./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/touch-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/touch-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 3b999e0c8863a6185ab353b93e4a13998fea5fc296976dddb4afe11519346af5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:26,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:26,466 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-19 05:15:26,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:26,473 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:26,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:26,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:26,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:26,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:26,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:26,506 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:26,506 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:26,507 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:26,508 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:15:26,509 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:26,509 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:26,510 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:15:26,511 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:15:26,511 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:26,512 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:15:26,513 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:15:26,513 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:15:26,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:15:26,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:15:26,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:26,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:15:26,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:26,517 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:15:26,518 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:15:26,519 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:15:26,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:26,520 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:15:26,520 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:15:26,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:26,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:26,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:26,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:26,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:26,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:26,524 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:15:26,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:15:26,526 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:26,526 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:26,526 INFO L153 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_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b999e0c8863a6185ab353b93e4a13998fea5fc296976dddb4afe11519346af5 [2023-11-19 05:15:26,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:26,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:26,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:26,875 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:26,876 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:26,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/busybox-1.22.0/touch-2.i [2023-11-19 05:15:30,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:15:30,616 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:15:30,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/sv-benchmarks/c/busybox-1.22.0/touch-2.i [2023-11-19 05:15:30,652 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/data/8233f9b28/03b32cd180554791a7c96411a68ebe87/FLAG4295ce50b [2023-11-19 05:15:30,667 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/data/8233f9b28/03b32cd180554791a7c96411a68ebe87 [2023-11-19 05:15:30,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:15:30,672 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:15:30,673 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:30,673 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:15:30,679 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:15:30,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10edd06f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:30, skipping insertion in model container [2023-11-19 05:15:30,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:30" (1/1) ... [2023-11-19 05:15:30,840 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:32,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:32,834 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 05:15:32,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@676a83bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:32, skipping insertion in model container [2023-11-19 05:15:32,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:32,836 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:15:32,838 INFO L158 Benchmark]: Toolchain (without parser) took 2165.18ms. Allocated memory is still 163.6MB. Free memory was 93.5MB in the beginning and 89.9MB in the end (delta: 3.6MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-19 05:15:32,839 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:32,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2162.65ms. Allocated memory is still 163.6MB. Free memory was 93.3MB in the beginning and 89.9MB in the end (delta: 3.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-19 05:15:32,841 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 123.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2162.65ms. Allocated memory is still 163.6MB. Free memory was 93.3MB in the beginning and 89.9MB in the end (delta: 3.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2550]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/touch-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 3b999e0c8863a6185ab353b93e4a13998fea5fc296976dddb4afe11519346af5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:15:35,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:15:35,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-19 05:15:35,429 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:15:35,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:15:35,481 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:15:35,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:15:35,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:15:35,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:15:35,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:15:35,489 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:15:35,489 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:15:35,490 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:15:35,492 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:15:35,492 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:15:35,493 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:15:35,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:15:35,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:15:35,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:15:35,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:15:35,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:15:35,497 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:15:35,498 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:15:35,498 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:15:35,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:15:35,499 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:15:35,499 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:15:35,500 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:15:35,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:15:35,501 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:15:35,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:15:35,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:15:35,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:15:35,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:35,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:15:35,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:15:35,505 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:15:35,505 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:15:35,506 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:15:35,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:15:35,506 INFO L153 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_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b999e0c8863a6185ab353b93e4a13998fea5fc296976dddb4afe11519346af5 [2023-11-19 05:15:35,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:15:35,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:15:35,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:15:35,924 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:15:35,925 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:15:35,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/busybox-1.22.0/touch-2.i [2023-11-19 05:15:39,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:15:39,704 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:15:39,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/sv-benchmarks/c/busybox-1.22.0/touch-2.i [2023-11-19 05:15:39,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/data/02f4eef31/d0f999c2a2b645b39a35ebd0c9b7b642/FLAG01df109df [2023-11-19 05:15:39,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/data/02f4eef31/d0f999c2a2b645b39a35ebd0c9b7b642 [2023-11-19 05:15:39,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:15:39,779 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:15:39,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:39,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:15:39,788 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:15:39,791 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:39" (1/1) ... [2023-11-19 05:15:39,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fe2e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:39, skipping insertion in model container [2023-11-19 05:15:39,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:15:39" (1/1) ... [2023-11-19 05:15:39,934 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:41,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:41,771 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 05:15:41,828 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:15:42,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:42,087 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:15:42,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:15:42,620 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,621 WARN L675 CHandler]: The function localtime is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,621 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,621 WARN L675 CHandler]: The function mktime is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,625 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,626 WARN L675 CHandler]: The function strtoll is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,626 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,626 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,626 WARN L675 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:15:42,635 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:15:42,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42 WrapperNode [2023-11-19 05:15:42,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:15:42,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:42,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:15:42,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:15:42,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:42,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:42,887 INFO L138 Inliner]: procedures = 683, calls = 747, calls flagged for inlining = 38, calls inlined = 37, statements flattened = 2397 [2023-11-19 05:15:42,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:15:42,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:15:42,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:15:42,889 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:15:42,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:42,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:42,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:42,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:43,047 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:43,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:43,108 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:43,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:43,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:15:43,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:15:43,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:15:43,164 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:15:43,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (1/1) ... [2023-11-19 05:15:43,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:15:43,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:43,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:15:43,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:15:43,244 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-19 05:15:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure localtime [2023-11-19 05:15:43,245 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 05:15:43,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:15:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:15:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:15:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2023-11-19 05:15:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2023-11-19 05:15:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 05:15:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 05:15:43,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-11-19 05:15:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure mktime [2023-11-19 05:15:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:15:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 05:15:43,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:15:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:15:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-19 05:15:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 05:15:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 05:15:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure utimes [2023-11-19 05:15:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure utimes [2023-11-19 05:15:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 05:15:43,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:15:43,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:15:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 05:15:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 05:15:43,252 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 05:15:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-19 05:15:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 05:15:43,252 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 05:15:43,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:15:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:15:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:15:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-19 05:15:43,253 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-19 05:15:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2023-11-19 05:15:43,253 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2023-11-19 05:15:43,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:15:43,253 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:15:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:15:43,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:15:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:15:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:15:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 05:15:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 05:15:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:15:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:15:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 05:15:43,255 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-19 05:15:43,255 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-19 05:15:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2023-11-19 05:15:43,256 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2023-11-19 05:15:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 05:15:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 05:15:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 05:15:43,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-19 05:15:43,257 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-19 05:15:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 05:15:43,258 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 05:15:43,259 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 05:15:43,934 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:15:43,936 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:15:45,210 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 05:16:02,940 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:16:02,962 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:16:02,963 INFO L302 CfgBuilder]: Removed 27 assume(true) statements. [2023-11-19 05:16:02,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:02 BoogieIcfgContainer [2023-11-19 05:16:02,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:16:02,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:16:02,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:16:02,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:16:02,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:15:39" (1/3) ... [2023-11-19 05:16:02,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9a5939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:02, skipping insertion in model container [2023-11-19 05:16:02,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:15:42" (2/3) ... [2023-11-19 05:16:02,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9a5939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:16:02, skipping insertion in model container [2023-11-19 05:16:02,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:16:02" (3/3) ... [2023-11-19 05:16:02,999 INFO L112 eAbstractionObserver]: Analyzing ICFG touch-2.i [2023-11-19 05:16:03,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:16:03,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 913 error locations. [2023-11-19 05:16:03,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:16:03,110 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69baa7ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:16:03,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 913 error locations. [2023-11-19 05:16:03,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 2067 states, 1087 states have (on average 2.0570377184912605) internal successors, (2236), 1999 states have internal predecessors, (2236), 57 states have call successors, (57), 12 states have call predecessors, (57), 12 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2023-11-19 05:16:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:16:03,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:03,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:16:03,130 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [utimesErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, utimesErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, utimesErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 910 more)] === [2023-11-19 05:16:03,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:03,136 INFO L85 PathProgramCache]: Analyzing trace with hash 555154, now seen corresponding path program 1 times [2023-11-19 05:16:03,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:03,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [491077555] [2023-11-19 05:16:03,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:03,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:03,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:03,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:03,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 05:16:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:03,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:16:03,648 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:03,723 INFO L378 Elim1Store]: Elim1 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 7 [2023-11-19 05:16:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:16:03,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:03,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:03,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [491077555] [2023-11-19 05:16:03,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [491077555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:03,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:03,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:16:03,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991973543] [2023-11-19 05:16:03,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:03,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:03,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:03,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:03,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:03,797 INFO L87 Difference]: Start difference. First operand has 2067 states, 1087 states have (on average 2.0570377184912605) internal successors, (2236), 1999 states have internal predecessors, (2236), 57 states have call successors, (57), 12 states have call predecessors, (57), 12 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) 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) [2023-11-19 05:16:13,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:16:13,261 INFO L93 Difference]: Finished difference Result 2213 states and 2482 transitions. [2023-11-19 05:16:13,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:16:13,264 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 [2023-11-19 05:16:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:16:13,290 INFO L225 Difference]: With dead ends: 2213 [2023-11-19 05:16:13,290 INFO L226 Difference]: Without dead ends: 2211 [2023-11-19 05:16:13,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:13,296 INFO L413 NwaCegarLoop]: 2100 mSDtfsCounter, 425 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 3297 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:16:13,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 3297 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-11-19 05:16:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2023-11-19 05:16:13,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2041. [2023-11-19 05:16:13,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2041 states, 1071 states have (on average 2.030812324929972) internal successors, (2175), 1983 states have internal predecessors, (2175), 57 states have call successors, (57), 12 states have call predecessors, (57), 10 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2023-11-19 05:16:13,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2041 states to 2041 states and 2279 transitions. [2023-11-19 05:16:13,479 INFO L78 Accepts]: Start accepts. Automaton has 2041 states and 2279 transitions. Word has length 3 [2023-11-19 05:16:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:16:13,480 INFO L495 AbstractCegarLoop]: Abstraction has 2041 states and 2279 transitions. [2023-11-19 05:16:13,481 INFO L496 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) [2023-11-19 05:16:13,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2041 states and 2279 transitions. [2023-11-19 05:16:13,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:16:13,482 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:16:13,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:16:13,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 05:16:13,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:13,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [utimesErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, utimesErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, utimesErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 910 more)] === [2023-11-19 05:16:13,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:16:13,691 INFO L85 PathProgramCache]: Analyzing trace with hash 555155, now seen corresponding path program 1 times [2023-11-19 05:16:13,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:16:13,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840763686] [2023-11-19 05:16:13,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:16:13,693 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:16:13,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:16:13,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 05:16:13,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db561fc8-d2ae-4193-ac75-3c81ae1ea727/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 05:16:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:16:14,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:16:14,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:16:14,202 INFO L378 Elim1Store]: Elim1 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 [2023-11-19 05:16:14,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:16:14,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:16:14,238 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:16:14,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840763686] [2023-11-19 05:16:14,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840763686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:16:14,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:16:14,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:16:14,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140680397] [2023-11-19 05:16:14,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:16:14,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:16:14,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:16:14,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:16:14,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:16:14,241 INFO L87 Difference]: Start difference. First operand 2041 states and 2279 transitions. 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)