./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/tac-1.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_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tac-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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_6899e548-f337-4305-8549-24c879bd1d20/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 57f38269c4c960187df192acac7fb1cf78f174b0bc0258d373a3e5b5132a13eb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:03,339 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:03,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-19 05:24:03,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:03,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:03,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:03,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:03,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:03,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:03,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:03,508 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:03,509 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:03,510 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:03,512 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:03,512 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:03,513 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:03,513 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:03,514 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:03,514 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:03,515 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:03,515 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:03,516 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:03,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:24:03,517 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:24:03,518 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:03,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:03,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:03,519 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:24:03,519 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:24:03,520 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:24:03,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:03,522 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:24:03,522 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:24:03,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:03,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:03,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:03,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:03,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:03,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:03,524 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:03,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:03,524 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:03,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:03,525 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_6899e548-f337-4305-8549-24c879bd1d20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57f38269c4c960187df192acac7fb1cf78f174b0bc0258d373a3e5b5132a13eb [2023-11-19 05:24:03,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:03,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:03,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:03,878 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:03,878 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:03,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/busybox-1.22.0/tac-1.i [2023-11-19 05:24:06,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:07,463 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:07,464 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/sv-benchmarks/c/busybox-1.22.0/tac-1.i [2023-11-19 05:24:07,503 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/data/3209dbfb1/8b848494033a410c82eecf5633e73dc3/FLAG6b510f9a9 [2023-11-19 05:24:07,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/data/3209dbfb1/8b848494033a410c82eecf5633e73dc3 [2023-11-19 05:24:07,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:07,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:07,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:07,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:07,544 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:07,545 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:07,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376fbd92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:07, skipping insertion in model container [2023-11-19 05:24:07,546 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:07" (1/1) ... [2023-11-19 05:24:07,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:09,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:09,263 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 05:24:09,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@353e7e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:09, skipping insertion in model container [2023-11-19 05:24:09,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:09,264 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 05:24:09,266 INFO L158 Benchmark]: Toolchain (without parser) took 1730.66ms. Allocated memory is still 167.8MB. Free memory was 116.7MB in the beginning and 128.1MB in the end (delta: -11.4MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2023-11-19 05:24:09,268 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:24:09,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1728.53ms. Allocated memory is still 167.8MB. Free memory was 116.4MB in the beginning and 128.1MB in the end (delta: -11.7MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2023-11-19 05:24:09,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1728.53ms. Allocated memory is still 167.8MB. Free memory was 116.4MB in the beginning and 128.1MB in the end (delta: -11.7MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: 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_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tac-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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_6899e548-f337-4305-8549-24c879bd1d20/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 57f38269c4c960187df192acac7fb1cf78f174b0bc0258d373a3e5b5132a13eb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:11,805 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:11,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-19 05:24:11,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:11,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:11,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:11,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:11,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:11,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:11,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:11,994 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:11,994 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:11,995 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:11,996 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:11,997 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:11,997 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:11,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 05:24:11,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 05:24:11,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:12,000 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:12,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:12,002 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 05:24:12,003 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 05:24:12,003 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 05:24:12,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:12,004 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:24:12,004 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:24:12,005 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:24:12,005 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:24:12,005 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:12,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:12,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:24:12,008 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:12,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:12,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:12,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:12,010 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:24:12,010 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:24:12,010 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:12,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:12,011 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_6899e548-f337-4305-8549-24c879bd1d20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57f38269c4c960187df192acac7fb1cf78f174b0bc0258d373a3e5b5132a13eb [2023-11-19 05:24:12,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:12,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:12,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:12,434 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:12,434 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:12,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/busybox-1.22.0/tac-1.i [2023-11-19 05:24:15,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:24:16,156 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:24:16,156 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/sv-benchmarks/c/busybox-1.22.0/tac-1.i [2023-11-19 05:24:16,200 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/data/391e0bee1/d2db032de02d4cf6b3ab62661116a895/FLAG2abb1a14c [2023-11-19 05:24:16,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/data/391e0bee1/d2db032de02d4cf6b3ab62661116a895 [2023-11-19 05:24:16,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:24:16,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:24:16,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:16,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:24:16,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:24:16,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6485a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:16, skipping insertion in model container [2023-11-19 05:24:16,240 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:24:16" (1/1) ... [2023-11-19 05:24:16,346 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:18,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:18,281 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 05:24:18,307 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:24:18,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:18,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:24:18,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:24:18,858 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:24:18,858 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:24:18,858 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:24:18,859 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:24:18,859 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:24:18,867 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:24:18,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18 WrapperNode [2023-11-19 05:24:18,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:24:18,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:18,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:24:18,870 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:24:18,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:18,967 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,092 INFO L138 Inliner]: procedures = 589, calls = 409, calls flagged for inlining = 26, calls inlined = 25, statements flattened = 1492 [2023-11-19 05:24:19,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:24:19,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:24:19,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:24:19,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:24:19,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,267 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:24:19,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:24:19,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:24:19,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:24:19,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (1/1) ... [2023-11-19 05:24:19,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:19,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:19,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:24:19,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:24:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-19 05:24:19,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-19 05:24:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-19 05:24:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-19 05:24:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 05:24:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:24:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:24:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 05:24:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 05:24:19,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 05:24:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-19 05:24:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:24:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 05:24:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:24:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:24:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-19 05:24:19,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 05:24:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 05:24:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 05:24:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:24:19,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:24:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 05:24:19,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 05:24:19,420 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 05:24:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 05:24:19,421 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 05:24:19,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 05:24:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:24:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:24:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-19 05:24:19,422 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-19 05:24:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 05:24:19,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:24:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:24:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:24:19,423 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:24:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:24:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:24:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 05:24:19,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 05:24:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 05:24:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:24:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 05:24:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 05:24:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 05:24:19,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-19 05:24:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure full_write [2023-11-19 05:24:19,425 INFO L138 BoogieDeclarations]: Found implementation of procedure full_write [2023-11-19 05:24:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 05:24:19,425 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 05:24:19,425 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 05:24:20,036 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:24:20,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:24:20,247 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 05:24:31,643 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:24:31,670 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:24:31,671 INFO L302 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-19 05:24:31,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:31 BoogieIcfgContainer [2023-11-19 05:24:31,686 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:24:31,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:24:31,690 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:24:31,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:24:31,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:24:16" (1/3) ... [2023-11-19 05:24:31,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:31, skipping insertion in model container [2023-11-19 05:24:31,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:24:18" (2/3) ... [2023-11-19 05:24:31,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f55767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:24:31, skipping insertion in model container [2023-11-19 05:24:31,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:24:31" (3/3) ... [2023-11-19 05:24:31,699 INFO L112 eAbstractionObserver]: Analyzing ICFG tac-1.i [2023-11-19 05:24:31,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:24:31,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 467 error locations. [2023-11-19 05:24:31,809 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:24:31,822 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;@29324120, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:24:31,822 INFO L358 AbstractCegarLoop]: Starting to check reachability of 467 error locations. [2023-11-19 05:24:31,835 INFO L276 IsEmpty]: Start isEmpty. Operand has 1145 states, 639 states have (on average 2.0156494522691704) internal successors, (1288), 1104 states have internal predecessors, (1288), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-19 05:24:31,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:24:31,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:31,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:24:31,844 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-11-19 05:24:31,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:31,856 INFO L85 PathProgramCache]: Analyzing trace with hash 473728, now seen corresponding path program 1 times [2023-11-19 05:24:31,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:31,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1086026858] [2023-11-19 05:24:31,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:31,875 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 05:24:31,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:31,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:31,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:32,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:24:32,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:32,334 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 05:24:32,363 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 05:24:32,363 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:32,364 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:32,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1086026858] [2023-11-19 05:24:32,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1086026858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:32,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:32,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:24:32,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975714940] [2023-11-19 05:24:32,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:32,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:32,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:32,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:32,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:32,412 INFO L87 Difference]: Start difference. First operand has 1145 states, 639 states have (on average 2.0156494522691704) internal successors, (1288), 1104 states have internal predecessors, (1288), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) 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 05:24:36,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:36,548 INFO L93 Difference]: Finished difference Result 1302 states and 1495 transitions. [2023-11-19 05:24:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:36,551 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 05:24:36,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:36,576 INFO L225 Difference]: With dead ends: 1302 [2023-11-19 05:24:36,576 INFO L226 Difference]: Without dead ends: 1300 [2023-11-19 05:24:36,577 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 05:24:36,581 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 407 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:36,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1804 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-19 05:24:36,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2023-11-19 05:24:36,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1130. [2023-11-19 05:24:36,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 631 states have (on average 1.9587955625990492) internal successors, (1236), 1095 states have internal predecessors, (1236), 31 states have call successors, (31), 10 states have call predecessors, (31), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 05:24:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1292 transitions. [2023-11-19 05:24:36,707 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1292 transitions. Word has length 3 [2023-11-19 05:24:36,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:36,708 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 1292 transitions. [2023-11-19 05:24:36,708 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 05:24:36,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1292 transitions. [2023-11-19 05:24:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:24:36,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:36,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:24:36,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:36,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:36,914 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-11-19 05:24:36,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:36,915 INFO L85 PathProgramCache]: Analyzing trace with hash 473729, now seen corresponding path program 1 times [2023-11-19 05:24:36,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:36,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [388845714] [2023-11-19 05:24:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:36,917 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 05:24:36,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:36,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:36,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:37,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:24:37,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:37,276 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 05:24:37,322 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 05:24:37,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:37,322 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:37,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [388845714] [2023-11-19 05:24:37,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [388845714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:37,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:37,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:24:37,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233947083] [2023-11-19 05:24:37,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:37,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:24:37,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:37,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:24:37,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:24:37,325 INFO L87 Difference]: Start difference. First operand 1130 states and 1292 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) [2023-11-19 05:24:43,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:43,109 INFO L93 Difference]: Finished difference Result 1129 states and 1291 transitions. [2023-11-19 05:24:43,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:24:43,110 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 05:24:43,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:43,118 INFO L225 Difference]: With dead ends: 1129 [2023-11-19 05:24:43,118 INFO L226 Difference]: Without dead ends: 1129 [2023-11-19 05:24:43,118 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 05:24:43,119 INFO L413 NwaCegarLoop]: 1284 mSDtfsCounter, 13 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:43,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2101 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-19 05:24:43,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2023-11-19 05:24:43,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2023-11-19 05:24:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 631 states have (on average 1.9572107765451665) internal successors, (1235), 1094 states have internal predecessors, (1235), 31 states have call successors, (31), 10 states have call predecessors, (31), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 05:24:43,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1291 transitions. [2023-11-19 05:24:43,158 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1291 transitions. Word has length 3 [2023-11-19 05:24:43,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:43,158 INFO L495 AbstractCegarLoop]: Abstraction has 1129 states and 1291 transitions. [2023-11-19 05:24:43,159 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 05:24:43,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1291 transitions. [2023-11-19 05:24:43,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:24:43,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:43,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:24:43,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:43,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:43,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-11-19 05:24:43,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:43,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1228349257, now seen corresponding path program 1 times [2023-11-19 05:24:43,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:43,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [308689446] [2023-11-19 05:24:43,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:43,368 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 05:24:43,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:43,370 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:43,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 (4)] Waiting until timeout for monitored process [2023-11-19 05:24:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:43,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:24:43,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:43,729 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 05:24:43,903 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 05:24:43,903 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:24:43,903 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:43,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [308689446] [2023-11-19 05:24:43,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [308689446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:24:43,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:24:43,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:24:43,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118089148] [2023-11-19 05:24:43,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:24:43,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:24:43,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:43,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:24:43,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:24:43,905 INFO L87 Difference]: Start difference. First operand 1129 states and 1291 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:24:52,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:24:52,223 INFO L93 Difference]: Finished difference Result 1133 states and 1295 transitions. [2023-11-19 05:24:52,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:24:52,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 05:24:52,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:24:52,231 INFO L225 Difference]: With dead ends: 1133 [2023-11-19 05:24:52,231 INFO L226 Difference]: Without dead ends: 1133 [2023-11-19 05:24:52,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:24:52,232 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 14 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2919 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:24:52,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2919 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-19 05:24:52,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2023-11-19 05:24:52,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1131. [2023-11-19 05:24:52,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 633 states have (on average 1.9541864139020537) internal successors, (1237), 1096 states have internal predecessors, (1237), 31 states have call successors, (31), 10 states have call predecessors, (31), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 05:24:52,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1293 transitions. [2023-11-19 05:24:52,269 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1293 transitions. Word has length 6 [2023-11-19 05:24:52,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:24:52,269 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1293 transitions. [2023-11-19 05:24:52,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:24:52,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1293 transitions. [2023-11-19 05:24:52,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 05:24:52,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:24:52,271 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:24:52,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:24:52,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:52,476 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 464 more)] === [2023-11-19 05:24:52,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:24:52,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1890412788, now seen corresponding path program 1 times [2023-11-19 05:24:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:24:52,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16145684] [2023-11-19 05:24:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:52,479 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 05:24:52,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:24:52,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 05:24:52,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/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 (5)] Waiting until timeout for monitored process [2023-11-19 05:24:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:52,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:24:52,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:52,849 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 05:24:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:24:53,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:24:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:24:54,137 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:24:54,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16145684] [2023-11-19 05:24:54,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16145684] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:24:54,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1007494702] [2023-11-19 05:24:54,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:54,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 05:24:54,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/cvc4 [2023-11-19 05:24:54,182 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 05:24:54,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 05:24:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:54,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:24:54,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:54,940 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 05:24:55,237 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:24:55,237 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:24:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:24:55,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1007494702] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:24:55,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649329708] [2023-11-19 05:24:55,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:24:55,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:24:55,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:24:55,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:24:55,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6899e548-f337-4305-8549-24c879bd1d20/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 05:24:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:24:55,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 05:24:55,902 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:24:55,919 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 05:24:56,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:24:56,133 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 05:24:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:24:56,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649329708] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 05:24:56,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-19 05:24:56,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 7 [2023-11-19 05:24:56,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830946041] [2023-11-19 05:24:56,547 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-19 05:24:56,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:24:56,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:24:56,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:24:56,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:24:56,548 INFO L87 Difference]: Start difference. First operand 1131 states and 1293 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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)