./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/sleep-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 201afb0304f75aafd17af3d762c0926f4ea0271883b75624cd621490900e7673 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:28:33,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:28:33,649 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-24 21:28:33,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:28:33,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:28:33,683 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:28:33,684 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:28:33,685 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:28:33,685 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:28:33,686 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:28:33,687 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:28:33,687 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:28:33,688 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:28:33,689 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:28:33,689 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:28:33,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:28:33,690 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:28:33,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:28:33,696 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:28:33,697 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:28:33,697 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:28:33,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:28:33,702 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:28:33,702 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:28:33,703 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:28:33,703 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:28:33,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:28:33,704 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:28:33,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:28:33,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:28:33,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:28:33,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:28:33,708 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:28:33,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:28:33,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:28:33,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:28:33,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:28:33,709 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:28:33,709 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 201afb0304f75aafd17af3d762c0926f4ea0271883b75624cd621490900e7673 [2023-11-24 21:28:33,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:28:34,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:28:34,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:28:34,022 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:28:34,023 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:28:34,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/busybox-1.22.0/sleep-1.i [2023-11-24 21:28:37,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:28:37,726 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:28:37,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/sv-benchmarks/c/busybox-1.22.0/sleep-1.i [2023-11-24 21:28:37,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/data/66e23137a/39f48edcc59b44ebbe5fcf8be9b31aed/FLAG56de35918 [2023-11-24 21:28:37,786 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/data/66e23137a/39f48edcc59b44ebbe5fcf8be9b31aed [2023-11-24 21:28:37,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:28:37,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:28:37,795 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:28:37,795 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:28:37,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:28:37,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:28:37" (1/1) ... [2023-11-24 21:28:37,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32380134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:37, skipping insertion in model container [2023-11-24 21:28:37,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:28:37" (1/1) ... [2023-11-24 21:28:37,923 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:28:39,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:28:39,493 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) [2023-11-24 21:28:39,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35d6a297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:39, skipping insertion in model container [2023-11-24 21:28:39,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:28:39,495 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:28:39,497 INFO L158 Benchmark]: Toolchain (without parser) took 1702.28ms. Allocated memory is still 184.5MB. Free memory was 133.1MB in the beginning and 102.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-24 21:28:39,498 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 89.6MB in the end (delta: 22.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:28:39,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1699.80ms. Allocated memory is still 184.5MB. Free memory was 133.1MB in the beginning and 102.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-24 21:28:39,501 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 127.9MB. Free memory was 89.6MB in the beginning and 89.6MB in the end (delta: 22.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1699.80ms. Allocated memory is still 184.5MB. Free memory was 133.1MB in the beginning and 102.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2471]: 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_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 201afb0304f75aafd17af3d762c0926f4ea0271883b75624cd621490900e7673 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:28:42,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:28:42,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-24 21:28:42,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:28:42,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:28:42,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:28:42,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:28:42,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:28:42,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:28:42,249 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:28:42,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:28:42,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:28:42,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:28:42,253 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:28:42,253 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:28:42,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:28:42,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:28:42,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:28:42,255 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:28:42,256 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:28:42,257 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:28:42,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:28:42,258 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:28:42,258 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:28:42,258 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:28:42,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:28:42,259 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:28:42,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:28:42,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:28:42,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:28:42,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:28:42,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:28:42,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:28:42,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:28:42,263 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:28:42,264 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:28:42,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:28:42,265 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:28:42,265 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:28:42,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:28:42,266 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:28:42,266 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 201afb0304f75aafd17af3d762c0926f4ea0271883b75624cd621490900e7673 [2023-11-24 21:28:42,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:28:42,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:28:42,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:28:42,690 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:28:42,691 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:28:42,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/busybox-1.22.0/sleep-1.i [2023-11-24 21:28:45,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:28:46,361 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:28:46,362 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/sv-benchmarks/c/busybox-1.22.0/sleep-1.i [2023-11-24 21:28:46,405 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/data/1bea2d27b/69673612d590433a99fd19aac8d0b0c7/FLAG3974519a0 [2023-11-24 21:28:46,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/data/1bea2d27b/69673612d590433a99fd19aac8d0b0c7 [2023-11-24 21:28:46,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:28:46,429 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:28:46,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:28:46,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:28:46,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:28:46,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:28:46" (1/1) ... [2023-11-24 21:28:46,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6131a3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:46, skipping insertion in model container [2023-11-24 21:28:46,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:28:46" (1/1) ... [2023-11-24 21:28:46,531 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:28:48,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:28:48,434 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:28:48,459 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:28:48,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:28:48,642 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:28:48,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:28:49,133 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:28:49,133 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:28:49,133 WARN L675 CHandler]: The function strspn is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:28:49,141 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:28:49,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49 WrapperNode [2023-11-24 21:28:49,142 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:28:49,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:28:49,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:28:49,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:28:49,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,256 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,345 INFO L138 Inliner]: procedures = 647, calls = 240, calls flagged for inlining = 18, calls inlined = 16, statements flattened = 754 [2023-11-24 21:28:49,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:28:49,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:28:49,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:28:49,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:28:49,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,397 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-24 21:28:49,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,514 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:28:49,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:28:49,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:28:49,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:28:49,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (1/1) ... [2023-11-24 21:28:49,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:28:49,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:28:49,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:28:49,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:28:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:28:49,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 21:28:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-24 21:28:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2023-11-24 21:28:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2023-11-24 21:28:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:28:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-24 21:28:49,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:28:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 21:28:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-24 21:28:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-24 21:28:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-24 21:28:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-24 21:28:49,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:28:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:28:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-24 21:28:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-24 21:28:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-24 21:28:49,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-24 21:28:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 21:28:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 21:28:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 21:28:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 21:28:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 21:28:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:28:49,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 21:28:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-24 21:28:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-24 21:28:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 21:28:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2023-11-24 21:28:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-24 21:28:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-24 21:28:49,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-24 21:28:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-24 21:28:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-24 21:28:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-24 21:28:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-24 21:28:50,230 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:28:50,233 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:29:00,133 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:29:00,390 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:29:00,390 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-24 21:29:00,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:29:00 BoogieIcfgContainer [2023-11-24 21:29:00,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:29:00,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:29:00,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:29:00,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:29:00,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:28:46" (1/3) ... [2023-11-24 21:29:00,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37183240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:29:00, skipping insertion in model container [2023-11-24 21:29:00,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:49" (2/3) ... [2023-11-24 21:29:00,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37183240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:29:00, skipping insertion in model container [2023-11-24 21:29:00,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:29:00" (3/3) ... [2023-11-24 21:29:00,404 INFO L112 eAbstractionObserver]: Analyzing ICFG sleep-1.i [2023-11-24 21:29:00,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:29:00,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 231 error locations. [2023-11-24 21:29:00,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:29:00,538 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=PETRI_NET, 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;@504298dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:29:00,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 231 error locations. [2023-11-24 21:29:00,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 488 states, 238 states have (on average 2.2436974789915967) internal successors, (534), 469 states have internal predecessors, (534), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-24 21:29:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 21:29:00,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:29:00,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 21:29:00,557 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 228 more)] === [2023-11-24 21:29:00,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:29:00,566 INFO L85 PathProgramCache]: Analyzing trace with hash 31040, now seen corresponding path program 1 times [2023-11-24 21:29:00,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:29:00,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11000688] [2023-11-24 21:29:00,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:29:00,590 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 [2023-11-24 21:29:00,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:29:00,595 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:29:00,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:29:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:29:00,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:29:00,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:29:01,050 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 [2023-11-24 21:29:01,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:29:01,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:29:01,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:29:01,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11000688] [2023-11-24 21:29:01,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11000688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:29:01,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:29:01,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:29:01,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414452288] [2023-11-24 21:29:01,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:29:01,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:29:01,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:29:01,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:29:01,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:29:01,123 INFO L87 Difference]: Start difference. First operand has 488 states, 238 states have (on average 2.2436974789915967) internal successors, (534), 469 states have internal predecessors, (534), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) 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) [2023-11-24 21:29:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:29:04,555 INFO L93 Difference]: Finished difference Result 523 states and 586 transitions. [2023-11-24 21:29:04,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:29:04,560 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 [2023-11-24 21:29:04,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:29:04,576 INFO L225 Difference]: With dead ends: 523 [2023-11-24 21:29:04,576 INFO L226 Difference]: Without dead ends: 522 [2023-11-24 21:29:04,578 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 [2023-11-24 21:29:04,582 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 83 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:29:04,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 708 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-24 21:29:04,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-11-24 21:29:04,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 481. [2023-11-24 21:29:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 236 states have (on average 2.1737288135593222) internal successors, (513), 464 states have internal predecessors, (513), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-24 21:29:04,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 539 transitions. [2023-11-24 21:29:04,667 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 539 transitions. Word has length 2 [2023-11-24 21:29:04,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:29:04,668 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 539 transitions. [2023-11-24 21:29:04,668 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) [2023-11-24 21:29:04,668 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 539 transitions. [2023-11-24 21:29:04,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 21:29:04,669 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:29:04,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 21:29:04,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-24 21:29:04,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:29:04,875 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 228 more)] === [2023-11-24 21:29:04,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:29:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash 31041, now seen corresponding path program 1 times [2023-11-24 21:29:04,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:29:04,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4448541] [2023-11-24 21:29:04,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:29:04,878 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 [2023-11-24 21:29:04,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:29:04,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:29:04,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:29:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:29:05,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:29:05,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:29:05,189 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 [2023-11-24 21:29:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:29:05,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:29:05,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:29:05,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4448541] [2023-11-24 21:29:05,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4448541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:29:05,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:29:05,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:29:05,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071068539] [2023-11-24 21:29:05,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:29:05,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:29:05,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:29:05,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:29:05,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:29:05,233 INFO L87 Difference]: Start difference. First operand 481 states and 539 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) [2023-11-24 21:29:09,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:29:09,454 INFO L93 Difference]: Finished difference Result 480 states and 538 transitions. [2023-11-24 21:29:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:29:09,455 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 [2023-11-24 21:29:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:29:09,459 INFO L225 Difference]: With dead ends: 480 [2023-11-24 21:29:09,459 INFO L226 Difference]: Without dead ends: 480 [2023-11-24 21:29:09,460 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 [2023-11-24 21:29:09,461 INFO L413 NwaCegarLoop]: 477 mSDtfsCounter, 9 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-24 21:29:09,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 769 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-24 21:29:09,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-11-24 21:29:09,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-11-24 21:29:09,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 236 states have (on average 2.169491525423729) internal successors, (512), 463 states have internal predecessors, (512), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-24 21:29:09,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 538 transitions. [2023-11-24 21:29:09,510 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 538 transitions. Word has length 2 [2023-11-24 21:29:09,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:29:09,511 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 538 transitions. [2023-11-24 21:29:09,511 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) [2023-11-24 21:29:09,511 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 538 transitions. [2023-11-24 21:29:09,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 21:29:09,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:29:09,512 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-24 21:29:09,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:29:09,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:29:09,713 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 228 more)] === [2023-11-24 21:29:09,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:29:09,713 INFO L85 PathProgramCache]: Analyzing trace with hash 30374349, now seen corresponding path program 1 times [2023-11-24 21:29:09,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:29:09,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714114059] [2023-11-24 21:29:09,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:29:09,715 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 [2023-11-24 21:29:09,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:29:09,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:29:09,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:29:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:29:10,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:29:10,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:29:10,041 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 [2023-11-24 21:29:10,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:29:10,170 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:29:10,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:29:10,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714114059] [2023-11-24 21:29:10,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714114059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:29:10,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:29:10,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:29:10,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698172956] [2023-11-24 21:29:10,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:29:10,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:29:10,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:29:10,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:29:10,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:29:10,174 INFO L87 Difference]: Start difference. First operand 480 states and 538 transitions. Second operand has 4 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) [2023-11-24 21:29:15,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:29:15,704 INFO L93 Difference]: Finished difference Result 482 states and 540 transitions. [2023-11-24 21:29:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:29:15,706 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2023-11-24 21:29:15,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:29:15,710 INFO L225 Difference]: With dead ends: 482 [2023-11-24 21:29:15,710 INFO L226 Difference]: Without dead ends: 482 [2023-11-24 21:29:15,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:29:15,712 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 9 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:29:15,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1061 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-24 21:29:15,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-24 21:29:15,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2023-11-24 21:29:15,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 238 states have (on average 2.1596638655462184) internal successors, (514), 465 states have internal predecessors, (514), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-24 21:29:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 540 transitions. [2023-11-24 21:29:15,744 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 540 transitions. Word has length 4 [2023-11-24 21:29:15,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:29:15,745 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 540 transitions. [2023-11-24 21:29:15,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2023-11-24 21:29:15,745 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 540 transitions. [2023-11-24 21:29:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 21:29:15,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:29:15,746 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-24 21:29:15,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-24 21:29:15,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:29:15,956 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 228 more)] === [2023-11-24 21:29:15,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:29:15,957 INFO L85 PathProgramCache]: Analyzing trace with hash -874481579, now seen corresponding path program 1 times [2023-11-24 21:29:15,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:29:15,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909560181] [2023-11-24 21:29:15,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:29:15,960 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 [2023-11-24 21:29:15,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:29:15,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:29:15,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f60bb5e1-12e5-4b9a-ad9e-ab056fb07872/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-24 21:29:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:29:16,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:29:16,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:29:16,277 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 [2023-11-24 21:29:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:29:16,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:29:17,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:29:17,468 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:29:17,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909560181] [2023-11-24 21:29:17,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909560181] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:29:17,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:29:17,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2023-11-24 21:29:17,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470589009] [2023-11-24 21:29:17,469 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:29:17,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:29:17,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:29:17,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:29:17,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:29:17,470 INFO L87 Difference]: Start difference. First operand 482 states and 540 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 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)