-10-16 02:54:08,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7083271b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:54:08, skipping insertion in model container [2021-10-16 02:54:08,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:06" (2/3) ... [2021-10-16 02:54:08,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7083271b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:54:08, skipping insertion in model container [2021-10-16 02:54:08,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:08" (3/3) ... [2021-10-16 02:54:08,655 INFO L111 eAbstractionObserver]: Analyzing ICFG basename-2.i [2021-10-16 02:54:08,662 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:54:08,663 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 94 error locations. [2021-10-16 02:54:08,730 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:54:08,752 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, mConcurrency=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 [2021-10-16 02:54:08,758 INFO L340 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2021-10-16 02:54:08,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 146 states have (on average 1.9589041095890412) internal successors, (286), 240 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) [2021-10-16 02:54:08,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:54:08,803 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:08,804 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:54:08,805 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 90 more)] === [2021-10-16 02:54:08,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:08,812 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-10-16 02:54:08,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:54:08,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216407463] [2021-10-16 02:54:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:08,834 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:54:08,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:54:08,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:54:08,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:54:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:09,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:54:09,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:09,324 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 [2021-10-16 02:54:09,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:09,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:09,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:09,406 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:54:09,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216407463] [2021-10-16 02:54:09,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216407463] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:54:09,408 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:54:09,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:54:09,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741861457] [2021-10-16 02:54:09,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:54:09,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:54:09,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:54:09,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:54:09,447 INFO L87 Difference]: Start difference. First operand has 241 states, 146 states have (on average 1.9589041095890412) internal successors, (286), 240 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-10-16 02:54:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:54:10,026 INFO L93 Difference]: Finished difference Result 255 states and 290 transitions. [2021-10-16 02:54:10,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:54:10,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-10-16 02:54:10,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:54:10,052 INFO L225 Difference]: With dead ends: 255 [2021-10-16 02:54:10,052 INFO L226 Difference]: Without dead ends: 253 [2021-10-16 02:54:10,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:54:10,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-16 02:54:10,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 237. [2021-10-16 02:54:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 145 states have (on average 1.8689655172413793) internal successors, (271), 236 states have internal predecessors, (271), 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) [2021-10-16 02:54:10,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 271 transitions. [2021-10-16 02:54:10,143 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 271 transitions. Word has length 3 [2021-10-16 02:54:10,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:54:10,144 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 271 transitions. [2021-10-16 02:54:10,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-10-16 02:54:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 271 transitions. [2021-10-16 02:54:10,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-16 02:54:10,144 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:10,145 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-16 02:54:10,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:54:10,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:54:10,363 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 90 more)] === [2021-10-16 02:54:10,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:10,364 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-10-16 02:54:10,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:54:10,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1416450924] [2021-10-16 02:54:10,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:10,367 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:54:10,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:54:10,368 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:54:10,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:54:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:10,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:54:10,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:10,665 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 [2021-10-16 02:54:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:10,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:10,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:10,789 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:54:10,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1416450924] [2021-10-16 02:54:10,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1416450924] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:54:10,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:54:10,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:54:10,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491711869] [2021-10-16 02:54:10,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:54:10,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:54:10,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:54:10,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:54:10,796 INFO L87 Difference]: Start difference. First operand 237 states and 271 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-10-16 02:54:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:54:12,053 INFO L93 Difference]: Finished difference Result 236 states and 270 transitions. [2021-10-16 02:54:12,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:54:12,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 3 [2021-10-16 02:54:12,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:54:12,058 INFO L225 Difference]: With dead ends: 236 [2021-10-16 02:54:12,058 INFO L226 Difference]: Without dead ends: 236 [2021-10-16 02:54:12,059 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:54:12,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-10-16 02:54:12,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-10-16 02:54:12,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 145 states have (on average 1.8620689655172413) internal successors, (270), 235 states have internal predecessors, (270), 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) [2021-10-16 02:54:12,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 270 transitions. [2021-10-16 02:54:12,091 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 270 transitions. Word has length 3 [2021-10-16 02:54:12,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:54:12,092 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 270 transitions. [2021-10-16 02:54:12,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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) [2021-10-16 02:54:12,094 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 270 transitions. [2021-10-16 02:54:12,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:54:12,095 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:12,096 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:54:12,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:54:12,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:54:12,313 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 90 more)] === [2021-10-16 02:54:12,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:12,314 INFO L82 PathProgramCache]: Analyzing trace with hash 889446313, now seen corresponding path program 1 times [2021-10-16 02:54:12,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:54:12,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901130262] [2021-10-16 02:54:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:12,316 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:54:12,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:54:12,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:54:12,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:54:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:12,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:54:12,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:12,608 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 [2021-10-16 02:54:12,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:12,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:13,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:54:13,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901130262] [2021-10-16 02:54:13,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [901130262] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:54:13,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:54:13,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-16 02:54:13,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54842441] [2021-10-16 02:54:13,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:54:13,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:54:13,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:54:13,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:54:13,024 INFO L87 Difference]: Start difference. First operand 236 states and 270 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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) [2021-10-16 02:54:14,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:54:14,525 INFO L93 Difference]: Finished difference Result 249 states and 284 transitions. [2021-10-16 02:54:14,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:54:14,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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 6 [2021-10-16 02:54:14,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:54:14,529 INFO L225 Difference]: With dead ends: 249 [2021-10-16 02:54:14,529 INFO L226 Difference]: Without dead ends: 249 [2021-10-16 02:54:14,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 192.2ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:54:14,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-16 02:54:14,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 242. [2021-10-16 02:54:14,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 151 states have (on average 1.8344370860927153) internal successors, (277), 241 states have internal predecessors, (277), 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) [2021-10-16 02:54:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 277 transitions. [2021-10-16 02:54:14,542 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 277 transitions. Word has length 6 [2021-10-16 02:54:14,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:54:14,542 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 277 transitions. [2021-10-16 02:54:14,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 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) [2021-10-16 02:54:14,543 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 277 transitions. [2021-10-16 02:54:14,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:54:14,543 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:14,544 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:54:14,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:54:14,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:54:14,758 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 90 more)] === [2021-10-16 02:54:14,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:14,759 INFO L82 PathProgramCache]: Analyzing trace with hash 462405445, now seen corresponding path program 1 times [2021-10-16 02:54:14,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:54:14,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246307250] [2021-10-16 02:54:14,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:14,761 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:54:14,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:54:14,762 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:54:14,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:54:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:14,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:54:14,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:15,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:15,081 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:54:15,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246307250] [2021-10-16 02:54:15,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246307250] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:54:15,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [26271650] [2021-10-16 02:54:15,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:15,083 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:54:15,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:54:15,088 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:54:15,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-10-16 02:54:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:15,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:54:15,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:15,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:15,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:15,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [26271650] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:54:15,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161654847] [2021-10-16 02:54:15,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:15,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:54:15,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:54:15,675 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:54:15,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-16 02:54:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:15,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:54:15,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:15,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:15,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:15,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161654847] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:54:15,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:54:15,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 6 [2021-10-16 02:54:15,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405460043] [2021-10-16 02:54:15,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:54:15,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:54:15,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:54:15,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:54:15,934 INFO L87 Difference]: Start difference. First operand 242 states and 277 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-16 02:54:16,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:54:16,023 INFO L93 Difference]: Finished difference Result 250 states and 284 transitions. [2021-10-16 02:54:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:54:16,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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 [2021-10-16 02:54:16,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:54:16,030 INFO L225 Difference]: With dead ends: 250 [2021-10-16 02:54:16,030 INFO L226 Difference]: Without dead ends: 250 [2021-10-16 02:54:16,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.8ms TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:54:16,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-16 02:54:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 249. [2021-10-16 02:54:16,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 158 states have (on average 1.7974683544303798) internal successors, (284), 248 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) [2021-10-16 02:54:16,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 284 transitions. [2021-10-16 02:54:16,059 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 284 transitions. Word has length 11 [2021-10-16 02:54:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:54:16,059 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 284 transitions. [2021-10-16 02:54:16,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 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) [2021-10-16 02:54:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 284 transitions. [2021-10-16 02:54:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 02:54:16,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:16,061 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-16 02:54:16,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:54:16,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-16 02:54:16,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:54:16,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:54:16,675 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 90 more)] === [2021-10-16 02:54:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:16,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1609221679, now seen corresponding path program 1 times [2021-10-16 02:54:16,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:54:16,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358683686] [2021-10-16 02:54:16,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:16,677 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:54:16,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:54:16,678 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:54:16,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:54:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:16,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:54:16,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:16,916 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 [2021-10-16 02:54:17,185 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:17,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:18,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:54:18,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358683686] [2021-10-16 02:54:18,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358683686] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:54:18,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [652419501] [2021-10-16 02:54:18,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:18,005 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:54:18,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:54:18,020 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:54:18,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-16 02:54:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:18,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:54:18,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:18,506 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 [2021-10-16 02:54:18,690 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:18,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:19,078 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:19,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [652419501] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:54:19,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429254441] [2021-10-16 02:54:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:19,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:54:19,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:54:19,080 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:54:19,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-16 02:54:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:19,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 02:54:19,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:19,325 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 [2021-10-16 02:54:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:19,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:19,841 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:19,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429254441] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:54:19,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:54:19,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-16 02:54:19,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785351064] [2021-10-16 02:54:19,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 02:54:19,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:54:19,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 02:54:19,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:54:19,844 INFO L87 Difference]: Start difference. First operand 249 states and 284 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 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) [2021-10-16 02:54:23,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:54:23,277 INFO L93 Difference]: Finished difference Result 252 states and 286 transitions. [2021-10-16 02:54:23,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:54:23,279 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 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 14 [2021-10-16 02:54:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:54:23,281 INFO L225 Difference]: With dead ends: 252 [2021-10-16 02:54:23,281 INFO L226 Difference]: Without dead ends: 252 [2021-10-16 02:54:23,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 744.5ms TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-10-16 02:54:23,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-16 02:54:23,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-10-16 02:54:23,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 162 states have (on average 1.7654320987654322) internal successors, (286), 251 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) [2021-10-16 02:54:23,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 286 transitions. [2021-10-16 02:54:23,290 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 286 transitions. Word has length 14 [2021-10-16 02:54:23,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:54:23,290 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 286 transitions. [2021-10-16 02:54:23,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 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) [2021-10-16 02:54:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 286 transitions. [2021-10-16 02:54:23,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-16 02:54:23,292 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:23,292 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:54:23,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:54:23,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-16 02:54:23,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-10-16 02:54:23,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:54:23,897 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 90 more)] === [2021-10-16 02:54:23,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:23,898 INFO L82 PathProgramCache]: Analyzing trace with hash -406298695, now seen corresponding path program 2 times [2021-10-16 02:54:23,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:54:23,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520395071] [2021-10-16 02:54:23,899 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:54:23,899 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:54:23,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:54:23,901 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:54:23,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 02:54:24,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-16 02:54:24,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:54:24,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:54:24,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:25,419 INFO L354 Elim1Store]: treesize reduction 1467, result has 7.4 percent of original size [2021-10-16 02:54:25,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 11 case distinctions, treesize of input 969 treesize of output 1020 [2021-10-16 02:54:40,341 INFO L354 Elim1Store]: treesize reduction 535, result has 29.3 percent of original size [2021-10-16 02:54:40,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 78 case distinctions, treesize of input 182 treesize of output 378 [2021-10-16 02:57:04,617 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-16 02:57:04,618 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:57:04,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520395071] [2021-10-16 02:57:04,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-10-16 02:57:04,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-10-16 02:57:04,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1149368654] [2021-10-16 02:57:04,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:57:04,621 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:57:04,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:57:04,625 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:57:04,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-10-16 02:57:05,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-16 02:57:05,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:57:05,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:57:05,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:57:05,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-16 02:57:05,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490191696] [2021-10-16 02:57:05,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:57:05,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:57:05,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:57:05,445 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:57:05,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-16 02:57:05,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-16 02:57:05,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:57:05,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:57:05,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:57:05,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-10-16 02:57:05,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:57:05,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-16 02:57:05,787 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-16 02:57:05,787 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-16 02:57:05,796 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION [2021-10-16 02:57:05,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION [2021-10-16 02:57:05,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION [2021-10-16 02:57:05,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION [2021-10-16 02:57:05,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION [2021-10-16 02:57:05,800 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION [2021-10-16 02:57:05,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION [2021-10-16 02:57:05,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION [2021-10-16 02:57:05,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION [2021-10-16 02:57:05,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION [2021-10-16 02:57:05,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION [2021-10-16 02:57:05,801 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION [2021-10-16 02:57:05,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION [2021-10-16 02:57:05,802 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION [2021-10-16 02:57:05,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION [2021-10-16 02:57:05,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION [2021-10-16 02:57:05,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION [2021-10-16 02:57:05,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION [2021-10-16 02:57:05,806 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION [2021-10-16 02:57:05,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION [2021-10-16 02:57:05,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION [2021-10-16 02:57:05,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION [2021-10-16 02:57:05,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION [2021-10-16 02:57:05,807 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION [2021-10-16 02:57:05,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION [2021-10-16 02:57:05,808 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION [2021-10-16 02:57:05,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION [2021-10-16 02:57:05,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION [2021-10-16 02:57:05,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION [2021-10-16 02:57:05,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION [2021-10-16 02:57:05,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION [2021-10-16 02:57:05,809 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION [2021-10-16 02:57:05,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION [2021-10-16 02:57:05,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION [2021-10-16 02:57:05,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION [2021-10-16 02:57:05,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION [2021-10-16 02:57:05,810 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION [2021-10-16 02:57:05,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION [2021-10-16 02:57:05,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 02:57:05,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION [2021-10-16 02:57:05,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION [2021-10-16 02:57:05,811 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION [2021-10-16 02:57:05,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION [2021-10-16 02:57:05,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49REQUIRES_VIOLATION [2021-10-16 02:57:05,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50REQUIRES_VIOLATION [2021-10-16 02:57:05,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION [2021-10-16 02:57:05,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54REQUIRES_VIOLATION [2021-10-16 02:57:05,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION [2021-10-16 02:57:05,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION [2021-10-16 02:57:05,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57REQUIRES_VIOLATION [2021-10-16 02:57:05,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58REQUIRES_VIOLATION [2021-10-16 02:57:05,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59REQUIRES_VIOLATION [2021-10-16 02:57:05,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60REQUIRES_VIOLATION [2021-10-16 02:57:05,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,815 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63REQUIRES_VIOLATION [2021-10-16 02:57:05,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr64REQUIRES_VIOLATION [2021-10-16 02:57:05,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr65REQUIRES_VIOLATION [2021-10-16 02:57:05,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr66REQUIRES_VIOLATION [2021-10-16 02:57:05,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr67ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,816 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,818 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr69ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr70ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr71REQUIRES_VIOLATION [2021-10-16 02:57:05,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr72REQUIRES_VIOLATION [2021-10-16 02:57:05,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr73ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_DEREFERENCE [2021-10-16 02:57:05,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr75REQUIRES_VIOLATION [2021-10-16 02:57:05,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr76REQUIRES_VIOLATION [2021-10-16 02:57:05,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr77REQUIRES_VIOLATION [2021-10-16 02:57:05,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr78REQUIRES_VIOLATION [2021-10-16 02:57:05,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr79REQUIRES_VIOLATION [2021-10-16 02:57:05,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr80REQUIRES_VIOLATION [2021-10-16 02:57:05,821 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,828 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr84ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr86ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr87ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr88ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,829 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr90ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr91ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr92ASSERT_VIOLATIONMEMORY_FREE [2021-10-16 02:57:05,830 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr93ASSERT_VIOLATIONMEMORY_LEAK [2021-10-16 02:57:05,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:57:06,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-16 02:57:06,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:57:06,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31e3cf3b-2c68-4e8e-9e8d-4065f535d25b/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:57:06,454 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:57:06,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:57:06 BoogieIcfgContainer [2021-10-16 02:57:06,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:57:06,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:57:06,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:57:06,468 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:57:06,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:08" (3/4) ... [2021-10-16 02:57:06,471 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:57:06,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:57:06,472 INFO L168 Benchmark]: Toolchain (without parser) took 181349.28 ms. Allocated memory was 54.5 MB in the beginning and 243.3 MB in the end (delta: 188.7 MB). Free memory was 29.8 MB in the beginning and 203.4 MB in the end (delta: -173.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:06,473 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:57:06,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1236.48 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.7 MB in the beginning and 34.4 MB in the end (delta: -4.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:06,474 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.82 ms. Allocated memory is still 67.1 MB. Free memory was 34.4 MB in the beginning and 29.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:06,474 INFO L168 Benchmark]: Boogie Preprocessor took 152.52 ms. Allocated memory is still 67.1 MB. Free memory was 29.9 MB in the beginning and 24.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:06,475 INFO L168 Benchmark]: RCFGBuilder took 1965.71 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 24.7 MB in the beginning and 56.3 MB in the end (delta: -31.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:06,475 INFO L168 Benchmark]: TraceAbstraction took 177823.56 ms. Allocated memory was 90.2 MB in the beginning and 243.3 MB in the end (delta: 153.1 MB). Free memory was 56.0 MB in the beginning and 203.4 MB in the end (delta: -147.5 MB). Peak memory consumption was 145.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:57:06,475 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 243.3 MB. Free memory is still 203.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:57:06,478 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.7 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1236.48 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.7 MB in the beginning and 34.4 MB in the end (delta: -4.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 141.82 ms. Allocated memory is still 67.1 MB. Free memory was 34.4 MB in the beginning and 29.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 152.52 ms. Allocated memory is still 67.1 MB. Free memory was 29.9 MB in the beginning and 24.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1965.71 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 24.7 MB in the beginning and 56.3 MB in the end (delta: -31.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 177823.56 ms. Allocated memory was 90.2 MB in the beginning and 243.3 MB in the end (delta: 153.1 MB). Free memory was 56.0 MB in the beginning and 203.4 MB in the end (delta: -147.5 MB). Peak memory consumption was 145.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.34 ms. Allocated memory is still 243.3 MB. Free memory is still 203.4 MB. 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1599]: 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: [L1318] static const char *applet_name; [L1319] static signed int bb_errno_location; [L1320] static signed int * const bb_errno = &bb_errno_location; [L1512] static struct utmp dummy_utmp; [L1594] char *a = malloc(11); [L1595] a[10] = 0 [L1596] int i=0; [L1596] COND TRUE i<10 [L1597] a[i]=__VERIFIER_nondet_char() [L1596] ++i [L1596] COND TRUE i<10 [L1597] a[i]=__VERIFIER_nondet_char() [L1596] ++i [L1596] COND TRUE i<10 [L1597] a[i]=__VERIFIER_nondet_char() [L1596] ++i [L1596] COND TRUE i<10 [L1597] a[i]=__VERIFIER_nondet_char() [L1596] ++i [L1596] COND TRUE i<10 [L1597] a[i]=__VERIFIER_nondet_char() [L1596] ++i [L1596] COND FALSE !(i<10) [L1598] applet_name = a [L1599] bb_errno_location = __VERIFIER_nondet_int() - UnprovableResult [Line: 1595]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1595]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1597]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1597]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1599]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1605]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1608]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1608]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1609]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1609]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1609]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1609]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1610]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1610]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1610]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1610]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1612]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1612]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1612]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1612]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1334]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1334]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1342]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1342]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1354]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1354]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1356]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1356]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1356]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1356]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1361]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1361]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1361]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1361]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1366]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1366]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1366]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1366]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1371]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1383]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1396]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1396]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1484]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1484]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1488]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1488]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1491]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1491]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1447]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1447]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1447]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1447]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1432]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1432]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1397]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1397]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1400]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1400]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1402]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1402]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1402]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1402]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1408]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1416]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1416]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1505]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1505]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1616]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1616]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1616]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1616]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1616]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1617]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1617]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1617]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1618]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1618]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1618]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1619]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1619]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1619]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1592]: 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, 241 locations, 94 error locations. Started 1 CEGAR loops. OverallTime: 177723.0ms, OverallIterations: 6, TraceHistogramMax: 5, EmptinessCheckTime: 22.3ms, AutomataDifference: 6946.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1238 SDtfs, 408 SDslu, 1942 SDs, 0 SdLazy, 879 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5723.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 136 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1055.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 151.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 150.6ms SsaConstructionTime, 1167.9ms SatisfiabilityAnalysisTime, 3393.0ms InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 1340 SizeOfPredicates, 3 NumberOfNonLiveVariables, 987 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 0/54 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 Received shutdown request...