./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:06:10,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:06:10,260 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-19 04:06:10,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:06:10,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:06:10,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:06:10,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:06:10,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:06:10,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:06:10,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:06:10,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:06:10,296 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:06:10,296 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:06:10,297 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:06:10,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:06:10,298 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:06:10,299 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:06:10,300 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:06:10,300 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:06:10,301 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:06:10,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:06:10,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:06:10,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:06:10,304 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:06:10,305 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:06:10,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:06:10,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc21d3f2365aa3e9759266a2897b17abd63f704e2f2c46d2220f73d4b814d4db [2023-11-19 04:06:10,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:06:10,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:06:10,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:06:10,685 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:06:10,686 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:06:10,688 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-19 04:06:14,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:06:14,816 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:06:14,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--block--virtio_blk.ko.cil.i [2023-11-19 04:06:14,890 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/data/37a4cdf55/d11d881201464be9847c5bf44b616f7d/FLAG9327f406a [2023-11-19 04:06:14,910 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/data/37a4cdf55/d11d881201464be9847c5bf44b616f7d [2023-11-19 04:06:14,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:06:14,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:06:14,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:06:14,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:06:14,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:06:14,930 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:14" (1/1) ... [2023-11-19 04:06:14,931 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c091d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:14, skipping insertion in model container [2023-11-19 04:06:14,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:14" (1/1) ... [2023-11-19 04:06:15,076 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:06:18,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:06:18,608 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:06:18,783 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 *)"include/linux/virtio_config.h"), "i" (99), "i" (12UL)); [4816-4817] [2023-11-19 04:06:18,791 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 *)"include/linux/virtio_config.h"), "i" (178), "i" (12UL)); [4854-4855] [2023-11-19 04:06:18,861 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 *)"drivers/block/virtio_blk.c"), "i" (172), "i" (12UL)); [5304-5305] [2023-11-19 04:06:18,865 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 *)"drivers/block/virtio_blk.c"), "i" (198), "i" (12UL)); [5360-5361] [2023-11-19 04:06:18,889 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 *)"drivers/block/virtio_blk.c"), "i" (285), "i" (12UL)); [5562-5563] [2023-11-19 04:06:18,891 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 *)"drivers/block/virtio_blk.c"), "i" (287), "i" (12UL)); [5612-5613] [2023-11-19 04:06:18,893 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 *)"drivers/block/virtio_blk.c"), "i" (289), "i" (12UL)); [5662-5663] [2023-11-19 04:06:18,904 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 *)"drivers/block/virtio_blk.c"), "i" (348), "i" (12UL)); [5800-5801] [2023-11-19 04:06:18,913 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 *)"drivers/block/virtio_blk.c"), "i" (391), "i" (12UL)); [5911-5912] [2023-11-19 04:06:18,924 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 *)"drivers/block/virtio_blk.c"), "i" (478), "i" (12UL)); [6126-6127] [2023-11-19 04:06:18,932 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 *)"drivers/block/virtio_blk.c"), "i" (512), "i" (12UL)); [6214-6215] [2023-11-19 04:06:18,934 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 *)"drivers/block/virtio_blk.c"), "i" (533), "i" (12UL)); [6269-6270] [2023-11-19 04:06:18,944 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 *)"drivers/block/virtio_blk.c"), "i" (591), "i" (12UL)); [6454-6455] [2023-11-19 04:06:18,957 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 *)"drivers/block/virtio_blk.c"), "i" (669), "i" (12UL)); [6605-6606] [2023-11-19 04:06:18,959 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 *)"drivers/block/virtio_blk.c"), "i" (691), "i" (12UL)); [6671-6672] [2023-11-19 04:06:18,961 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 *)"drivers/block/virtio_blk.c"), "i" (700), "i" (12UL)); [6744-6745] [2023-11-19 04:06:18,968 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 *)"drivers/block/virtio_blk.c"), "i" (709), "i" (12UL)); [6818-6819] [2023-11-19 04:06:18,969 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 *)"drivers/block/virtio_blk.c"), "i" (716), "i" (12UL)); [6888-6889] [2023-11-19 04:06:18,971 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 *)"drivers/block/virtio_blk.c"), "i" (722), "i" (12UL)); [6958-6959] [2023-11-19 04:06:18,975 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 *)"drivers/block/virtio_blk.c"), "i" (728), "i" (12UL)); [7028-7029] [2023-11-19 04:06:19,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:06:19,366 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:06:19,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19 WrapperNode [2023-11-19 04:06:19,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:06:19,368 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:06:19,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:06:19,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:06:19,377 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:19,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:19,969 INFO L138 Inliner]: procedures = 554, calls = 1545, calls flagged for inlining = 867, calls inlined = 1289, statements flattened = 13459 [2023-11-19 04:06:19,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:06:19,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:06:19,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:06:19,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:06:19,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:19,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:20,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:20,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:20,388 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:20,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:20,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:20,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:20,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:06:20,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:06:20,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:06:20,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:06:20,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:19" (1/1) ... [2023-11-19 04:06:20,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:06:20,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:06:20,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:06:20,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eef5369-dc89-45f1-959c-c4e1620e7a68/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:06:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:06:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:06:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:06:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:06:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:06:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:06:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:06:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:06:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:06:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2023-11-19 04:06:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2023-11-19 04:06:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:06:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:06:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:06:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:06:20,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:06:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:06:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:06:20,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:06:20,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:06:21,540 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:06:21,547 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:06:32,887 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint main_returnLabel#1: assume !(#valid == main_old_#valid#1); [2023-11-19 04:06:32,888 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint main_returnLabel#1: assume #valid == main_old_#valid#1;assume #valid == main_old_#valid#1;#t~ret874#1 := main_#res#1;assume { :end_inline_main } true; [2023-11-19 04:06:32,890 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_5_returnLabel#1: havoc ldv_entry_EMGentry_5_#t~ret664#1, ldv_entry_EMGentry_5_#t~ret665#1, ldv_entry_EMGentry_5_#t~ret666#1, ldv_entry_EMGentry_5_#t~ret667#1, ldv_entry_EMGentry_5_~arg0#1.base, ldv_entry_EMGentry_5_~arg0#1.offset, ldv_entry_EMGentry_5_~ldv_5_exit_fini_default~0#1.base, ldv_entry_EMGentry_5_~ldv_5_exit_fini_default~0#1.offset, ldv_entry_EMGentry_5_~ldv_5_init_init_default~0#1.base, ldv_entry_EMGentry_5_~ldv_5_init_init_default~0#1.offset, ldv_entry_EMGentry_5_~ldv_5_ret_default~0#1, ldv_entry_EMGentry_5_~tmp~38#1, ldv_entry_EMGentry_5_~tmp___0~25#1;havoc ldv_entry_EMGentry_5_#in~arg0#1.base, ldv_entry_EMGentry_5_#in~arg0#1.offset;assume { :end_inline_ldv_entry_EMGentry_5 } true;main_#res#1 := 0; [2023-11-19 04:06:32,891 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:06:33,006 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:06:42,212 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:06:42,212 INFO L302 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-19 04:06:42,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:42 BoogieIcfgContainer [2023-11-19 04:06:42,240 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:06:42,243 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:06:42,243 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:06:42,256 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:06:42,257 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:42" (1/1) ... [2023-11-19 04:06:42,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:06:42,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:42,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3324 states and 3819 transitions. [2023-11-19 04:06:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 3819 transitions. [2023-11-19 04:06:42,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:06:42,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:42,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:43,397 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 04:06:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:43,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3323 states and 3818 transitions. [2023-11-19 04:06:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3323 states and 3818 transitions. [2023-11-19 04:06:43,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:06:43,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:43,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:44,386 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 04:06:44,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:44,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3821 states to 3325 states and 3821 transitions. [2023-11-19 04:06:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 3821 transitions. [2023-11-19 04:06:44,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:06:44,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:44,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:44,879 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 04:06:45,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:45,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3831 states to 3331 states and 3831 transitions. [2023-11-19 04:06:45,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 3831 transitions. [2023-11-19 04:06:45,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:06:45,230 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:45,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:46,079 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 04:06:46,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3830 states to 3330 states and 3830 transitions. [2023-11-19 04:06:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3330 states and 3830 transitions. [2023-11-19 04:06:46,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:06:46,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:46,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:46,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:46,793 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 04:06:47,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:47,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3328 states and 3826 transitions. [2023-11-19 04:06:47,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 3826 transitions. [2023-11-19 04:06:47,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:06:47,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:47,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:47,376 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 04:06:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:47,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3331 states and 3829 transitions. [2023-11-19 04:06:47,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 3829 transitions. [2023-11-19 04:06:47,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:06:47,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:47,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:47,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:47,722 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 04:06:48,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:48,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3339 states and 3841 transitions. [2023-11-19 04:06:48,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3339 states and 3841 transitions. [2023-11-19 04:06:48,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:06:48,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:48,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:49,118 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 04:06:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3338 states and 3840 transitions. [2023-11-19 04:06:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3338 states and 3840 transitions. [2023-11-19 04:06:49,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:06:49,254 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:49,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:49,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:50,220 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 04:06:50,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3839 states to 3337 states and 3839 transitions. [2023-11-19 04:06:50,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3337 states and 3839 transitions. [2023-11-19 04:06:50,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:06:50,738 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:50,958 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 04:06:51,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3835 states to 3335 states and 3835 transitions. [2023-11-19 04:06:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 3835 transitions. [2023-11-19 04:06:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:06:51,441 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:51,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:51,860 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 04:06:52,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3834 states to 3334 states and 3834 transitions. [2023-11-19 04:06:52,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 3834 transitions. [2023-11-19 04:06:52,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:06:52,036 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:52,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:52,238 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 04:06:52,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:52,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3835 states to 3335 states and 3835 transitions. [2023-11-19 04:06:52,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3335 states and 3835 transitions. [2023-11-19 04:06:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:06:52,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:52,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:52,597 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 04:06:52,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:52,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3840 states to 3340 states and 3840 transitions. [2023-11-19 04:06:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 3840 transitions. [2023-11-19 04:06:52,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 04:06:52,646 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:52,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:06:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.