./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 46b0ad08a581b5bde0454ec418cbe0193c7ec6a3f6e007f87f30934488ee8554 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:20:58,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:20:58,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 22:20:58,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:20:58,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:20:58,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:20:58,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:20:58,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:20:58,615 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:20:58,620 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:20:58,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:20:58,622 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:20:58,623 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:20:58,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:20:58,625 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:20:58,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:20:58,626 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:20:58,626 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:20:58,627 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:20:58,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:20:58,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:20:58,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:20:58,629 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:20:58,630 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:20:58,630 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:20:58,630 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:20:58,631 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:20:58,632 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:20:58,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:20:58,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:20:58,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:58,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:20:58,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:20:58,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:20:58,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:20:58,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:20:58,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:20:58,637 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:20:58,637 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:20:58,637 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:20:58,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:20:58,638 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_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46b0ad08a581b5bde0454ec418cbe0193c7ec6a3f6e007f87f30934488ee8554 [2023-11-21 22:20:58,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:20:58,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:20:58,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:20:58,985 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:20:58,986 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:20:58,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2023-11-21 22:21:02,071 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:02,687 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:02,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2023-11-21 22:21:02,733 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/data/98c6fe565/1508a993c4194bfc832f5ced42aedea9/FLAGff724a903 [2023-11-21 22:21:02,751 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/data/98c6fe565/1508a993c4194bfc832f5ced42aedea9 [2023-11-21 22:21:02,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:02,759 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:02,763 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:02,763 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:02,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:02,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:02" (1/1) ... [2023-11-21 22:21:02,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e8daed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:02, skipping insertion in model container [2023-11-21 22:21:02,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:02" (1/1) ... [2023-11-21 22:21:02,902 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:21:03,476 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3504] [2023-11-21 22:21:03,478 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3506-3507] [2023-11-21 22:21:03,478 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3508-3510] [2023-11-21 22:21:03,479 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3511-3512] [2023-11-21 22:21:03,481 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3513] [2023-11-21 22:21:03,483 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3519-3520] [2023-11-21 22:21:03,485 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3521] [2023-11-21 22:21:03,486 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3524] [2023-11-21 22:21:03,501 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name lookup at C: *(*lookup)(struct tty_driver___0 *driver , struct inode___0 *inode , int idx ) [3838-3839] [2023-11-21 22:21:03,501 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3840] [2023-11-21 22:21:03,502 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3841] [2023-11-21 22:21:03,506 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3872] [2023-11-21 22:21:03,507 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3873] [2023-11-21 22:21:03,508 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name poll_put_char at C: (*poll_put_char)(struct tty_driver___0 *driver , int line , char ch ) [3874] [2023-11-21 22:21:03,511 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3934] [2023-11-21 22:21:03,511 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3935] [2023-11-21 22:21:03,512 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3936] [2023-11-21 22:21:03,512 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3937] [2023-11-21 22:21:03,512 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3938] [2023-11-21 22:21:03,513 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3939] [2023-11-21 22:21:04,179 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:04,244 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:21:04,355 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3504] [2023-11-21 22:21:04,355 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name readpages at C: (*readpages)(struct file___0 *filp , struct address_space___0 *mapping , struct list_head *pages , unsigned int nr_pages ) [3506-3507] [2023-11-21 22:21:04,355 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name write_begin at C: (*write_begin)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int flags , struct page **pagep , void **fsdata ) [3508-3510] [2023-11-21 22:21:04,356 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name write_end at C: (*write_end)(struct file___0 * , struct address_space___0 *mapping , loff_t pos , unsigned int len , unsigned int copied , struct page *page , void *fsdata ) [3511-3512] [2023-11-21 22:21:04,356 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3513] [2023-11-21 22:21:04,357 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name get_xip_mem at C: (*get_xip_mem)(struct address_space___0 * , unsigned long , int , void ** , unsigned long * ) [3519-3520] [2023-11-21 22:21:04,357 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3521] [2023-11-21 22:21:04,357 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name error_remove_page at C: (*error_remove_page)(struct address_space___0 * , struct page * ) [3524] [2023-11-21 22:21:04,365 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name lookup at C: *(*lookup)(struct tty_driver___0 *driver , struct inode___0 *inode , int idx ) [3838-3839] [2023-11-21 22:21:04,365 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name install at C: (*install)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3840] [2023-11-21 22:21:04,366 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name remove at C: (*remove)(struct tty_driver___0 *driver , struct tty_struct___0 *tty ) [3841] [2023-11-21 22:21:04,367 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name poll_init at C: (*poll_init)(struct tty_driver___0 *driver , int line , char *options ) [3872] [2023-11-21 22:21:04,367 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name poll_get_char at C: (*poll_get_char)(struct tty_driver___0 *driver , int line ) [3873] [2023-11-21 22:21:04,367 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name poll_put_char at C: (*poll_put_char)(struct tty_driver___0 *driver , int line , char ch ) [3874] [2023-11-21 22:21:04,369 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3934] [2023-11-21 22:21:04,369 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3935] [2023-11-21 22:21:04,369 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3936] [2023-11-21 22:21:04,370 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3937] [2023-11-21 22:21:04,370 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name activate at C: (*activate)(struct tty_port___0 *port , struct tty_struct___0 *tty ) [3938] [2023-11-21 22:21:04,370 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3939] [2023-11-21 22:21:04,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:04,493 WARN L675 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:21:04,500 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:21:04,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04 WrapperNode [2023-11-21 22:21:04,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:04,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:04,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:21:04,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:21:04,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,745 INFO L138 Inliner]: procedures = 98, calls = 1035, calls flagged for inlining = 46, calls inlined = 44, statements flattened = 1969 [2023-11-21 22:21:04,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:04,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:21:04,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:21:04,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:21:04,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,784 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,872 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:21:04,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:04,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:05,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:05,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:21:05,046 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:21:05,046 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:21:05,046 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:21:05,047 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (1/1) ... [2023-11-21 22:21:05,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:05,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:05,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:05,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:21:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2023-11-21 22:21:05,127 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2023-11-21 22:21:05,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:21:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:21:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:21:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-21 22:21:05,128 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-21 22:21:05,128 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-21 22:21:05,129 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-21 22:21:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:21:05,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:21:05,129 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:21:05,129 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:21:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2023-11-21 22:21:05,130 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2023-11-21 22:21:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:21:05,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:21:05,130 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-21 22:21:05,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-21 22:21:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:21:05,131 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:21:05,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2023-11-21 22:21:05,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2023-11-21 22:21:05,132 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:21:05,134 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:21:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:21:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-21 22:21:05,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-21 22:21:05,136 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-11-21 22:21:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:21:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:21:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:21:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:21:05,137 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-11-21 22:21:05,137 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-11-21 22:21:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2023-11-21 22:21:05,138 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2023-11-21 22:21:05,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:21:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:21:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-11-21 22:21:05,139 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-11-21 22:21:05,139 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:21:05,139 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:21:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 22:21:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 22:21:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-21 22:21:05,140 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-21 22:21:05,140 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2023-11-21 22:21:05,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2023-11-21 22:21:05,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2023-11-21 22:21:05,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2023-11-21 22:21:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:21:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2023-11-21 22:21:05,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2023-11-21 22:21:05,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 22:21:05,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 22:21:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2023-11-21 22:21:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2023-11-21 22:21:05,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:21:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:21:05,519 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:21:05,522 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:21:05,681 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:21:05,768 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-21 22:21:07,626 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:21:08,436 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:21:08,436 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:21:08,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:08 BoogieIcfgContainer [2023-11-21 22:21:08,438 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:21:08,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:21:08,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:21:08,444 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:21:08,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:21:02" (1/3) ... [2023-11-21 22:21:08,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349a389c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:08, skipping insertion in model container [2023-11-21 22:21:08,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:04" (2/3) ... [2023-11-21 22:21:08,445 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@349a389c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:08, skipping insertion in model container [2023-11-21 22:21:08,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:08" (3/3) ... [2023-11-21 22:21:08,447 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2023-11-21 22:21:08,466 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:21:08,466 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-21 22:21:08,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:21:08,529 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@519735ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:21:08,529 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-21 22:21:08,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 342 states, 233 states have (on average 1.4935622317596566) internal successors, (348), 253 states have internal predecessors, (348), 74 states have call successors, (74), 24 states have call predecessors, (74), 22 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-11-21 22:21:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-21 22:21:08,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:08,547 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:08,547 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:08,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:08,553 INFO L85 PathProgramCache]: Analyzing trace with hash -563043007, now seen corresponding path program 1 times [2023-11-21 22:21:08,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:08,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49760058] [2023-11-21 22:21:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:08,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:09,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:09,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:09,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:09,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:09,371 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 22:21:09,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:09,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49760058] [2023-11-21 22:21:09,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49760058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:09,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:09,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:21:09,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108749412] [2023-11-21 22:21:09,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:09,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:09,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:09,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:09,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:09,414 INFO L87 Difference]: Start difference. First operand has 342 states, 233 states have (on average 1.4935622317596566) internal successors, (348), 253 states have internal predecessors, (348), 74 states have call successors, (74), 24 states have call predecessors, (74), 22 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-21 22:21:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:11,013 INFO L93 Difference]: Finished difference Result 903 states and 1318 transitions. [2023-11-21 22:21:11,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:21:11,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-11-21 22:21:11,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:11,042 INFO L225 Difference]: With dead ends: 903 [2023-11-21 22:21:11,043 INFO L226 Difference]: Without dead ends: 560 [2023-11-21 22:21:11,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:21:11,063 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 441 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:11,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1714 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 22:21:11,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-21 22:21:11,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 546. [2023-11-21 22:21:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 385 states have (on average 1.4623376623376623) internal successors, (563), 398 states have internal predecessors, (563), 116 states have call successors, (116), 35 states have call predecessors, (116), 35 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-11-21 22:21:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 795 transitions. [2023-11-21 22:21:11,204 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 795 transitions. Word has length 46 [2023-11-21 22:21:11,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:11,205 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 795 transitions. [2023-11-21 22:21:11,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-21 22:21:11,206 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 795 transitions. [2023-11-21 22:21:11,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-21 22:21:11,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:11,210 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:11,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:21:11,211 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:11,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1011913816, now seen corresponding path program 1 times [2023-11-21 22:21:11,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:11,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822523937] [2023-11-21 22:21:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:11,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:11,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:11,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:11,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:11,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:11,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:11,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:11,654 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-21 22:21:11,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:11,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822523937] [2023-11-21 22:21:11,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822523937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:11,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:11,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:21:11,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012930721] [2023-11-21 22:21:11,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:11,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:11,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:11,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:11,658 INFO L87 Difference]: Start difference. First operand 546 states and 795 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-21 22:21:12,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:12,721 INFO L93 Difference]: Finished difference Result 1186 states and 1721 transitions. [2023-11-21 22:21:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:21:12,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 50 [2023-11-21 22:21:12,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:12,728 INFO L225 Difference]: With dead ends: 1186 [2023-11-21 22:21:12,728 INFO L226 Difference]: Without dead ends: 658 [2023-11-21 22:21:12,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:21:12,736 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 181 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:12,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1322 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:21:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-11-21 22:21:12,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 636. [2023-11-21 22:21:12,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 461 states have (on average 1.4685466377440346) internal successors, (677), 474 states have internal predecessors, (677), 123 states have call successors, (123), 42 states have call predecessors, (123), 42 states have return successors, (123), 123 states have call predecessors, (123), 123 states have call successors, (123) [2023-11-21 22:21:12,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 923 transitions. [2023-11-21 22:21:12,801 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 923 transitions. Word has length 50 [2023-11-21 22:21:12,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:12,801 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 923 transitions. [2023-11-21 22:21:12,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-21 22:21:12,802 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 923 transitions. [2023-11-21 22:21:12,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 22:21:12,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:12,806 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:12,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:21:12,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:12,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:12,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1837748108, now seen corresponding path program 1 times [2023-11-21 22:21:12,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:12,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337084875] [2023-11-21 22:21:12,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:12,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:13,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:13,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:13,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:13,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:13,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:21:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-21 22:21:13,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:13,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337084875] [2023-11-21 22:21:13,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337084875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:13,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:13,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:21:13,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094005697] [2023-11-21 22:21:13,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:13,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:21:13,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:13,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:21:13,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:21:13,394 INFO L87 Difference]: Start difference. First operand 636 states and 923 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-21 22:21:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:14,951 INFO L93 Difference]: Finished difference Result 1738 states and 2612 transitions. [2023-11-21 22:21:14,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:21:14,952 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 64 [2023-11-21 22:21:14,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:14,961 INFO L225 Difference]: With dead ends: 1738 [2023-11-21 22:21:14,961 INFO L226 Difference]: Without dead ends: 1134 [2023-11-21 22:21:14,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:21:14,966 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 739 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:14,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 2242 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-21 22:21:14,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2023-11-21 22:21:15,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 624. [2023-11-21 22:21:15,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 451 states have (on average 1.4678492239467849) internal successors, (662), 465 states have internal predecessors, (662), 122 states have call successors, (122), 41 states have call predecessors, (122), 41 states have return successors, (122), 121 states have call predecessors, (122), 122 states have call successors, (122) [2023-11-21 22:21:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 906 transitions. [2023-11-21 22:21:15,050 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 906 transitions. Word has length 64 [2023-11-21 22:21:15,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:15,053 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 906 transitions. [2023-11-21 22:21:15,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-21 22:21:15,053 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 906 transitions. [2023-11-21 22:21:15,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-21 22:21:15,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:15,059 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:15,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:21:15,060 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:15,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:15,060 INFO L85 PathProgramCache]: Analyzing trace with hash -596934397, now seen corresponding path program 1 times [2023-11-21 22:21:15,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:15,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532138500] [2023-11-21 22:21:15,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:15,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-21 22:21:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-21 22:21:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-21 22:21:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:15,569 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-21 22:21:15,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:15,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532138500] [2023-11-21 22:21:15,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532138500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:15,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:15,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:21:15,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189136752] [2023-11-21 22:21:15,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:15,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:15,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:15,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:15,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:15,572 INFO L87 Difference]: Start difference. First operand 624 states and 906 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 22:21:16,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:16,681 INFO L93 Difference]: Finished difference Result 1406 states and 2077 transitions. [2023-11-21 22:21:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:21:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2023-11-21 22:21:16,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:16,688 INFO L225 Difference]: With dead ends: 1406 [2023-11-21 22:21:16,689 INFO L226 Difference]: Without dead ends: 814 [2023-11-21 22:21:16,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:21:16,692 INFO L413 NwaCegarLoop]: 383 mSDtfsCounter, 308 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 339 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:16,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [339 Valid, 1231 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:21:16,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2023-11-21 22:21:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 767. [2023-11-21 22:21:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 587 states have (on average 1.4480408858603067) internal successors, (850), 601 states have internal predecessors, (850), 124 states have call successors, (124), 46 states have call predecessors, (124), 46 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2023-11-21 22:21:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1098 transitions. [2023-11-21 22:21:16,751 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1098 transitions. Word has length 79 [2023-11-21 22:21:16,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:16,754 INFO L495 AbstractCegarLoop]: Abstraction has 767 states and 1098 transitions. [2023-11-21 22:21:16,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 22:21:16,754 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1098 transitions. [2023-11-21 22:21:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-21 22:21:16,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:16,757 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:16,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:21:16,758 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:16,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:16,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1540285859, now seen corresponding path program 1 times [2023-11-21 22:21:16,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:16,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101871796] [2023-11-21 22:21:16,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:16,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:17,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:21:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:21:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:21:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-21 22:21:17,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:17,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101871796] [2023-11-21 22:21:17,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101871796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:17,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:17,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:21:17,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600763358] [2023-11-21 22:21:17,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:17,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:17,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:17,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:17,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:17,364 INFO L87 Difference]: Start difference. First operand 767 states and 1098 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-21 22:21:18,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:18,517 INFO L93 Difference]: Finished difference Result 1220 states and 1719 transitions. [2023-11-21 22:21:18,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:21:18,517 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2023-11-21 22:21:18,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:18,527 INFO L225 Difference]: With dead ends: 1220 [2023-11-21 22:21:18,529 INFO L226 Difference]: Without dead ends: 1212 [2023-11-21 22:21:18,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:21:18,532 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 342 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:18,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1343 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:21:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2023-11-21 22:21:18,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1186. [2023-11-21 22:21:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 918 states have (on average 1.408496732026144) internal successors, (1293), 937 states have internal predecessors, (1293), 188 states have call successors, (188), 70 states have call predecessors, (188), 70 states have return successors, (188), 186 states have call predecessors, (188), 188 states have call successors, (188) [2023-11-21 22:21:18,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1669 transitions. [2023-11-21 22:21:18,618 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1669 transitions. Word has length 82 [2023-11-21 22:21:18,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:18,619 INFO L495 AbstractCegarLoop]: Abstraction has 1186 states and 1669 transitions. [2023-11-21 22:21:18,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-21 22:21:18,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1669 transitions. [2023-11-21 22:21:18,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:21:18,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:18,622 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:18,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:21:18,622 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:18,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:18,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1333700546, now seen corresponding path program 1 times [2023-11-21 22:21:18,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:18,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059314041] [2023-11-21 22:21:18,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:18,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:18,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:19,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:19,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:21:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:21:19,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:21:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-21 22:21:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 22:21:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-21 22:21:19,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:19,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059314041] [2023-11-21 22:21:19,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059314041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:19,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:19,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:21:19,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890363573] [2023-11-21 22:21:19,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:19,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:19,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:19,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:19,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:19,166 INFO L87 Difference]: Start difference. First operand 1186 states and 1669 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-21 22:21:20,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:20,442 INFO L93 Difference]: Finished difference Result 2689 states and 3817 transitions. [2023-11-21 22:21:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:21:20,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 93 [2023-11-21 22:21:20,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:20,455 INFO L225 Difference]: With dead ends: 2689 [2023-11-21 22:21:20,455 INFO L226 Difference]: Without dead ends: 1560 [2023-11-21 22:21:20,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:21:20,459 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 397 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1849 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:20,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1849 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:21:20,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2023-11-21 22:21:20,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1526. [2023-11-21 22:21:20,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1190 states have (on average 1.4126050420168068) internal successors, (1681), 1211 states have internal predecessors, (1681), 239 states have call successors, (239), 87 states have call predecessors, (239), 87 states have return successors, (239), 237 states have call predecessors, (239), 239 states have call successors, (239) [2023-11-21 22:21:20,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 2159 transitions. [2023-11-21 22:21:20,558 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 2159 transitions. Word has length 93 [2023-11-21 22:21:20,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:20,563 INFO L495 AbstractCegarLoop]: Abstraction has 1526 states and 2159 transitions. [2023-11-21 22:21:20,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-21 22:21:20,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 2159 transitions. [2023-11-21 22:21:20,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-21 22:21:20,572 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:20,572 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:20,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:21:20,572 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:20,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:20,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1784608538, now seen corresponding path program 1 times [2023-11-21 22:21:20,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:20,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022710621] [2023-11-21 22:21:20,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:20,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:20,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:20,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:20,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:20,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:21:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:21:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:21:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-21 22:21:21,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:21,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022710621] [2023-11-21 22:21:21,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022710621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:21,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:21,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:21:21,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284808612] [2023-11-21 22:21:21,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:21,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:21,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:21,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:21,057 INFO L87 Difference]: Start difference. First operand 1526 states and 2159 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-21 22:21:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:22,278 INFO L93 Difference]: Finished difference Result 3005 states and 4295 transitions. [2023-11-21 22:21:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-21 22:21:22,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 92 [2023-11-21 22:21:22,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:22,292 INFO L225 Difference]: With dead ends: 3005 [2023-11-21 22:21:22,292 INFO L226 Difference]: Without dead ends: 1920 [2023-11-21 22:21:22,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:21:22,299 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 401 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:22,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 1888 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:21:22,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1920 states. [2023-11-21 22:21:22,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1920 to 1882. [2023-11-21 22:21:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1472 states have (on average 1.4171195652173914) internal successors, (2086), 1495 states have internal predecessors, (2086), 292 states have call successors, (292), 108 states have call predecessors, (292), 108 states have return successors, (292), 290 states have call predecessors, (292), 292 states have call successors, (292) [2023-11-21 22:21:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2670 transitions. [2023-11-21 22:21:22,419 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2670 transitions. Word has length 92 [2023-11-21 22:21:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:22,419 INFO L495 AbstractCegarLoop]: Abstraction has 1882 states and 2670 transitions. [2023-11-21 22:21:22,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-21 22:21:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2670 transitions. [2023-11-21 22:21:22,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-21 22:21:22,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:22,422 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:22,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:21:22,423 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:22,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:22,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1317959021, now seen corresponding path program 1 times [2023-11-21 22:21:22,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:22,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318751329] [2023-11-21 22:21:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:22,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:21:22,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:21:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:21:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-21 22:21:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-21 22:21:22,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:22,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318751329] [2023-11-21 22:21:22,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318751329] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:21:22,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334414115] [2023-11-21 22:21:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:22,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:21:22,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:22,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:21:23,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:21:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:23,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 2502 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:21:23,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-21 22:21:23,754 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:21:23,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334414115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:23,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:21:23,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-21 22:21:23,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516431530] [2023-11-21 22:21:23,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:23,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:21:23,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:21:23,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:21:23,764 INFO L87 Difference]: Start difference. First operand 1882 states and 2670 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 22:21:24,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:24,621 INFO L93 Difference]: Finished difference Result 4271 states and 6085 transitions. [2023-11-21 22:21:24,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:21:24,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2023-11-21 22:21:24,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:24,650 INFO L225 Difference]: With dead ends: 4271 [2023-11-21 22:21:24,650 INFO L226 Difference]: Without dead ends: 4266 [2023-11-21 22:21:24,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:21:24,653 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 842 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:24,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1208 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-21 22:21:24,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2023-11-21 22:21:24,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3835. [2023-11-21 22:21:24,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3835 states, 3008 states have (on average 1.4188829787234043) internal successors, (4268), 3044 states have internal predecessors, (4268), 598 states have call successors, (598), 219 states have call predecessors, (598), 219 states have return successors, (598), 595 states have call predecessors, (598), 598 states have call successors, (598) [2023-11-21 22:21:24,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3835 states to 3835 states and 5464 transitions. [2023-11-21 22:21:24,921 INFO L78 Accepts]: Start accepts. Automaton has 3835 states and 5464 transitions. Word has length 97 [2023-11-21 22:21:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:24,922 INFO L495 AbstractCegarLoop]: Abstraction has 3835 states and 5464 transitions. [2023-11-21 22:21:24,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 22:21:24,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3835 states and 5464 transitions. [2023-11-21 22:21:24,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-21 22:21:24,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:24,925 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:24,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:21:25,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-21 22:21:25,150 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:25,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:25,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2092944442, now seen corresponding path program 1 times [2023-11-21 22:21:25,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962279012] [2023-11-21 22:21:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:25,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:25,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:25,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:21:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:21:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:21:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-21 22:21:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-21 22:21:25,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:25,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962279012] [2023-11-21 22:21:25,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962279012] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:21:25,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501894614] [2023-11-21 22:21:25,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:25,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:21:25,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:25,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:21:25,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:21:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:26,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:21:26,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:26,542 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-21 22:21:26,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:21:26,711 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-21 22:21:26,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501894614] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:21:26,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:21:26,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 9 [2023-11-21 22:21:26,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658599650] [2023-11-21 22:21:26,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:21:26,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:21:26,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:26,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:21:26,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:21:26,715 INFO L87 Difference]: Start difference. First operand 3835 states and 5464 transitions. Second operand has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 6 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-21 22:21:28,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:21:28,645 INFO L93 Difference]: Finished difference Result 5398 states and 7660 transitions. [2023-11-21 22:21:28,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-21 22:21:28,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 6 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 98 [2023-11-21 22:21:28,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:21:28,727 INFO L225 Difference]: With dead ends: 5398 [2023-11-21 22:21:28,727 INFO L226 Difference]: Without dead ends: 5393 [2023-11-21 22:21:28,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-11-21 22:21:28,730 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1943 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 742 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 742 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:21:28,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 1419 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [742 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-21 22:21:28,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5393 states. [2023-11-21 22:21:29,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5393 to 4923. [2023-11-21 22:21:29,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4923 states, 3868 states have (on average 1.405635987590486) internal successors, (5437), 3910 states have internal predecessors, (5437), 768 states have call successors, (768), 280 states have call predecessors, (768), 280 states have return successors, (768), 764 states have call predecessors, (768), 768 states have call successors, (768) [2023-11-21 22:21:29,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 6973 transitions. [2023-11-21 22:21:29,127 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 6973 transitions. Word has length 98 [2023-11-21 22:21:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:21:29,128 INFO L495 AbstractCegarLoop]: Abstraction has 4923 states and 6973 transitions. [2023-11-21 22:21:29,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 6 states have call successors, (27), 6 states have call predecessors, (27), 3 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2023-11-21 22:21:29,128 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 6973 transitions. [2023-11-21 22:21:29,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-21 22:21:29,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:29,136 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:29,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:21:29,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-21 22:21:29,356 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-21 22:21:29,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:29,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2045881954, now seen corresponding path program 1 times [2023-11-21 22:21:29,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:29,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384356756] [2023-11-21 22:21:29,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:29,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:21:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:21:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:21:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-21 22:21:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:21:30,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:21:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:21:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-21 22:21:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:21:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-21 22:21:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 71 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-21 22:21:30,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:30,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384356756] [2023-11-21 22:21:30,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384356756] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:21:30,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771371212] [2023-11-21 22:21:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:30,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:21:30,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:30,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:21:30,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab05bec2-5a7b-47e3-a423-d941d4951e08/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:21:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:21:30,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:21:31,059 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 48 proven. 74 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-21 22:21:31,060 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:21:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-11-21 22:21:31,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771371212] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:21:31,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-21 22:21:31,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 16 [2023-11-21 22:21:31,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77535765] [2023-11-21 22:21:31,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-21 22:21:31,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-21 22:21:31,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:31,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-21 22:21:31,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-11-21 22:21:31,224 INFO L87 Difference]: Start difference. First operand 4923 states and 6973 transitions. Second operand has 16 states, 16 states have (on average 11.125) internal successors, (178), 13 states have internal predecessors, (178), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)