./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/cut-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/cut-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5 --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 edd54c5cc2e5bc16faff7edb80304df4d814ad9943251d6ef92f10d221d4751a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:35:14,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:35:14,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-21 19:35:14,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:35:14,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:35:14,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:35:14,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:35:14,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:35:14,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:35:14,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:35:14,710 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:35:14,710 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:35:14,711 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:35:14,713 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:35:14,714 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:35:14,714 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:35:14,715 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:35:14,715 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:35:14,716 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:35:14,717 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:35:14,717 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:35:14,718 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:35:14,719 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:35:14,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:35:14,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:35:14,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:35:14,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:35:14,722 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 19:35:14,723 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 19:35:14,723 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 19:35:14,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:35:14,725 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:35:14,726 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:35:14,726 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:35:14,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:35:14,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:35:14,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:35:14,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:35:14,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:35:14,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:35:14,729 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:35:14,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:35:14,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:35:14,730 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:35:14,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:35:14,731 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_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edd54c5cc2e5bc16faff7edb80304df4d814ad9943251d6ef92f10d221d4751a [2023-11-21 19:35:15,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:35:15,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:35:15,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:35:15,146 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:35:15,147 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:35:15,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/busybox-1.22.0/cut-2.i [2023-11-21 19:35:18,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:35:18,826 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:35:18,827 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/sv-benchmarks/c/busybox-1.22.0/cut-2.i [2023-11-21 19:35:18,869 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/data/d88e364f2/fc88c7d0250143689e33a089351150d0/FLAG2a81d12ee [2023-11-21 19:35:18,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/data/d88e364f2/fc88c7d0250143689e33a089351150d0 [2023-11-21 19:35:18,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:35:18,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:35:18,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:35:18,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:35:18,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:35:18,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:35:18" (1/1) ... [2023-11-21 19:35:18,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78608303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:18, skipping insertion in model container [2023-11-21 19:35:18,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:35:18" (1/1) ... [2023-11-21 19:35:19,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:35:20,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:35:20,907 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) [2023-11-21 19:35:20,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b8c3f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:20, skipping insertion in model container [2023-11-21 19:35:20,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:35:20,909 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 19:35:20,912 INFO L158 Benchmark]: Toolchain (without parser) took 2015.44ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 106.0MB in the beginning and 157.6MB in the end (delta: -51.6MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2023-11-21 19:35:20,913 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 159.4MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:35:20,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2010.67ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 105.4MB in the beginning and 157.6MB in the end (delta: -52.2MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2023-11-21 19:35:20,916 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 159.4MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2010.67ms. Allocated memory was 159.4MB in the beginning and 199.2MB in the end (delta: 39.8MB). Free memory was 105.4MB in the beginning and 157.6MB in the end (delta: -52.2MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2228]: 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/cut-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5 --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 edd54c5cc2e5bc16faff7edb80304df4d814ad9943251d6ef92f10d221d4751a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:35:23,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:35:23,600 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-21 19:35:23,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:35:23,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:35:23,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:35:23,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:35:23,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:35:23,686 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:35:23,692 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:35:23,693 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:35:23,693 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:35:23,694 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:35:23,696 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:35:23,696 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:35:23,697 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:35:23,698 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 19:35:23,698 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 19:35:23,699 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:35:23,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:35:23,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:35:23,702 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 19:35:23,702 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 19:35:23,703 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 19:35:23,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:35:23,704 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:35:23,704 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:35:23,705 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:35:23,705 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:35:23,706 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:35:23,708 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:35:23,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:35:23,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:35:23,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:35:23,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:35:23,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:35:23,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:35:23,711 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:35:23,711 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:35:23,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:35:23,712 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:35:23,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:35:23,713 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_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edd54c5cc2e5bc16faff7edb80304df4d814ad9943251d6ef92f10d221d4751a [2023-11-21 19:35:24,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:35:24,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:35:24,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:35:24,228 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:35:24,229 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:35:24,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/busybox-1.22.0/cut-2.i [2023-11-21 19:35:27,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:35:28,028 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:35:28,029 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/sv-benchmarks/c/busybox-1.22.0/cut-2.i [2023-11-21 19:35:28,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/data/0ef2bdf66/557a96a4e5a54687b4eb795b4a283b67/FLAG573c37df9 [2023-11-21 19:35:28,100 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/data/0ef2bdf66/557a96a4e5a54687b4eb795b4a283b67 [2023-11-21 19:35:28,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:35:28,107 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:35:28,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:35:28,111 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:35:28,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:35:28,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:35:28" (1/1) ... [2023-11-21 19:35:28,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7739d6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:28, skipping insertion in model container [2023-11-21 19:35:28,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:35:28" (1/1) ... [2023-11-21 19:35:28,250 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:35:30,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:35:30,207 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 19:35:30,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:35:30,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:35:30,560 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:35:30,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:35:30,938 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,938 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,939 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,939 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,939 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,939 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,939 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,940 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,940 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,940 WARN L675 CHandler]: The function strtok is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,940 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:35:30,949 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:35:30,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30 WrapperNode [2023-11-21 19:35:30,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:35:30,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:35:30,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:35:30,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:35:30,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,261 INFO L138 Inliner]: procedures = 595, calls = 569, calls flagged for inlining = 30, calls inlined = 28, statements flattened = 1894 [2023-11-21 19:35:31,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:35:31,264 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:35:31,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:35:31,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:35:31,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,481 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,630 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:35:31,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:35:31,637 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:35:31,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:35:31,638 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (1/1) ... [2023-11-21 19:35:31,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:35:31,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:35:31,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:35:31,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:35:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-21 19:35:31,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-21 19:35:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-21 19:35:31,739 INFO L130 BoogieDeclarations]: Found specification of procedure xatoi_positive [2023-11-21 19:35:31,739 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoi_positive [2023-11-21 19:35:31,739 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-21 19:35:31,740 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-21 19:35:31,740 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-21 19:35:31,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:35:31,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:35:31,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-21 19:35:31,742 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-11-21 19:35:31,742 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-11-21 19:35:31,743 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-21 19:35:31,743 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-21 19:35:31,744 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-21 19:35:31,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:35:31,745 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-21 19:35:31,745 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-21 19:35:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:35:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:35:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-21 19:35:31,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-21 19:35:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-21 19:35:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-21 19:35:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:35:31,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:35:31,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 19:35:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 19:35:31,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 19:35:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-21 19:35:31,750 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-21 19:35:31,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 19:35:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:35:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:35:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2023-11-21 19:35:31,751 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2023-11-21 19:35:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-21 19:35:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:35:31,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:35:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:35:31,752 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:35:31,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:35:31,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:35:31,753 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-21 19:35:31,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-21 19:35:31,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-21 19:35:31,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 19:35:31,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:35:31,754 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-11-21 19:35:31,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-21 19:35:31,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-21 19:35:31,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 19:35:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-21 19:35:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-21 19:35:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure strtok [2023-11-21 19:35:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-21 19:35:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-21 19:35:31,759 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-21 19:35:32,410 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:35:32,413 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:35:32,716 WARN L820 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-21 19:35:45,770 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:35:46,286 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:35:46,286 INFO L308 CfgBuilder]: Removed 35 assume(true) statements. [2023-11-21 19:35:46,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:35:46 BoogieIcfgContainer [2023-11-21 19:35:46,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:35:46,291 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:35:46,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:35:46,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:35:46,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:35:28" (1/3) ... [2023-11-21 19:35:46,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c07765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:35:46, skipping insertion in model container [2023-11-21 19:35:46,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:35:30" (2/3) ... [2023-11-21 19:35:46,298 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c07765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:35:46, skipping insertion in model container [2023-11-21 19:35:46,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:35:46" (3/3) ... [2023-11-21 19:35:46,301 INFO L112 eAbstractionObserver]: Analyzing ICFG cut-2.i [2023-11-21 19:35:46,325 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:35:46,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 569 error locations. [2023-11-21 19:35:46,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:35:46,467 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;@b3389dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:35:46,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 569 error locations. [2023-11-21 19:35:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand has 1237 states, 621 states have (on average 2.241545893719807) internal successors, (1392), 1185 states have internal predecessors, (1392), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-21 19:35:46,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 19:35:46,495 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:35:46,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 19:35:46,497 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 566 more)] === [2023-11-21 19:35:46,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:35:46,505 INFO L85 PathProgramCache]: Analyzing trace with hash 85424, now seen corresponding path program 1 times [2023-11-21 19:35:46,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:35:46,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264753356] [2023-11-21 19:35:46,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:35:46,523 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 [2023-11-21 19:35:46,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:35:46,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:35:46,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:35:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:35:47,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 19:35:47,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:35:47,156 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 [2023-11-21 19:35:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:35:47,191 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:35:47,192 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:35:47,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264753356] [2023-11-21 19:35:47,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264753356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:35:47,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:35:47,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:35:47,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751231370] [2023-11-21 19:35:47,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:35:47,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:35:47,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:35:47,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:35:47,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:35:47,242 INFO L87 Difference]: Start difference. First operand has 1237 states, 621 states have (on average 2.241545893719807) internal successors, (1392), 1185 states have internal predecessors, (1392), 40 states have call successors, (40), 11 states have call predecessors, (40), 11 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 19:35:53,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:35:53,505 INFO L93 Difference]: Finished difference Result 1374 states and 1595 transitions. [2023-11-21 19:35:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:35:53,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-21 19:35:53,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:35:53,533 INFO L225 Difference]: With dead ends: 1374 [2023-11-21 19:35:53,533 INFO L226 Difference]: Without dead ends: 1373 [2023-11-21 19:35:53,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:35:53,539 INFO L413 NwaCegarLoop]: 1121 mSDtfsCounter, 367 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-21 19:35:53,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 1799 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-21 19:35:53,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2023-11-21 19:35:53,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1220. [2023-11-21 19:35:53,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 610 states have (on average 2.2) internal successors, (1342), 1178 states have internal predecessors, (1342), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 19:35:53,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1412 transitions. [2023-11-21 19:35:53,659 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1412 transitions. Word has length 2 [2023-11-21 19:35:53,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:35:53,660 INFO L495 AbstractCegarLoop]: Abstraction has 1220 states and 1412 transitions. [2023-11-21 19:35:53,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 19:35:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1412 transitions. [2023-11-21 19:35:53,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 19:35:53,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:35:53,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 19:35:53,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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)] Forceful destruction successful, exit code 0 [2023-11-21 19:35:53,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:35:53,871 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 566 more)] === [2023-11-21 19:35:53,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:35:53,872 INFO L85 PathProgramCache]: Analyzing trace with hash 85425, now seen corresponding path program 1 times [2023-11-21 19:35:53,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:35:53,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775341448] [2023-11-21 19:35:53,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:35:53,880 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 [2023-11-21 19:35:53,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:35:53,884 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:35:53,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:35:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:35:54,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 19:35:54,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:35:54,380 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 [2023-11-21 19:35:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:35:54,420 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:35:54,420 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:35:54,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1775341448] [2023-11-21 19:35:54,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1775341448] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:35:54,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:35:54,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:35:54,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58972145] [2023-11-21 19:35:54,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:35:54,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:35:54,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:35:54,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:35:54,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:35:54,424 INFO L87 Difference]: Start difference. First operand 1220 states and 1412 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 19:36:02,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:36:02,823 INFO L93 Difference]: Finished difference Result 1219 states and 1411 transitions. [2023-11-21 19:36:02,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:36:02,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-21 19:36:02,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:36:02,832 INFO L225 Difference]: With dead ends: 1219 [2023-11-21 19:36:02,832 INFO L226 Difference]: Without dead ends: 1219 [2023-11-21 19:36:02,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:36:02,834 INFO L413 NwaCegarLoop]: 1257 mSDtfsCounter, 8 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-21 19:36:02,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2049 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-21 19:36:02,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2023-11-21 19:36:02,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2023-11-21 19:36:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 610 states have (on average 2.198360655737705) internal successors, (1341), 1177 states have internal predecessors, (1341), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 19:36:02,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1411 transitions. [2023-11-21 19:36:02,876 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1411 transitions. Word has length 2 [2023-11-21 19:36:02,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:36:02,877 INFO L495 AbstractCegarLoop]: Abstraction has 1219 states and 1411 transitions. [2023-11-21 19:36:02,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 19:36:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1411 transitions. [2023-11-21 19:36:02,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 19:36:02,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:36:02,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 19:36:02,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:36:03,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:36:03,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 566 more)] === [2023-11-21 19:36:03,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:36:03,087 INFO L85 PathProgramCache]: Analyzing trace with hash 84174031, now seen corresponding path program 1 times [2023-11-21 19:36:03,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:36:03,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115422599] [2023-11-21 19:36:03,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:36:03,089 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 [2023-11-21 19:36:03,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:36:03,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:36:03,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:36:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:36:03,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 19:36:03,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:36:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:36:03,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:36:03,529 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:36:03,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115422599] [2023-11-21 19:36:03,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2115422599] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:36:03,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:36:03,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:36:03,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141832375] [2023-11-21 19:36:03,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:36:03,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:36:03,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:36:03,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:36:03,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:36:03,531 INFO L87 Difference]: Start difference. First operand 1219 states and 1411 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-21 19:36:06,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:36:06,181 INFO L93 Difference]: Finished difference Result 1222 states and 1414 transitions. [2023-11-21 19:36:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:36:06,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-21 19:36:06,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:36:06,190 INFO L225 Difference]: With dead ends: 1222 [2023-11-21 19:36:06,190 INFO L226 Difference]: Without dead ends: 1222 [2023-11-21 19:36:06,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:36:06,192 INFO L413 NwaCegarLoop]: 1258 mSDtfsCounter, 2 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2516 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-21 19:36:06,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2516 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-21 19:36:06,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2023-11-21 19:36:06,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1220. [2023-11-21 19:36:06,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 611 states have (on average 2.1963993453355157) internal successors, (1342), 1178 states have internal predecessors, (1342), 40 states have call successors, (40), 11 states have call predecessors, (40), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-21 19:36:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1412 transitions. [2023-11-21 19:36:06,231 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1412 transitions. Word has length 4 [2023-11-21 19:36:06,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:36:06,231 INFO L495 AbstractCegarLoop]: Abstraction has 1220 states and 1412 transitions. [2023-11-21 19:36:06,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-21 19:36:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1412 transitions. [2023-11-21 19:36:06,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 19:36:06,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:36:06,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 19:36:06,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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)] Ended with exit code 0 [2023-11-21 19:36:06,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:36:06,441 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 566 more)] === [2023-11-21 19:36:06,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:36:06,442 INFO L85 PathProgramCache]: Analyzing trace with hash 84106318, now seen corresponding path program 1 times [2023-11-21 19:36:06,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:36:06,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396213144] [2023-11-21 19:36:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:36:06,445 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 [2023-11-21 19:36:06,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:36:06,446 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:36:06,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4372308-bc61-4560-a318-45ab71e9ba20/bin/utaipan-verify-QoSU8krkJ5/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