./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 0e0057cc 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_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.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_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 46b0ad08a581b5bde0454ec418cbe0193c7ec6a3f6e007f87f30934488ee8554 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:05:27,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:05:27,938 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-25 00:05:27,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:05:27,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:05:27,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:05:27,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:05:27,997 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:05:27,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:05:28,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:05:28,004 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:05:28,005 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:05:28,006 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:05:28,007 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:05:28,008 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:05:28,009 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:05:28,009 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:05:28,010 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:05:28,010 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:05:28,011 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:05:28,011 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:05:28,012 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:05:28,013 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:05:28,014 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:05:28,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:05:28,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:05:28,015 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:05:28,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:05:28,016 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:05:28,016 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-25 00:05:28,018 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:05:28,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:05:28,018 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:05:28,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:05:28,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:05:28,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:05:28,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:28,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:05:28,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:05:28,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:05:28,021 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:05:28,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:05:28,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:05:28,022 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:05:28,022 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:05:28,023 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:05:28,023 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46b0ad08a581b5bde0454ec418cbe0193c7ec6a3f6e007f87f30934488ee8554 [2023-11-25 00:05:28,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:05:28,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:05:28,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:05:28,360 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:05:28,361 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:05:28,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2023-11-25 00:05:31,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:05:32,184 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:05:32,188 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2023-11-25 00:05:32,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/data/fd5e6f00e/60e77bec704c46a98a992fcf0027f266/FLAG663f5d8c7 [2023-11-25 00:05:32,254 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/data/fd5e6f00e/60e77bec704c46a98a992fcf0027f266 [2023-11-25 00:05:32,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:05:32,259 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:05:32,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:32,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:05:32,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:05:32,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:32" (1/1) ... [2023-11-25 00:05:32,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378e0b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:32, skipping insertion in model container [2023-11-25 00:05:32,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:32" (1/1) ... [2023-11-25 00:05:32,421 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:05:33,024 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3504] [2023-11-25 00:05:33,025 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] [2023-11-25 00:05:33,025 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] [2023-11-25 00:05:33,026 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] [2023-11-25 00:05:33,027 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3513] [2023-11-25 00:05:33,031 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] [2023-11-25 00:05:33,032 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3521] [2023-11-25 00:05:33,032 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] [2023-11-25 00:05:33,092 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] [2023-11-25 00:05:33,094 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] [2023-11-25 00:05:33,094 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] [2023-11-25 00:05:33,095 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] [2023-11-25 00:05:33,096 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] [2023-11-25 00:05:33,096 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] [2023-11-25 00:05:33,121 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3934] [2023-11-25 00:05:33,121 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3935] [2023-11-25 00:05:33,121 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3936] [2023-11-25 00:05:33,122 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3937] [2023-11-25 00:05:33,122 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] [2023-11-25 00:05:33,122 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3939] [2023-11-25 00:05:33,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:33,863 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:05:33,999 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name writepages at C: (*writepages)(struct address_space___0 * , struct writeback_control * ) [3504] [2023-11-25 00:05:33,999 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] [2023-11-25 00:05:34,000 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] [2023-11-25 00:05:34,000 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] [2023-11-25 00:05:34,001 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name bmap at C: (*bmap)(struct address_space___0 * , sector_t ) [3513] [2023-11-25 00:05:34,003 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] [2023-11-25 00:05:34,003 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name migratepage at C: (*migratepage)(struct address_space___0 * , struct page * , struct page * ) [3521] [2023-11-25 00:05:34,004 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] [2023-11-25 00:05:34,013 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] [2023-11-25 00:05:34,013 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] [2023-11-25 00:05:34,014 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] [2023-11-25 00:05:34,015 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] [2023-11-25 00:05:34,016 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] [2023-11-25 00:05:34,016 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] [2023-11-25 00:05:34,017 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name carrier_raised at C: (*carrier_raised)(struct tty_port___0 *port ) [3934] [2023-11-25 00:05:34,018 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name dtr_rts at C: (*dtr_rts)(struct tty_port___0 *port , int raise ) [3935] [2023-11-25 00:05:34,018 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name shutdown at C: (*shutdown)(struct tty_port___0 *port ) [3936] [2023-11-25 00:05:34,018 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name drop at C: (*drop)(struct tty_port___0 *port ) [3937] [2023-11-25 00:05:34,019 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] [2023-11-25 00:05:34,019 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name destruct at C: (*destruct)(struct tty_port___0 *port ) [3939] [2023-11-25 00:05:34,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:34,204 WARN L675 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:05:34,214 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:05:34,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34 WrapperNode [2023-11-25 00:05:34,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:34,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:34,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:05:34,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:05:34,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,457 INFO L138 Inliner]: procedures = 98, calls = 1035, calls flagged for inlining = 46, calls inlined = 44, statements flattened = 1999 [2023-11-25 00:05:34,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:34,458 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:05:34,458 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:05:34,459 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:05:34,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:05:34,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:05:34,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:05:34,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:05:34,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (1/1) ... [2023-11-25 00:05:34,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:34,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:34,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:05:34,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:05:34,819 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2023-11-25 00:05:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2023-11-25 00:05:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:05:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:05:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:05:34,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-25 00:05:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-25 00:05:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-25 00:05:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-25 00:05:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:05:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:05:34,821 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-25 00:05:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-25 00:05:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2023-11-25 00:05:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2023-11-25 00:05:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-25 00:05:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-25 00:05:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-25 00:05:34,822 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-25 00:05:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-25 00:05:34,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-25 00:05:34,824 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2023-11-25 00:05:34,824 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2023-11-25 00:05:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-25 00:05:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-25 00:05:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:05:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-25 00:05:34,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-25 00:05:34,825 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-11-25 00:05:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:05:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:05:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:05:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:05:34,826 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-11-25 00:05:34,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-11-25 00:05:34,827 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2023-11-25 00:05:34,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2023-11-25 00:05:34,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:05:34,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:05:34,827 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-11-25 00:05:34,827 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-11-25 00:05:34,827 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:05:34,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:05:34,828 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-25 00:05:34,828 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-25 00:05:34,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-25 00:05:34,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-25 00:05:34,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2023-11-25 00:05:34,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2023-11-25 00:05:34,829 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2023-11-25 00:05:34,830 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2023-11-25 00:05:34,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:05:34,830 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2023-11-25 00:05:34,830 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2023-11-25 00:05:34,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-25 00:05:34,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-25 00:05:34,831 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2023-11-25 00:05:34,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2023-11-25 00:05:34,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:05:34,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:05:35,191 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:05:35,195 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:05:35,367 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:05:35,446 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-25 00:05:37,508 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:05:38,327 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:05:38,327 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:05:38,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:38 BoogieIcfgContainer [2023-11-25 00:05:38,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:05:38,332 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:05:38,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:05:38,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:05:38,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:05:32" (1/3) ... [2023-11-25 00:05:38,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a07816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:05:38, skipping insertion in model container [2023-11-25 00:05:38,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:34" (2/3) ... [2023-11-25 00:05:38,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a07816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:05:38, skipping insertion in model container [2023-11-25 00:05:38,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:38" (3/3) ... [2023-11-25 00:05:38,340 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4ed3cba-1-100_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2023-11-25 00:05:38,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:05:38,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-25 00:05:38,434 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:05:38,442 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=FINITE_AUTOMATA, 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;@1c2ea5bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:05:38,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-25 00:05:38,450 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) [2023-11-25 00:05:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-25 00:05:38,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:38,466 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] [2023-11-25 00:05:38,467 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)] === [2023-11-25 00:05:38,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:38,473 INFO L85 PathProgramCache]: Analyzing trace with hash -563043007, now seen corresponding path program 1 times [2023-11-25 00:05:38,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:38,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097019871] [2023-11-25 00:05:38,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:39,398 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-25 00:05:39,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:39,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097019871] [2023-11-25 00:05:39,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097019871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:39,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:39,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:39,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104182056] [2023-11-25 00:05:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:39,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:39,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:39,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:39,463 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 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:05:40,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:40,015 INFO L93 Difference]: Finished difference Result 893 states and 1297 transitions. [2023-11-25 00:05:40,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:40,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 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 [2023-11-25 00:05:40,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:40,046 INFO L225 Difference]: With dead ends: 893 [2023-11-25 00:05:40,047 INFO L226 Difference]: Without dead ends: 550 [2023-11-25 00:05:40,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:40,072 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 395 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:40,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 882 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:05:40,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-25 00:05:40,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 546. [2023-11-25 00:05:40,223 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) [2023-11-25 00:05:40,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 795 transitions. [2023-11-25 00:05:40,235 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 795 transitions. Word has length 46 [2023-11-25 00:05:40,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:40,236 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 795 transitions. [2023-11-25 00:05:40,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:05:40,236 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 795 transitions. [2023-11-25 00:05:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-25 00:05:40,246 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:40,247 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] [2023-11-25 00:05:40,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:05:40,247 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)] === [2023-11-25 00:05:40,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:40,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1011913816, now seen corresponding path program 1 times [2023-11-25 00:05:40,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:40,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564348335] [2023-11-25 00:05:40,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:40,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:40,654 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-25 00:05:40,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:40,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564348335] [2023-11-25 00:05:40,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564348335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:40,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:40,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:40,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906032789] [2023-11-25 00:05:40,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:40,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:40,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:40,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:40,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:40,659 INFO L87 Difference]: Start difference. First operand 546 states and 795 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:05:41,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:41,034 INFO L93 Difference]: Finished difference Result 1170 states and 1696 transitions. [2023-11-25 00:05:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:41,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (6), 1 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 [2023-11-25 00:05:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:41,043 INFO L225 Difference]: With dead ends: 1170 [2023-11-25 00:05:41,043 INFO L226 Difference]: Without dead ends: 642 [2023-11-25 00:05:41,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:41,048 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 111 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:41,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 680 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:05:41,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-11-25 00:05:41,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 636. [2023-11-25 00:05:41,084 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) [2023-11-25 00:05:41,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 923 transitions. [2023-11-25 00:05:41,089 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 923 transitions. Word has length 50 [2023-11-25 00:05:41,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:41,089 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 923 transitions. [2023-11-25 00:05:41,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-25 00:05:41,090 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 923 transitions. [2023-11-25 00:05:41,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-25 00:05:41,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:41,093 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] [2023-11-25 00:05:41,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:05:41,093 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)] === [2023-11-25 00:05:41,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:41,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1837748108, now seen corresponding path program 1 times [2023-11-25 00:05:41,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:41,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868059696] [2023-11-25 00:05:41,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:41,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:41,631 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-25 00:05:41,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:41,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868059696] [2023-11-25 00:05:41,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868059696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:41,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:41,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:05:41,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687210970] [2023-11-25 00:05:41,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:41,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:41,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:41,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:41,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:05:41,635 INFO L87 Difference]: Start difference. First operand 636 states and 923 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-25 00:05:42,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:42,147 INFO L93 Difference]: Finished difference Result 1722 states and 2582 transitions. [2023-11-25 00:05:42,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:42,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (7), 1 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 [2023-11-25 00:05:42,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:42,157 INFO L225 Difference]: With dead ends: 1722 [2023-11-25 00:05:42,157 INFO L226 Difference]: Without dead ends: 1118 [2023-11-25 00:05:42,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:42,161 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 743 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:42,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1069 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-25 00:05:42,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2023-11-25 00:05:42,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 624. [2023-11-25 00:05:42,286 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) [2023-11-25 00:05:42,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 906 transitions. [2023-11-25 00:05:42,293 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 906 transitions. Word has length 64 [2023-11-25 00:05:42,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:42,296 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 906 transitions. [2023-11-25 00:05:42,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-25 00:05:42,296 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 906 transitions. [2023-11-25 00:05:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-25 00:05:42,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:42,300 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] [2023-11-25 00:05:42,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:05:42,300 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)] === [2023-11-25 00:05:42,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:42,311 INFO L85 PathProgramCache]: Analyzing trace with hash -596934397, now seen corresponding path program 1 times [2023-11-25 00:05:42,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:42,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556038529] [2023-11-25 00:05:42,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:42,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-25 00:05:42,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:42,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556038529] [2023-11-25 00:05:42,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556038529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:42,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:42,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-25 00:05:42,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264215836] [2023-11-25 00:05:42,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:42,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:42,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:42,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:42,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-25 00:05:42,848 INFO L87 Difference]: Start difference. First operand 624 states and 906 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-25 00:05:43,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:43,185 INFO L93 Difference]: Finished difference Result 1205 states and 1758 transitions. [2023-11-25 00:05:43,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:43,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 1 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 [2023-11-25 00:05:43,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:43,196 INFO L225 Difference]: With dead ends: 1205 [2023-11-25 00:05:43,196 INFO L226 Difference]: Without dead ends: 609 [2023-11-25 00:05:43,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:43,201 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 1 mSDsluCounter, 773 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:43,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1162 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:05:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-11-25 00:05:43,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 607. [2023-11-25 00:05:43,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 439 states have (on average 1.469248291571754) internal successors, (645), 453 states have internal predecessors, (645), 118 states have call successors, (118), 40 states have call predecessors, (118), 40 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2023-11-25 00:05:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 881 transitions. [2023-11-25 00:05:43,264 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 881 transitions. Word has length 79 [2023-11-25 00:05:43,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:43,266 INFO L495 AbstractCegarLoop]: Abstraction has 607 states and 881 transitions. [2023-11-25 00:05:43,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-25 00:05:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 881 transitions. [2023-11-25 00:05:43,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-25 00:05:43,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:43,270 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] [2023-11-25 00:05:43,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:05:43,270 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)] === [2023-11-25 00:05:43,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:43,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1540285859, now seen corresponding path program 1 times [2023-11-25 00:05:43,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:43,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671576161] [2023-11-25 00:05:43,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:43,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:05:43,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:43,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671576161] [2023-11-25 00:05:43,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671576161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:43,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:43,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:05:43,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276703507] [2023-11-25 00:05:43,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:43,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:43,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:43,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:43,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:43,780 INFO L87 Difference]: Start difference. First operand 607 states and 881 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-25 00:05:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:44,148 INFO L93 Difference]: Finished difference Result 1182 states and 1723 transitions. [2023-11-25 00:05:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 1 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 [2023-11-25 00:05:44,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:44,163 INFO L225 Difference]: With dead ends: 1182 [2023-11-25 00:05:44,163 INFO L226 Difference]: Without dead ends: 1172 [2023-11-25 00:05:44,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:44,165 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 389 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:44,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 724 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:05:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2023-11-25 00:05:44,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1172. [2023-11-25 00:05:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 858 states have (on average 1.4533799533799534) internal successors, (1247), 877 states have internal predecessors, (1247), 228 states have call successors, (228), 76 states have call predecessors, (228), 76 states have return successors, (228), 226 states have call predecessors, (228), 228 states have call successors, (228) [2023-11-25 00:05:44,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1703 transitions. [2023-11-25 00:05:44,284 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1703 transitions. Word has length 82 [2023-11-25 00:05:44,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:44,285 INFO L495 AbstractCegarLoop]: Abstraction has 1172 states and 1703 transitions. [2023-11-25 00:05:44,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-25 00:05:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1703 transitions. [2023-11-25 00:05:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-25 00:05:44,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:44,289 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] [2023-11-25 00:05:44,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-25 00:05:44,289 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)] === [2023-11-25 00:05:44,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:44,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1333700546, now seen corresponding path program 1 times [2023-11-25 00:05:44,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:44,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911847157] [2023-11-25 00:05:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:44,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:44,709 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2023-11-25 00:05:44,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:44,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911847157] [2023-11-25 00:05:44,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911847157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:44,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:44,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:44,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318009836] [2023-11-25 00:05:44,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:44,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:44,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:44,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:44,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:44,716 INFO L87 Difference]: Start difference. First operand 1172 states and 1703 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-25 00:05:45,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:45,031 INFO L93 Difference]: Finished difference Result 2334 states and 3412 transitions. [2023-11-25 00:05:45,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:45,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 1 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 [2023-11-25 00:05:45,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:45,041 INFO L225 Difference]: With dead ends: 2334 [2023-11-25 00:05:45,041 INFO L226 Difference]: Without dead ends: 1194 [2023-11-25 00:05:45,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:45,046 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 369 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:45,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 774 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:05:45,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2023-11-25 00:05:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1187. [2023-11-25 00:05:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 879 states have (on average 1.4573378839590443) internal successors, (1281), 898 states have internal predecessors, (1281), 224 states have call successors, (224), 74 states have call predecessors, (224), 74 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224) [2023-11-25 00:05:45,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1729 transitions. [2023-11-25 00:05:45,129 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1729 transitions. Word has length 93 [2023-11-25 00:05:45,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:45,129 INFO L495 AbstractCegarLoop]: Abstraction has 1187 states and 1729 transitions. [2023-11-25 00:05:45,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-25 00:05:45,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1729 transitions. [2023-11-25 00:05:45,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-25 00:05:45,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:45,137 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] [2023-11-25 00:05:45,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-25 00:05:45,137 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)] === [2023-11-25 00:05:45,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:45,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1784608538, now seen corresponding path program 1 times [2023-11-25 00:05:45,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:45,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018970296] [2023-11-25 00:05:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:45,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:05:45,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:45,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018970296] [2023-11-25 00:05:45,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018970296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:45,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:45,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:45,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021355923] [2023-11-25 00:05:45,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:45,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:45,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:45,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:45,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:45,503 INFO L87 Difference]: Start difference. First operand 1187 states and 1729 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-25 00:05:45,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:45,862 INFO L93 Difference]: Finished difference Result 2298 states and 3365 transitions. [2023-11-25 00:05:45,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:45,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (10), 1 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 [2023-11-25 00:05:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:45,873 INFO L225 Difference]: With dead ends: 2298 [2023-11-25 00:05:45,873 INFO L226 Difference]: Without dead ends: 1460 [2023-11-25 00:05:45,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:45,876 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 351 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:45,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1071 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:05:45,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2023-11-25 00:05:45,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1454. [2023-11-25 00:05:45,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 1080 states have (on average 1.461111111111111) internal successors, (1578), 1101 states have internal predecessors, (1578), 273 states have call successors, (273), 91 states have call predecessors, (273), 91 states have return successors, (273), 271 states have call predecessors, (273), 273 states have call successors, (273) [2023-11-25 00:05:46,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 2124 transitions. [2023-11-25 00:05:46,000 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 2124 transitions. Word has length 92 [2023-11-25 00:05:46,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:46,001 INFO L495 AbstractCegarLoop]: Abstraction has 1454 states and 2124 transitions. [2023-11-25 00:05:46,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-25 00:05:46,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 2124 transitions. [2023-11-25 00:05:46,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-25 00:05:46,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:46,005 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 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, 1, 1, 1, 1] [2023-11-25 00:05:46,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-25 00:05:46,005 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-25 00:05:46,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:46,006 INFO L85 PathProgramCache]: Analyzing trace with hash -800896831, now seen corresponding path program 1 times [2023-11-25 00:05:46,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:46,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453930299] [2023-11-25 00:05:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:46,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:46,354 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-25 00:05:46,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:46,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453930299] [2023-11-25 00:05:46,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453930299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:46,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:46,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:05:46,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038616082] [2023-11-25 00:05:46,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:46,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:46,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:46,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:46,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:46,357 INFO L87 Difference]: Start difference. First operand 1454 states and 2124 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-25 00:05:46,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:46,824 INFO L93 Difference]: Finished difference Result 3090 states and 4589 transitions. [2023-11-25 00:05:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:46,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 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 96 [2023-11-25 00:05:46,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:46,836 INFO L225 Difference]: With dead ends: 3090 [2023-11-25 00:05:46,836 INFO L226 Difference]: Without dead ends: 1683 [2023-11-25 00:05:46,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:46,843 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 275 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:46,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 576 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:05:46,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2023-11-25 00:05:46,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1649. [2023-11-25 00:05:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1293 states have (on average 1.4292343387470998) internal successors, (1848), 1314 states have internal predecessors, (1848), 251 states have call successors, (251), 95 states have call predecessors, (251), 95 states have return successors, (251), 249 states have call predecessors, (251), 251 states have call successors, (251) [2023-11-25 00:05:46,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2350 transitions. [2023-11-25 00:05:46,956 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2350 transitions. Word has length 96 [2023-11-25 00:05:46,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:46,958 INFO L495 AbstractCegarLoop]: Abstraction has 1649 states and 2350 transitions. [2023-11-25 00:05:46,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-25 00:05:46,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2350 transitions. [2023-11-25 00:05:46,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-25 00:05:46,960 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:46,960 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] [2023-11-25 00:05:46,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-25 00:05:46,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-25 00:05:46,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:46,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1317959021, now seen corresponding path program 1 times [2023-11-25 00:05:46,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:46,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216173336] [2023-11-25 00:05:46,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:46,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:05:47,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:47,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216173336] [2023-11-25 00:05:47,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216173336] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:05:47,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154550439] [2023-11-25 00:05:47,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:47,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:47,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:47,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:05:47,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-25 00:05:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:48,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:05:48,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:05:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-25 00:05:48,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-25 00:05:48,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154550439] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:48,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-25 00:05:48,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-25 00:05:48,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638480338] [2023-11-25 00:05:48,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:48,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-25 00:05:48,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:48,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-25 00:05:48,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:48,608 INFO L87 Difference]: Start difference. First operand 1649 states and 2350 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) [2023-11-25 00:05:49,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:49,771 INFO L93 Difference]: Finished difference Result 3939 states and 5629 transitions. [2023-11-25 00:05:49,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-25 00:05:49,772 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 [2023-11-25 00:05:49,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:49,805 INFO L225 Difference]: With dead ends: 3939 [2023-11-25 00:05:49,805 INFO L226 Difference]: Without dead ends: 3934 [2023-11-25 00:05:49,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:05:49,811 INFO L413 NwaCegarLoop]: 617 mSDtfsCounter, 840 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:49,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1204 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-25 00:05:49,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3934 states. [2023-11-25 00:05:50,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3934 to 3519. [2023-11-25 00:05:50,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 2771 states have (on average 1.4280043305665824) internal successors, (3957), 2805 states have internal predecessors, (3957), 537 states have call successors, (537), 201 states have call predecessors, (537), 201 states have return successors, (537), 534 states have call predecessors, (537), 537 states have call successors, (537) [2023-11-25 00:05:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 5031 transitions. [2023-11-25 00:05:50,089 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 5031 transitions. Word has length 97 [2023-11-25 00:05:50,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:50,090 INFO L495 AbstractCegarLoop]: Abstraction has 3519 states and 5031 transitions. [2023-11-25 00:05:50,090 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) [2023-11-25 00:05:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 5031 transitions. [2023-11-25 00:05:50,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-25 00:05:50,093 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:50,094 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] [2023-11-25 00:05:50,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-25 00:05:50,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:50,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2023-11-25 00:05:50,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:50,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2092944442, now seen corresponding path program 1 times [2023-11-25 00:05:50,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:50,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755211025] [2023-11-25 00:05:50,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:50,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:50,817 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:05:50,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:50,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755211025] [2023-11-25 00:05:50,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755211025] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-25 00:05:50,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181940131] [2023-11-25 00:05:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:50,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-25 00:05:50,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:50,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-25 00:05:50,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_478c4dbf-618d-446e-87c2-d09a381b9106/bin/utaipan-verify-SwPr7d2a91/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-25 00:05:51,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:51,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-25 00:05:51,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-25 00:05:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-25 00:05:51,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-25 00:05:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-25 00:05:52,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181940131] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-25 00:05:52,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [854056909] [2023-11-25 00:05:52,046 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-11-25 00:05:52,047 INFO L166 IcfgInterpreter]: Building call graph [2023-11-25 00:05:52,051 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-25 00:05:52,059 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-25 00:05:52,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs