./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu --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 f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:35,793 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:35,918 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-19 07:55:35,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:35,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:35,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:35,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:35,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:35,964 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:35,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:35,970 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:35,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:35,971 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:35,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:35,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:35,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:35,974 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:55:35,975 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:55:35,975 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:55:35,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:35,976 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:55:35,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:35,976 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:35,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:35,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:35,978 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:35,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:35,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:35,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:35,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:35,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:35,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:35,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:35,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:35,982 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:35,982 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_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 [2023-11-19 07:55:36,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:36,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:36,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:36,283 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:36,287 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:36,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2023-11-19 07:55:39,339 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:39,970 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:39,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2023-11-19 07:55:40,015 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/data/e7619e911/e5625bc09a954a33a66f01a27f2c6bf0/FLAGde95ba3ab [2023-11-19 07:55:40,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/data/e7619e911/e5625bc09a954a33a66f01a27f2c6bf0 [2023-11-19 07:55:40,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:40,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:40,044 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:40,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:40,051 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:40,052 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:40" (1/1) ... [2023-11-19 07:55:40,053 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635b1937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:40, skipping insertion in model container [2023-11-19 07:55:40,053 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:40" (1/1) ... [2023-11-19 07:55:40,193 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:41,160 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,506 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,547 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,558 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,562 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,595 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,597 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,649 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,756 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,793 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,799 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,803 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,809 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,810 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,814 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,825 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,826 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,835 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,841 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,842 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,844 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,845 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,846 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,851 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,852 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,853 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 07:55:41,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:41,970 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 07:55:41,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@54d775ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:41, skipping insertion in model container [2023-11-19 07:55:41,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:41,972 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:55:41,974 INFO L158 Benchmark]: Toolchain (without parser) took 1931.84ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 91.8MB in the beginning and 125.6MB in the end (delta: -33.8MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-11-19 07:55:41,974 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:41,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1927.26ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 91.4MB in the beginning and 125.7MB in the end (delta: -34.3MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:41,978 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 100.7MB. Free memory is still 52.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1927.26ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 91.4MB in the beginning and 125.7MB in the end (delta: -34.3MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 3767]: 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_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu --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 f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:44,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:44,692 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-19 07:55:44,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:44,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:44,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:44,749 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:44,749 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:44,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:44,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:44,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:44,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:44,758 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:44,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:44,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:44,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:44,762 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:55:44,762 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:55:44,763 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:55:44,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:44,765 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:55:44,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:55:44,766 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:55:44,767 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:44,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:44,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:44,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:44,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:44,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:44,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:44,772 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:44,772 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:55:44,773 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:55:44,773 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:44,774 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:44,774 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:44,774 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:55:44,775 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:44,775 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_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 [2023-11-19 07:55:45,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:45,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:45,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:45,268 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:45,269 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:45,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2023-11-19 07:55:48,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:49,311 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:49,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2023-11-19 07:55:49,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/data/cab077216/f72af4e34562424dbca0f8cd3745c02a/FLAGc778f54b2 [2023-11-19 07:55:49,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/data/cab077216/f72af4e34562424dbca0f8cd3745c02a [2023-11-19 07:55:49,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:49,392 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:49,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:49,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:49,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:49,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481f346f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:49, skipping insertion in model container [2023-11-19 07:55:49,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:49" (1/1) ... [2023-11-19 07:55:49,590 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:51,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:51,406 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:55:51,516 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:51,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:51,916 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:52,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3641-3642] [2023-11-19 07:55:52,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0\n\tcmovzl %2,%0": "=&r" (r): "rm" (x), "rm" (-1)); [3649] [2023-11-19 07:55:52,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3668] [2023-11-19 07:55:52,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3670] [2023-11-19 07:55:52,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3672] [2023-11-19 07:55:52,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3675] [2023-11-19 07:55:52,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [3742] [2023-11-19 07:55:52,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3744] [2023-11-19 07:55:52,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3746] [2023-11-19 07:55:52,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3749] [2023-11-19 07:55:52,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4027] [2023-11-19 07:55:52,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4036] [2023-11-19 07:55:52,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4039] [2023-11-19 07:55:52,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/loop.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/loop.c.p"), "i" (533), "i" (12UL)); [4827-4828] [2023-11-19 07:55:52,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/loop.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/loop.c.p"), "i" (600), "i" (12UL)); [4989-4990] [2023-11-19 07:55:52,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:52,396 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:55:52,397 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:55:52,424 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:52,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52 WrapperNode [2023-11-19 07:55:52,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:52,426 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:52,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:52,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:52,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,734 INFO L138 Inliner]: procedures = 251, calls = 1214, calls flagged for inlining = 129, calls inlined = 118, statements flattened = 3465 [2023-11-19 07:55:52,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:52,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:52,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:52,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:52,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:52,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,067 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:53,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:53,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:53,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:53,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (1/1) ... [2023-11-19 07:55:53,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:53,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:53,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:53,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:55:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2023-11-19 07:55:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2023-11-19 07:55:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-19 07:55:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:55:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:55:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-19 07:55:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:55:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure vfs_fsync [2023-11-19 07:55:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure vfs_fsync [2023-11-19 07:55:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-19 07:55:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-19 07:55:53,156 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 07:55:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 07:55:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:55:53,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:55:53,157 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2023-11-19 07:55:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2023-11-19 07:55:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2023-11-19 07:55:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2023-11-19 07:55:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-19 07:55:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-19 07:55:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_xor [2023-11-19 07:55:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_xor [2023-11-19 07:55:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure invalidate_bdev [2023-11-19 07:55:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure invalidate_bdev [2023-11-19 07:55:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-19 07:55:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-19 07:55:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:55:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:55:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure huge_encode_dev [2023-11-19 07:55:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure huge_encode_dev [2023-11-19 07:55:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure lo_do_transfer [2023-11-19 07:55:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_do_transfer [2023-11-19 07:55:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure loop_sysfs_exit [2023-11-19 07:55:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_sysfs_exit [2023-11-19 07:55:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-11-19 07:55:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-11-19 07:55:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2023-11-19 07:55:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2023-11-19 07:55:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:55:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:55:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure loop_alloc [2023-11-19 07:55:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_alloc [2023-11-19 07:55:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure loop_make_request [2023-11-19 07:55:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_make_request [2023-11-19 07:55:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure __do_lo_send_write [2023-11-19 07:55:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_lo_send_write [2023-11-19 07:55:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure loop_get_status [2023-11-19 07:55:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_get_status [2023-11-19 07:55:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure loop_clr_fd [2023-11-19 07:55:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_clr_fd [2023-11-19 07:55:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:55:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure figure_loop_size [2023-11-19 07:55:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure figure_loop_size [2023-11-19 07:55:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_by_bdev [2023-11-19 07:55:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_by_bdev [2023-11-19 07:55:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:55:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 07:55:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-19 07:55:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-19 07:55:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-19 07:55:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-19 07:55:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:55:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:55:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:55:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:55:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:55:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:55:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:55:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-19 07:55:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-19 07:55:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-19 07:55:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2023-11-19 07:55:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2023-11-19 07:55:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2023-11-19 07:55:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 07:55:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 07:55:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_capacity [2023-11-19 07:55:53,177 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_capacity [2023-11-19 07:55:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2023-11-19 07:55:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2023-11-19 07:55:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:55:53,178 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:55:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure loop_free [2023-11-19 07:55:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_free [2023-11-19 07:55:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_none [2023-11-19 07:55:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_none [2023-11-19 07:55:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure bd_set_size [2023-11-19 07:55:53,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_set_size [2023-11-19 07:55:53,179 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2023-11-19 07:55:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2023-11-19 07:55:53,180 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_set_gfp_mask [2023-11-19 07:55:53,180 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_set_gfp_mask [2023-11-19 07:55:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure xor_init [2023-11-19 07:55:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure xor_init [2023-11-19 07:55:53,181 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2023-11-19 07:55:53,181 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2023-11-19 07:55:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:55:53,182 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:55:53,182 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:55:53,182 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:55:53,183 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-11-19 07:55:53,183 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-11-19 07:55:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 07:55:53,184 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 07:55:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 07:55:53,184 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 07:55:53,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-19 07:55:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-19 07:55:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 07:55:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-19 07:55:53,185 INFO L130 BoogieDeclarations]: Found specification of procedure __kmap_atomic [2023-11-19 07:55:53,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmap_atomic [2023-11-19 07:55:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 07:55:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 07:55:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:55:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 07:55:53,186 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 07:55:53,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure get_loop_size [2023-11-19 07:55:53,187 INFO L138 BoogieDeclarations]: Found implementation of procedure get_loop_size [2023-11-19 07:55:53,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:55:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2023-11-19 07:55:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2023-11-19 07:55:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status [2023-11-19 07:55:53,188 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status [2023-11-19 07:55:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 07:55:53,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-19 07:55:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure lo_ioctl [2023-11-19 07:55:53,189 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_ioctl [2023-11-19 07:55:53,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-19 07:55:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-19 07:55:53,191 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 07:55:53,191 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 07:55:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2023-11-19 07:55:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2023-11-19 07:55:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure loop_release_xfer [2023-11-19 07:55:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_release_xfer [2023-11-19 07:55:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2023-11-19 07:55:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2023-11-19 07:55:53,192 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2023-11-19 07:55:53,192 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2023-11-19 07:55:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 07:55:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 07:55:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure loop_switch [2023-11-19 07:55:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_switch [2023-11-19 07:55:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_gfp_mask [2023-11-19 07:55:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_gfp_mask [2023-11-19 07:55:53,193 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-19 07:55:53,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-19 07:55:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2023-11-19 07:55:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2023-11-19 07:55:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-19 07:55:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:53,194 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:55:53,194 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:55:53,940 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:53,944 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:57,880 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:56:01,656 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2023-11-19 07:56:01,656 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2023-11-19 07:56:01,714 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-19 07:56:01,714 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-19 07:56:03,968 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:56:06,097 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-19 07:56:06,098 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-19 07:56:07,191 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:56:08,356 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:56:08,357 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:56:12,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##72: assume !false; [2023-11-19 07:56:12,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume false; [2023-11-19 07:56:12,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2023-11-19 07:56:12,103 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2023-11-19 07:56:12,344 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:12,376 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:12,376 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:56:12,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:12 BoogieIcfgContainer [2023-11-19 07:56:12,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:12,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:56:12,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:56:12,400 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:56:12,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:49" (1/3) ... [2023-11-19 07:56:12,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c69976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:12, skipping insertion in model container [2023-11-19 07:56:12,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:52" (2/3) ... [2023-11-19 07:56:12,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15c69976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:12, skipping insertion in model container [2023-11-19 07:56:12,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:12" (3/3) ... [2023-11-19 07:56:12,404 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-loop.ko.cil.out.i [2023-11-19 07:56:12,425 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:56:12,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1063 error locations. [2023-11-19 07:56:12,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:12,534 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;@10e953e6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:12,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1063 error locations. [2023-11-19 07:56:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 2725 states, 1418 states have (on average 1.8921015514809592) internal successors, (2683), 2449 states have internal predecessors, (2683), 223 states have call successors, (223), 64 states have call predecessors, (223), 64 states have return successors, (223), 222 states have call predecessors, (223), 223 states have call successors, (223) [2023-11-19 07:56:12,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:56:12,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:12,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:12,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr206ASSERT_VIOLATIONMEMORY_LEAK === [__do_lo_send_writeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1060 more)] === [2023-11-19 07:56:12,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:12,569 INFO L85 PathProgramCache]: Analyzing trace with hash -713982073, now seen corresponding path program 1 times [2023-11-19 07:56:12,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:56:12,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494995378] [2023-11-19 07:56:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:12,588 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:12,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:56:12,591 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:56:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:56:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:13,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:56:13,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:13,634 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:13,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:56:13,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494995378] [2023-11-19 07:56:13,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494995378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:13,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:13,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:56:13,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427756510] [2023-11-19 07:56:13,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:13,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:13,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:56:13,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:13,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:13,697 INFO L87 Difference]: Start difference. First operand has 2725 states, 1418 states have (on average 1.8921015514809592) internal successors, (2683), 2449 states have internal predecessors, (2683), 223 states have call successors, (223), 64 states have call predecessors, (223), 64 states have return successors, (223), 222 states have call predecessors, (223), 223 states have call successors, (223) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:14,152 INFO L93 Difference]: Finished difference Result 5435 states and 6229 transitions. [2023-11-19 07:56:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:14,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2023-11-19 07:56:14,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:14,205 INFO L225 Difference]: With dead ends: 5435 [2023-11-19 07:56:14,206 INFO L226 Difference]: Without dead ends: 5427 [2023-11-19 07:56:14,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:14,211 INFO L413 NwaCegarLoop]: 3111 mSDtfsCounter, 3113 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3113 SdHoareTripleChecker+Valid, 6215 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:14,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3113 Valid, 6215 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:56:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5427 states. [2023-11-19 07:56:14,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5427 to 2717. [2023-11-19 07:56:14,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 1412 states have (on average 1.8895184135977336) internal successors, (2668), 2441 states have internal predecessors, (2668), 223 states have call successors, (223), 64 states have call predecessors, (223), 63 states have return successors, (221), 220 states have call predecessors, (221), 221 states have call successors, (221) [2023-11-19 07:56:14,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3112 transitions. [2023-11-19 07:56:14,436 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3112 transitions. Word has length 11 [2023-11-19 07:56:14,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:14,437 INFO L495 AbstractCegarLoop]: Abstraction has 2717 states and 3112 transitions. [2023-11-19 07:56:14,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3112 transitions. [2023-11-19 07:56:14,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:56:14,438 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:14,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:14,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 07:56:14,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:14,649 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr206ASSERT_VIOLATIONMEMORY_LEAK === [__do_lo_send_writeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1060 more)] === [2023-11-19 07:56:14,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:14,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1328505432, now seen corresponding path program 1 times [2023-11-19 07:56:14,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:56:14,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193020615] [2023-11-19 07:56:14,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:14,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:14,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:56:14,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:56:14,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 07:56:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:15,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:56:15,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:15,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:15,461 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:56:15,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193020615] [2023-11-19 07:56:15,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193020615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:15,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:15,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:15,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189858860] [2023-11-19 07:56:15,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:15,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:15,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:56:15,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:15,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:15,465 INFO L87 Difference]: Start difference. First operand 2717 states and 3112 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2023-11-19 07:56:15,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:15,629 INFO L93 Difference]: Finished difference Result 2717 states and 3109 transitions. [2023-11-19 07:56:15,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:15,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) Word has length 12 [2023-11-19 07:56:15,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:15,648 INFO L225 Difference]: With dead ends: 2717 [2023-11-19 07:56:15,648 INFO L226 Difference]: Without dead ends: 2717 [2023-11-19 07:56:15,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:15,651 INFO L413 NwaCegarLoop]: 3105 mSDtfsCounter, 3103 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3103 SdHoareTripleChecker+Valid, 3105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:15,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3103 Valid, 3105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:15,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2717 states. [2023-11-19 07:56:15,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2717 to 2717. [2023-11-19 07:56:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 1412 states have (on average 1.8873937677053825) internal successors, (2665), 2441 states have internal predecessors, (2665), 223 states have call successors, (223), 64 states have call predecessors, (223), 63 states have return successors, (221), 220 states have call predecessors, (221), 221 states have call successors, (221) [2023-11-19 07:56:15,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 3109 transitions. [2023-11-19 07:56:15,735 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 3109 transitions. Word has length 12 [2023-11-19 07:56:15,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:15,736 INFO L495 AbstractCegarLoop]: Abstraction has 2717 states and 3109 transitions. [2023-11-19 07:56:15,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2023-11-19 07:56:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 3109 transitions. [2023-11-19 07:56:15,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:56:15,737 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:15,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:15,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:15,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:15,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [__do_lo_send_writeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1060 more)] === [2023-11-19 07:56:15,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:15,959 INFO L85 PathProgramCache]: Analyzing trace with hash 685641913, now seen corresponding path program 1 times [2023-11-19 07:56:15,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:56:15,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32968774] [2023-11-19 07:56:15,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:15,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:15,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:56:15,962 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:56:16,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 07:56:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:16,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:56:16,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:16,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:16,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:56:16,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32968774] [2023-11-19 07:56:16,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32968774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:16,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:16,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:56:16,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741672903] [2023-11-19 07:56:16,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:16,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:56:16,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:56:16,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:56:16,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:16,845 INFO L87 Difference]: Start difference. First operand 2717 states and 3109 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-19 07:56:17,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:17,036 INFO L93 Difference]: Finished difference Result 2744 states and 3143 transitions. [2023-11-19 07:56:17,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:56:17,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) Word has length 12 [2023-11-19 07:56:17,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:17,053 INFO L225 Difference]: With dead ends: 2744 [2023-11-19 07:56:17,054 INFO L226 Difference]: Without dead ends: 2744 [2023-11-19 07:56:17,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:56:17,055 INFO L413 NwaCegarLoop]: 3107 mSDtfsCounter, 84 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6201 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:17,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6201 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:56:17,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2023-11-19 07:56:17,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2718. [2023-11-19 07:56:17,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 1413 states have (on average 1.886765746638358) internal successors, (2666), 2442 states have internal predecessors, (2666), 223 states have call successors, (223), 64 states have call predecessors, (223), 63 states have return successors, (221), 220 states have call predecessors, (221), 221 states have call successors, (221) [2023-11-19 07:56:17,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3110 transitions. [2023-11-19 07:56:17,143 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3110 transitions. Word has length 12 [2023-11-19 07:56:17,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:17,144 INFO L495 AbstractCegarLoop]: Abstraction has 2718 states and 3110 transitions. [2023-11-19 07:56:17,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-19 07:56:17,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3110 transitions. [2023-11-19 07:56:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:56:17,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:17,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:17,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:17,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:17,355 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr206ASSERT_VIOLATIONMEMORY_LEAK === [__do_lo_send_writeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1060 more)] === [2023-11-19 07:56:17,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:17,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1231743209, now seen corresponding path program 1 times [2023-11-19 07:56:17,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:56:17,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662742526] [2023-11-19 07:56:17,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:17,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:17,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:56:17,362 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:56:17,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 07:56:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:18,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:56:18,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:18,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:18,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:56:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662742526] [2023-11-19 07:56:18,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662742526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:18,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:18,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:18,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873262759] [2023-11-19 07:56:18,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:18,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:18,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:56:18,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:18,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:18,162 INFO L87 Difference]: Start difference. First operand 2718 states and 3110 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2023-11-19 07:56:18,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:56:18,274 INFO L93 Difference]: Finished difference Result 2706 states and 3090 transitions. [2023-11-19 07:56:18,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:18,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) Word has length 12 [2023-11-19 07:56:18,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:56:18,291 INFO L225 Difference]: With dead ends: 2706 [2023-11-19 07:56:18,292 INFO L226 Difference]: Without dead ends: 2706 [2023-11-19 07:56:18,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:18,293 INFO L413 NwaCegarLoop]: 3085 mSDtfsCounter, 3086 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3086 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:56:18,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3086 Valid, 3085 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:56:18,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2023-11-19 07:56:18,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2706. [2023-11-19 07:56:18,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 1405 states have (on average 1.8875444839857651) internal successors, (2652), 2434 states have internal predecessors, (2652), 220 states have call successors, (220), 63 states have call predecessors, (220), 62 states have return successors, (218), 217 states have call predecessors, (218), 218 states have call successors, (218) [2023-11-19 07:56:18,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3090 transitions. [2023-11-19 07:56:18,369 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3090 transitions. Word has length 12 [2023-11-19 07:56:18,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:56:18,370 INFO L495 AbstractCegarLoop]: Abstraction has 2706 states and 3090 transitions. [2023-11-19 07:56:18,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 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) [2023-11-19 07:56:18,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3090 transitions. [2023-11-19 07:56:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 07:56:18,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:56:18,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:18,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:18,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:18,582 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr206ASSERT_VIOLATIONMEMORY_LEAK === [__do_lo_send_writeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, __do_lo_send_writeErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1060 more)] === [2023-11-19 07:56:18,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1971998239, now seen corresponding path program 1 times [2023-11-19 07:56:18,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:56:18,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994640511] [2023-11-19 07:56:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:18,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:56:18,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:56:18,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:56:18,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e992a269-f15c-4223-bcc7-6184d52f5524/bin/uautomizer-verify-uCwYo4JHxu/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 (6)] Waiting until timeout for monitored process [2023-11-19 07:56:19,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:19,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:56:19,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:19,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:19,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:56:19,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994640511] [2023-11-19 07:56:19,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994640511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:19,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:19,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:19,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233366373] [2023-11-19 07:56:19,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:19,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:19,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:56:19,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:19,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:19,458 INFO L87 Difference]: Start difference. First operand 2706 states and 3090 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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)