./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8fe67ec8a1cceb0cd62d7df49bd267f31e7032bc2f558a91a049617cb1d2deea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:18,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:18,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2023-11-06 20:34:18,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:18,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:18,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:18,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:18,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:18,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:18,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:18,726 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:18,727 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:18,728 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:18,728 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:34:18,729 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:18,729 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:18,730 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:34:18,730 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:34:18,731 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:18,732 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:34:18,732 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:34:18,733 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:34:18,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:34:18,734 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:34:18,735 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:18,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:18,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:18,737 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:34:18,737 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:34:18,737 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:34:18,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:18,738 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:34:18,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:34:18,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:18,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:18,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:18,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:18,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:18,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:18,742 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:34:18,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:34:18,743 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:18,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:18,744 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_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fe67ec8a1cceb0cd62d7df49bd267f31e7032bc2f558a91a049617cb1d2deea [2023-11-06 20:34:18,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:19,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:19,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:19,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:19,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:19,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-11-06 20:34:22,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:22,727 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:22,728 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-11-06 20:34:22,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/data/50684902f/47b21d74e1cf4e3da14fbc29035af0c0/FLAG95f68dc84 [2023-11-06 20:34:22,795 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/data/50684902f/47b21d74e1cf4e3da14fbc29035af0c0 [2023-11-06 20:34:22,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:22,809 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:22,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:22,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:22,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:22,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:22" (1/1) ... [2023-11-06 20:34:22,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@727b884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:22, skipping insertion in model container [2023-11-06 20:34:22,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:22" (1/1) ... [2023-11-06 20:34:22,932 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:24,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:24,642 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) [2023-11-06 20:34:24,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4f37c13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:24, skipping insertion in model container [2023-11-06 20:34:24,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:24,643 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:34:24,645 INFO L158 Benchmark]: Toolchain (without parser) took 1835.60ms. Allocated memory is still 146.8MB. Free memory was 99.5MB in the beginning and 104.9MB in the end (delta: -5.4MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-06 20:34:24,646 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:34:24,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1829.61ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 104.9MB in the end (delta: -5.7MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-06 20:34:24,649 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 111.1MB. Free memory is still 58.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1829.61ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 104.9MB in the end (delta: -5.7MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2217]: 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_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tee-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8fe67ec8a1cceb0cd62d7df49bd267f31e7032bc2f558a91a049617cb1d2deea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:27,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:27,426 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Bitvector.epf [2023-11-06 20:34:27,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:27,437 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:27,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:27,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:27,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:27,495 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:27,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:27,501 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:27,502 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:27,502 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:27,504 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:27,505 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:27,505 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:27,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:34:27,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:34:27,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:27,509 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:27,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:27,510 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:34:27,510 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:34:27,511 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:34:27,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:27,512 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:34:27,512 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:34:27,512 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:34:27,513 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:34:27,513 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:27,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:27,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:34:27,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:27,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:27,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:27,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:27,517 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:34:27,518 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:34:27,518 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:27,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:27,518 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_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fe67ec8a1cceb0cd62d7df49bd267f31e7032bc2f558a91a049617cb1d2deea [2023-11-06 20:34:28,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:28,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:28,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:28,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:28,048 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:28,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-11-06 20:34:31,309 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:31,951 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:31,951 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/sv-benchmarks/c/busybox-1.22.0/tee-2.i [2023-11-06 20:34:31,985 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/data/c43279951/0b78739d39914441a1c26a00547d4831/FLAG0ac39d01b [2023-11-06 20:34:32,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/data/c43279951/0b78739d39914441a1c26a00547d4831 [2023-11-06 20:34:32,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:32,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:32,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:32,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:32,020 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:32,021 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:32" (1/1) ... [2023-11-06 20:34:32,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2f61f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:32, skipping insertion in model container [2023-11-06 20:34:32,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:32" (1/1) ... [2023-11-06 20:34:32,179 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:33,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:33,924 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:34:33,976 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:34,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:34,146 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:34:34,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:34,605 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:34,605 WARN L672 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:34,606 WARN L672 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:34,606 WARN L672 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:34,606 WARN L672 CHandler]: The function setbuf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:34,606 WARN L672 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:34,606 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:34,607 WARN L672 CHandler]: The function fwrite is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:34,618 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:34:34,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34 WrapperNode [2023-11-06 20:34:34,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:34,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:34,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:34:34,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:34:34,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:34,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:34,861 INFO L138 Inliner]: procedures = 589, calls = 416, calls flagged for inlining = 28, calls inlined = 26, statements flattened = 1486 [2023-11-06 20:34:34,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:34,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:34:34,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:34:34,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:34:34,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:34,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:34,926 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:34,927 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:35,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:35,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:35,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:35,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:35,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:34:35,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:34:35,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:34:35,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:34:35,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (1/1) ... [2023-11-06 20:34:35,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:35,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:34:35,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:34:35,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:34:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-06 20:34:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:34:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:34:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 20:34:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2023-11-06 20:34:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-11-06 20:34:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-11-06 20:34:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 20:34:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 20:34:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:34:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 20:34:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:34:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:34:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-06 20:34:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-06 20:34:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-06 20:34:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-06 20:34:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:34:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:34:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 20:34:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 20:34:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 20:34:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-06 20:34:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-06 20:34:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:34:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 20:34:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 20:34:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-06 20:34:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 20:34:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 20:34:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 20:34:35,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 20:34:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:34:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:34:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-06 20:34:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 20:34:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 20:34:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:34:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 20:34:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 20:34:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-06 20:34:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 20:34:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-06 20:34:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-06 20:34:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-06 20:34:35,201 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-06 20:34:35,201 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2023-11-06 20:34:35,798 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:34:35,800 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:34:36,042 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:34:46,889 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:34:46,904 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:34:46,905 INFO L302 CfgBuilder]: Removed 29 assume(true) statements. [2023-11-06 20:34:46,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:46 BoogieIcfgContainer [2023-11-06 20:34:46,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:34:46,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:34:46,911 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:34:46,914 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:34:46,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:34:32" (1/3) ... [2023-11-06 20:34:46,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d8e0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:46, skipping insertion in model container [2023-11-06 20:34:46,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:34" (2/3) ... [2023-11-06 20:34:46,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d8e0c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:34:46, skipping insertion in model container [2023-11-06 20:34:46,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:34:46" (3/3) ... [2023-11-06 20:34:46,917 INFO L112 eAbstractionObserver]: Analyzing ICFG tee-2.i [2023-11-06 20:34:46,935 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:34:46,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 455 error locations. [2023-11-06 20:34:47,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:34:47,007 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;@2e4929e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:34:47,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 455 error locations. [2023-11-06 20:34:47,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 1092 states, 608 states have (on average 2.0279605263157894) internal successors, (1233), 1060 states have internal predecessors, (1233), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 20:34:47,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:34:47,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:34:47,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:34:47,024 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 452 more)] === [2023-11-06 20:34:47,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:34:47,029 INFO L85 PathProgramCache]: Analyzing trace with hash 389323, now seen corresponding path program 1 times [2023-11-06 20:34:47,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:34:47,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467995395] [2023-11-06 20:34:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:34:47,049 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 [2023-11-06 20:34:47,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:34:47,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/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) [2023-11-06 20:34:47,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a8ef819-47c5-4485-a882-0574103f3109/bin/utaipan-verify-FOvIYxoinp/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 [2023-11-06 20:34:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:34:47,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 20:34:47,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:34:47,506 INFO L351 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 [2023-11-06 20:34:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:34:47,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:34:47,542 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:34:47,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467995395] [2023-11-06 20:34:47,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467995395] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:34:47,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:34:47,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:34:47,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744809890] [2023-11-06 20:34:47,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:34:47,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:34:47,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:34:47,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:34:47,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:34:47,597 INFO L87 Difference]: Start difference. First operand has 1092 states, 608 states have (on average 2.0279605263157894) internal successors, (1233), 1060 states have internal predecessors, (1233), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) 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)