./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:44:26,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:44:26,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:44:26,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:44:26,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:44:26,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:44:26,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:44:26,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:44:26,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:44:26,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:44:26,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:44:26,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:44:26,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:44:26,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:44:26,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:44:26,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:44:26,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:44:26,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:44:26,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:44:26,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:44:26,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:44:26,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:44:26,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:44:26,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:44:26,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:44:26,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:44:26,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:44:26,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:44:26,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:44:26,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:44:26,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:44:26,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:44:26,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:44:26,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:44:26,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:44:26,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:44:26,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:44:26,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:44:26,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:44:26,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:44:26,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:44:26,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 20:44:26,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:44:26,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:44:26,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:44:26,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:44:26,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:44:26,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:44:26,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:44:26,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:44:26,407 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:44:26,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:44:26,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:44:26,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:44:26,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:44:26,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:44:26,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:44:26,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:44:26,408 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:44:26,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:44:26,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:44:26,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:44:26,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:44:26,410 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:44:26,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:44:26,410 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:44:26,410 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1848e360a16ec6531e7d7aea690ab68ac7295c6b0bdec191a41fa9ee0518b66d [2022-12-13 20:44:26,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:44:26,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:44:26,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:44:26,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:44:26,600 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:44:26,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-12-13 20:44:29,192 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:44:29,517 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:44:29,517 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-12-13 20:44:29,547 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/data/d66b882da/501b86cf86e749eab4021275344b9a44/FLAGb0e4b90df [2022-12-13 20:44:29,561 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/data/d66b882da/501b86cf86e749eab4021275344b9a44 [2022-12-13 20:44:29,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:44:29,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:44:29,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:44:29,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:44:29,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:44:29,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:44:29" (1/1) ... [2022-12-13 20:44:29,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3149ba6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:29, skipping insertion in model container [2022-12-13 20:44:29,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:44:29" (1/1) ... [2022-12-13 20:44:29,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:44:29,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:44:30,106 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 20:44:30,127 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 20:44:30,144 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-13 20:44:30,260 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:30,297 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-12-13 20:44:30,339 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-13 20:44:30,344 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 20:44:30,344 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-13 20:44:30,380 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-13 20:44:30,383 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-13 20:44:30,433 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,433 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,434 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,437 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,445 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,446 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 20:44:30,447 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,448 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,449 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,449 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,450 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 20:44:30,450 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,451 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,451 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,451 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 20:44:30,451 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,452 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,452 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,455 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,455 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,459 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,476 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,478 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts_init [2022-12-13 20:44:30,478 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts_init [2022-12-13 20:44:30,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,486 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 20:44:30,492 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 20:44:30,493 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 20:44:30,494 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,499 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,506 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,507 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,519 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,524 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,529 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,529 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 20:44:30,530 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,535 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,536 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,540 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,545 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,546 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 20:44:30,546 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 20:44:30,547 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,550 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 20:44:30,551 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 20:44:30,551 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 20:44:30,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,556 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 20:44:30,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,557 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 20:44:30,557 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,558 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,562 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,562 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,563 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,563 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,563 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,564 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,564 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,565 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,565 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,566 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,566 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,567 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,575 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,579 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,580 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,580 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,588 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,588 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 20:44:30,588 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,592 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,596 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,612 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,613 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,619 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 20:44:30,620 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-13 20:44:30,625 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-13 20:44:30,627 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-13 20:44:30,627 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-13 20:44:30,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,632 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,638 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 20:44:30,639 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 20:44:30,640 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-12-13 20:44:30,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,648 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-13 20:44:30,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,650 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,650 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,651 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 20:44:30,652 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,652 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,653 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,656 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,656 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,658 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 20:44:30,658 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 20:44:30,659 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,660 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,664 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,672 WARN L623 FunctionHandler]: Unknown extern function dvb_register_adapter [2022-12-13 20:44:30,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,674 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_init [2022-12-13 20:44:30,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,675 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:30,675 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_init [2022-12-13 20:44:30,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,676 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 20:44:30,676 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:30,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,677 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 20:44:30,678 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 20:44:30,678 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:30,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,679 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 20:44:30,679 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 20:44:30,680 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:30,680 WARN L623 FunctionHandler]: Unknown extern function dvb_net_init [2022-12-13 20:44:30,684 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,685 WARN L623 FunctionHandler]: Unknown extern function dvb_net_release [2022-12-13 20:44:30,686 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 20:44:30,686 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 20:44:30,686 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_frontend [2022-12-13 20:44:30,688 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:30,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,693 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 20:44:30,693 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-13 20:44:30,694 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-13 20:44:30,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,699 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 20:44:30,703 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-13 20:44:30,704 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 20:44:30,704 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,708 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 20:44:30,713 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 20:44:30,713 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,723 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,724 WARN L623 FunctionHandler]: Unknown extern function ttusbdecfe_dvbs_attach [2022-12-13 20:44:30,725 WARN L623 FunctionHandler]: Unknown extern function ttusbdecfe_dvbt_attach [2022-12-13 20:44:30,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,726 WARN L623 FunctionHandler]: Unknown extern function dvb_register_frontend [2022-12-13 20:44:30,726 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,732 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,733 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,754 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 20:44:30,758 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 20:44:30,759 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 20:44:30,765 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:30,770 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:30,796 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:30,796 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:30,796 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:30,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:44:30,816 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:44:30,892 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 20:44:30,892 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 20:44:30,893 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-13 20:44:30,895 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:30,896 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i[196736,196749] [2022-12-13 20:44:30,901 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-13 20:44:30,902 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 20:44:30,902 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-13 20:44:30,904 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-13 20:44:30,904 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-13 20:44:30,906 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,906 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,906 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,907 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,909 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,920 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 20:44:30,921 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,922 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,923 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 20:44:30,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,924 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,924 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,924 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 20:44:30,924 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,924 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,925 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,927 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,927 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,933 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts_init [2022-12-13 20:44:30,933 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts_init [2022-12-13 20:44:30,934 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,934 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,936 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 20:44:30,939 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 20:44:30,939 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 20:44:30,940 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,941 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,944 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,947 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,950 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,951 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,951 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 20:44:30,951 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,953 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,953 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,954 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,956 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 20:44:30,956 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 20:44:30,957 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,957 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 20:44:30,958 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 20:44:30,958 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 20:44:30,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,959 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 20:44:30,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,960 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 20:44:30,960 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,960 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 20:44:30,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,963 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,963 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,963 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,965 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,965 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,967 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,969 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,970 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,973 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 20:44:30,973 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 20:44:30,973 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,977 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 20:44:30,977 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-13 20:44:30,978 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-13 20:44:30,979 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-13 20:44:30,979 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-13 20:44:30,979 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,981 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 20:44:30,981 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 20:44:30,982 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-12-13 20:44:30,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,985 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-13 20:44:30,985 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,986 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,986 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,986 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 20:44:30,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,987 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,988 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,989 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,989 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,990 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 20:44:30,991 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 20:44:30,991 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 20:44:30,991 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:30,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,994 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,994 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,995 WARN L623 FunctionHandler]: Unknown extern function dvb_register_adapter [2022-12-13 20:44:30,995 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,996 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_init [2022-12-13 20:44:30,996 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,996 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:30,996 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_init [2022-12-13 20:44:30,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,997 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 20:44:30,997 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:30,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:30,998 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 20:44:30,998 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 20:44:30,998 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:30,999 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,000 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 20:44:31,000 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 20:44:31,000 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:31,000 WARN L623 FunctionHandler]: Unknown extern function dvb_net_init [2022-12-13 20:44:31,001 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,001 WARN L623 FunctionHandler]: Unknown extern function dvb_net_release [2022-12-13 20:44:31,002 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 20:44:31,002 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 20:44:31,002 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_frontend [2022-12-13 20:44:31,005 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 20:44:31,005 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,006 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 20:44:31,006 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-13 20:44:31,006 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-13 20:44:31,007 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,007 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 20:44:31,008 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-13 20:44:31,008 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 20:44:31,008 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:31,009 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 20:44:31,009 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 20:44:31,010 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:31,011 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,011 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,012 WARN L623 FunctionHandler]: Unknown extern function ttusbdecfe_dvbs_attach [2022-12-13 20:44:31,012 WARN L623 FunctionHandler]: Unknown extern function ttusbdecfe_dvbt_attach [2022-12-13 20:44:31,013 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,013 WARN L623 FunctionHandler]: Unknown extern function dvb_register_frontend [2022-12-13 20:44:31,013 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 20:44:31,017 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 20:44:31,020 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 20:44:31,024 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 20:44:31,025 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 20:44:31,025 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:31,027 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:31,032 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:31,032 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:31,032 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 20:44:31,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:44:31,059 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:44:31,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31 WrapperNode [2022-12-13 20:44:31,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:44:31,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:44:31,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:44:31,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:44:31,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,170 INFO L138 Inliner]: procedures = 201, calls = 1518, calls flagged for inlining = 91, calls inlined = 86, statements flattened = 2610 [2022-12-13 20:44:31,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:44:31,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:44:31,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:44:31,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:44:31,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:44:31,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:44:31,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:44:31,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:44:31,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (1/1) ... [2022-12-13 20:44:31,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:44:31,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:44:31,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:44:31,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-13 20:44:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-12-13 20:44:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_12 [2022-12-13 20:44:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_12 [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 20:44:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-12-13 20:44:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-12-13 20:44:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-12-13 20:44:31,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-12-13 20:44:31,356 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-12-13 20:44:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-12-13 20:44:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-13 20:44:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-13 20:44:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-12-13 20:44:31,359 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-12-13 20:44:31,359 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-12-13 20:44:31,360 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:44:31,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-12-13 20:44:31,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-12-13 20:44:31,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:44:31,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:44:31,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:44:31,778 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:44:31,780 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:44:31,991 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 20:44:36,323 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-12-13 20:44:36,574 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:44:36,584 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:44:36,584 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:44:36,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:44:36 BoogieIcfgContainer [2022-12-13 20:44:36,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:44:36,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:44:36,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:44:36,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:44:36,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:44:29" (1/3) ... [2022-12-13 20:44:36,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52736e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:44:36, skipping insertion in model container [2022-12-13 20:44:36,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:44:31" (2/3) ... [2022-12-13 20:44:36,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52736e62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:44:36, skipping insertion in model container [2022-12-13 20:44:36,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:44:36" (3/3) ... [2022-12-13 20:44:36,593 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-entry_point.cil.out.i [2022-12-13 20:44:36,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:44:36,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:44:36,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:44:36,660 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7fbef1cf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:44:36,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:44:36,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 1054 states, 755 states have (on average 1.3258278145695364) internal successors, (1001), 782 states have internal predecessors, (1001), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) [2022-12-13 20:44:36,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-13 20:44:36,673 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:44:36,673 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:44:36,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:44:36,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:44:36,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1424196131, now seen corresponding path program 1 times [2022-12-13 20:44:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:44:36,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357950429] [2022-12-13 20:44:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:44:36,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:44:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:37,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:44:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:37,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:44:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:37,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:44:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:37,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:44:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:37,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:44:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:37,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:44:37,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:37,197 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 20:44:37,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:44:37,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357950429] [2022-12-13 20:44:37,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357950429] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:44:37,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:44:37,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:44:37,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413500001] [2022-12-13 20:44:37,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:44:37,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:44:37,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:44:37,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:44:37,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:44:37,228 INFO L87 Difference]: Start difference. First operand has 1054 states, 755 states have (on average 1.3258278145695364) internal successors, (1001), 782 states have internal predecessors, (1001), 231 states have call successors, (231), 68 states have call predecessors, (231), 66 states have return successors, (225), 217 states have call predecessors, (225), 225 states have call successors, (225) Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-13 20:44:40,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:44:45,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:44:45,275 INFO L93 Difference]: Finished difference Result 3506 states and 5134 transitions. [2022-12-13 20:44:45,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:44:45,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-12-13 20:44:45,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:44:45,306 INFO L225 Difference]: With dead ends: 3506 [2022-12-13 20:44:45,307 INFO L226 Difference]: Without dead ends: 2431 [2022-12-13 20:44:45,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:44:45,320 INFO L413 NwaCegarLoop]: 1439 mSDtfsCounter, 2967 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 1384 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3131 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 3458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1384 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:44:45,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3131 Valid, 3718 Invalid, 3458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1384 Valid, 2073 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-12-13 20:44:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2022-12-13 20:44:45,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2000. [2022-12-13 20:44:45,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2000 states, 1446 states have (on average 1.3160442600276625) internal successors, (1903), 1480 states have internal predecessors, (1903), 424 states have call successors, (424), 130 states have call predecessors, (424), 129 states have return successors, (419), 403 states have call predecessors, (419), 419 states have call successors, (419) [2022-12-13 20:44:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2746 transitions. [2022-12-13 20:44:45,501 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2746 transitions. Word has length 52 [2022-12-13 20:44:45,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:44:45,502 INFO L495 AbstractCegarLoop]: Abstraction has 2000 states and 2746 transitions. [2022-12-13 20:44:45,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-13 20:44:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2746 transitions. [2022-12-13 20:44:45,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 20:44:45,505 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:44:45,505 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:44:45,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:44:45,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:44:45,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:44:45,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1843236242, now seen corresponding path program 1 times [2022-12-13 20:44:45,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:44:45,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467595613] [2022-12-13 20:44:45,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:44:45,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:44:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:45,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:44:45,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:45,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:44:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:45,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:44:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:44:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:45,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:44:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:45,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:44:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:45,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:44:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:45,762 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 20:44:45,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:44:45,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467595613] [2022-12-13 20:44:45,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467595613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:44:45,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:44:45,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:44:45,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192983105] [2022-12-13 20:44:45,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:44:45,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:44:45,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:44:45,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:44:45,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:44:45,766 INFO L87 Difference]: Start difference. First operand 2000 states and 2746 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:44:48,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:44:53,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:44:53,485 INFO L93 Difference]: Finished difference Result 3590 states and 5127 transitions. [2022-12-13 20:44:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:44:53,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2022-12-13 20:44:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:44:53,498 INFO L225 Difference]: With dead ends: 3590 [2022-12-13 20:44:53,498 INFO L226 Difference]: Without dead ends: 3577 [2022-12-13 20:44:53,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:44:53,500 INFO L413 NwaCegarLoop]: 1356 mSDtfsCounter, 3014 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 1382 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 3359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1382 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:44:53,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3181 Valid, 3473 Invalid, 3359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1382 Valid, 1976 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-13 20:44:53,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3577 states. [2022-12-13 20:44:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3577 to 2920. [2022-12-13 20:44:53,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2108 states have (on average 1.3135673624288424) internal successors, (2769), 2157 states have internal predecessors, (2769), 619 states have call successors, (619), 193 states have call predecessors, (619), 192 states have return successors, (614), 590 states have call predecessors, (614), 614 states have call successors, (614) [2022-12-13 20:44:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4002 transitions. [2022-12-13 20:44:53,608 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4002 transitions. Word has length 62 [2022-12-13 20:44:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:44:53,609 INFO L495 AbstractCegarLoop]: Abstraction has 2920 states and 4002 transitions. [2022-12-13 20:44:53,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:44:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4002 transitions. [2022-12-13 20:44:53,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-13 20:44:53,610 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:44:53,610 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:44:53,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:44:53,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:44:53,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:44:53,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1785977940, now seen corresponding path program 1 times [2022-12-13 20:44:53,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:44:53,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322603557] [2022-12-13 20:44:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:44:53,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:44:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:53,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:44:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:44:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:44:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:53,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:44:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:53,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:44:53,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:54,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:44:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:44:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:44:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 20:44:54,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:44:54,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322603557] [2022-12-13 20:44:54,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322603557] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:44:54,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:44:54,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:44:54,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378795050] [2022-12-13 20:44:54,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:44:54,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:44:54,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:44:54,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:44:54,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:44:54,036 INFO L87 Difference]: Start difference. First operand 2920 states and 4002 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:44:56,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:45:02,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:45:02,145 INFO L93 Difference]: Finished difference Result 9963 states and 14584 transitions. [2022-12-13 20:45:02,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:45:02,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2022-12-13 20:45:02,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:45:02,174 INFO L225 Difference]: With dead ends: 9963 [2022-12-13 20:45:02,174 INFO L226 Difference]: Without dead ends: 7065 [2022-12-13 20:45:02,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:45:02,192 INFO L413 NwaCegarLoop]: 1499 mSDtfsCounter, 3000 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 1342 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 3892 SdHoareTripleChecker+Invalid, 3429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:45:02,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3140 Valid, 3892 Invalid, 3429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1342 Valid, 2086 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-12-13 20:45:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7065 states. [2022-12-13 20:45:02,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7065 to 6199. [2022-12-13 20:45:02,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6199 states, 4456 states have (on average 1.302737881508079) internal successors, (5805), 4577 states have internal predecessors, (5805), 1263 states have call successors, (1263), 383 states have call predecessors, (1263), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-12-13 20:45:02,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6199 states to 6199 states and 8734 transitions. [2022-12-13 20:45:02,482 INFO L78 Accepts]: Start accepts. Automaton has 6199 states and 8734 transitions. Word has length 62 [2022-12-13 20:45:02,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:45:02,482 INFO L495 AbstractCegarLoop]: Abstraction has 6199 states and 8734 transitions. [2022-12-13 20:45:02,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 6199 states and 8734 transitions. [2022-12-13 20:45:02,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-12-13 20:45:02,484 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:45:02,484 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:45:02,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:45:02,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:45:02,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:45:02,485 INFO L85 PathProgramCache]: Analyzing trace with hash 468776128, now seen corresponding path program 1 times [2022-12-13 20:45:02,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:45:02,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332376761] [2022-12-13 20:45:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:45:02,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:45:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:02,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:45:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:02,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:45:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:02,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:45:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:45:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:45:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:02,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:45:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:45:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:02,916 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 20:45:02,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:45:02,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332376761] [2022-12-13 20:45:02,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332376761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:45:02,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:45:02,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:45:02,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991520301] [2022-12-13 20:45:02,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:45:02,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:45:02,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:45:02,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:45:02,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:45:02,918 INFO L87 Difference]: Start difference. First operand 6199 states and 8734 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:05,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:45:10,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:45:10,631 INFO L93 Difference]: Finished difference Result 7054 states and 10320 transitions. [2022-12-13 20:45:10,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:45:10,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 63 [2022-12-13 20:45:10,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:45:10,655 INFO L225 Difference]: With dead ends: 7054 [2022-12-13 20:45:10,655 INFO L226 Difference]: Without dead ends: 7051 [2022-12-13 20:45:10,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:45:10,658 INFO L413 NwaCegarLoop]: 1337 mSDtfsCounter, 2980 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 1372 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 3429 SdHoareTripleChecker+Invalid, 3349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1372 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:45:10,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 3429 Invalid, 3349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1372 Valid, 1976 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-12-13 20:45:10,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7051 states. [2022-12-13 20:45:10,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7051 to 6198. [2022-12-13 20:45:10,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6198 states, 4456 states have (on average 1.3025134649910233) internal successors, (5804), 4576 states have internal predecessors, (5804), 1262 states have call successors, (1262), 383 states have call predecessors, (1262), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-12-13 20:45:10,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6198 states to 6198 states and 8732 transitions. [2022-12-13 20:45:10,941 INFO L78 Accepts]: Start accepts. Automaton has 6198 states and 8732 transitions. Word has length 63 [2022-12-13 20:45:10,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:45:10,941 INFO L495 AbstractCegarLoop]: Abstraction has 6198 states and 8732 transitions. [2022-12-13 20:45:10,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:10,942 INFO L276 IsEmpty]: Start isEmpty. Operand 6198 states and 8732 transitions. [2022-12-13 20:45:10,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 20:45:10,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:45:10,942 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:45:10,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:45:10,943 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:45:10,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:45:10,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1646680367, now seen corresponding path program 1 times [2022-12-13 20:45:10,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:45:10,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341931143] [2022-12-13 20:45:10,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:45:10,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:45:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:45:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:45:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:11,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:45:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:11,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:45:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:11,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:45:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:11,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:45:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:11,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:45:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 20:45:11,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:45:11,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341931143] [2022-12-13 20:45:11,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341931143] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:45:11,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:45:11,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:45:11,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962382760] [2022-12-13 20:45:11,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:45:11,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:45:11,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:45:11,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:45:11,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:45:11,186 INFO L87 Difference]: Start difference. First operand 6198 states and 8732 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:13,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:45:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:45:18,890 INFO L93 Difference]: Finished difference Result 7053 states and 10318 transitions. [2022-12-13 20:45:18,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:45:18,890 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 64 [2022-12-13 20:45:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:45:18,911 INFO L225 Difference]: With dead ends: 7053 [2022-12-13 20:45:18,912 INFO L226 Difference]: Without dead ends: 7050 [2022-12-13 20:45:18,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:45:18,914 INFO L413 NwaCegarLoop]: 1339 mSDtfsCounter, 2960 mSDsluCounter, 2082 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 1361 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3123 SdHoareTripleChecker+Valid, 3421 SdHoareTripleChecker+Invalid, 3333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1361 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:45:18,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3123 Valid, 3421 Invalid, 3333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1361 Valid, 1971 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-12-13 20:45:18,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7050 states. [2022-12-13 20:45:19,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7050 to 6197. [2022-12-13 20:45:19,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6197 states, 4456 states have (on average 1.3022890484739678) internal successors, (5803), 4575 states have internal predecessors, (5803), 1261 states have call successors, (1261), 383 states have call predecessors, (1261), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-12-13 20:45:19,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6197 states to 6197 states and 8730 transitions. [2022-12-13 20:45:19,187 INFO L78 Accepts]: Start accepts. Automaton has 6197 states and 8730 transitions. Word has length 64 [2022-12-13 20:45:19,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:45:19,187 INFO L495 AbstractCegarLoop]: Abstraction has 6197 states and 8730 transitions. [2022-12-13 20:45:19,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:19,187 INFO L276 IsEmpty]: Start isEmpty. Operand 6197 states and 8730 transitions. [2022-12-13 20:45:19,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-13 20:45:19,188 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:45:19,188 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:45:19,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:45:19,188 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:45:19,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:45:19,189 INFO L85 PathProgramCache]: Analyzing trace with hash -492989021, now seen corresponding path program 1 times [2022-12-13 20:45:19,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:45:19,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784022409] [2022-12-13 20:45:19,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:45:19,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:45:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:19,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:45:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:45:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:45:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:19,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:45:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:19,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:45:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:45:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:19,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:45:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 20:45:19,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:45:19,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784022409] [2022-12-13 20:45:19,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784022409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:45:19,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:45:19,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:45:19,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837057886] [2022-12-13 20:45:19,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:45:19,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:45:19,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:45:19,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:45:19,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:45:19,424 INFO L87 Difference]: Start difference. First operand 6197 states and 8730 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:22,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:45:27,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:45:27,508 INFO L93 Difference]: Finished difference Result 7052 states and 10316 transitions. [2022-12-13 20:45:27,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:45:27,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 65 [2022-12-13 20:45:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:45:27,530 INFO L225 Difference]: With dead ends: 7052 [2022-12-13 20:45:27,530 INFO L226 Difference]: Without dead ends: 7049 [2022-12-13 20:45:27,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:45:27,533 INFO L413 NwaCegarLoop]: 1330 mSDtfsCounter, 2994 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 1382 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3153 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1382 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:45:27,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3153 Valid, 3410 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1382 Valid, 1963 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-12-13 20:45:27,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7049 states. [2022-12-13 20:45:27,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7049 to 6196. [2022-12-13 20:45:27,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6196 states, 4456 states have (on average 1.302064631956912) internal successors, (5802), 4574 states have internal predecessors, (5802), 1260 states have call successors, (1260), 383 states have call predecessors, (1260), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-12-13 20:45:27,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6196 states to 6196 states and 8728 transitions. [2022-12-13 20:45:27,834 INFO L78 Accepts]: Start accepts. Automaton has 6196 states and 8728 transitions. Word has length 65 [2022-12-13 20:45:27,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:45:27,834 INFO L495 AbstractCegarLoop]: Abstraction has 6196 states and 8728 transitions. [2022-12-13 20:45:27,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:27,835 INFO L276 IsEmpty]: Start isEmpty. Operand 6196 states and 8728 transitions. [2022-12-13 20:45:27,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-13 20:45:27,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:45:27,835 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:45:27,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:45:27,836 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:45:27,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:45:27,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1896741554, now seen corresponding path program 1 times [2022-12-13 20:45:27,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:45:27,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862184563] [2022-12-13 20:45:27,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:45:27,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:45:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:45:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:27,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:45:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:45:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:27,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:45:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:27,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:45:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:27,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:45:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:28,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:45:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:28,021 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 20:45:28,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:45:28,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862184563] [2022-12-13 20:45:28,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862184563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:45:28,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:45:28,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:45:28,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882459188] [2022-12-13 20:45:28,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:45:28,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:45:28,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:45:28,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:45:28,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:45:28,022 INFO L87 Difference]: Start difference. First operand 6196 states and 8728 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:30,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:45:35,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:45:35,868 INFO L93 Difference]: Finished difference Result 7051 states and 10314 transitions. [2022-12-13 20:45:35,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:45:35,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 66 [2022-12-13 20:45:35,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:45:35,889 INFO L225 Difference]: With dead ends: 7051 [2022-12-13 20:45:35,889 INFO L226 Difference]: Without dead ends: 7039 [2022-12-13 20:45:35,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:45:35,891 INFO L413 NwaCegarLoop]: 1356 mSDtfsCounter, 2943 mSDsluCounter, 2099 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 1346 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 3344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1346 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:45:35,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3099 Valid, 3455 Invalid, 3344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1346 Valid, 1997 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-13 20:45:35,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7039 states. [2022-12-13 20:45:36,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7039 to 6186. [2022-12-13 20:45:36,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6186 states, 4447 states have (on average 1.3020013492241962) internal successors, (5790), 4564 states have internal predecessors, (5790), 1259 states have call successors, (1259), 383 states have call predecessors, (1259), 479 states have return successors, (1666), 1274 states have call predecessors, (1666), 1258 states have call successors, (1666) [2022-12-13 20:45:36,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6186 states to 6186 states and 8715 transitions. [2022-12-13 20:45:36,167 INFO L78 Accepts]: Start accepts. Automaton has 6186 states and 8715 transitions. Word has length 66 [2022-12-13 20:45:36,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:45:36,167 INFO L495 AbstractCegarLoop]: Abstraction has 6186 states and 8715 transitions. [2022-12-13 20:45:36,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 20:45:36,167 INFO L276 IsEmpty]: Start isEmpty. Operand 6186 states and 8715 transitions. [2022-12-13 20:45:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-13 20:45:36,171 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:45:36,171 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:45:36,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:45:36,171 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:45:36,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:45:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash 174372835, now seen corresponding path program 1 times [2022-12-13 20:45:36,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:45:36,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412864659] [2022-12-13 20:45:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:45:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:45:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:45:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:45:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:45:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:45:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:45:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:45:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-12-13 20:45:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:45:36,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:45:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:45:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:45:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:45:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:45:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:45:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:45:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:45:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:45:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:45:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:45:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 20:45:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:45:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:45:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 20:45:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-12-13 20:45:36,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:45:36,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412864659] [2022-12-13 20:45:36,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412864659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:45:36,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:45:36,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 20:45:36,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770510012] [2022-12-13 20:45:36,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:45:36,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 20:45:36,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:45:36,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 20:45:36,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 20:45:36,684 INFO L87 Difference]: Start difference. First operand 6186 states and 8715 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 20:45:40,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:45:46,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:45:46,507 INFO L93 Difference]: Finished difference Result 15302 states and 22494 transitions. [2022-12-13 20:45:46,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:45:46,508 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 173 [2022-12-13 20:45:46,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:45:46,545 INFO L225 Difference]: With dead ends: 15302 [2022-12-13 20:45:46,545 INFO L226 Difference]: Without dead ends: 9138 [2022-12-13 20:45:46,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-12-13 20:45:46,559 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 2560 mSDsluCounter, 3611 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 1702 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 4638 SdHoareTripleChecker+Invalid, 5272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1702 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:45:46,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 4638 Invalid, 5272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1702 Valid, 3569 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-12-13 20:45:46,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9138 states. [2022-12-13 20:45:46,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9138 to 7334. [2022-12-13 20:45:46,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7334 states, 5239 states have (on average 1.2924222179805307) internal successors, (6771), 5359 states have internal predecessors, (6771), 1455 states have call successors, (1455), 420 states have call predecessors, (1455), 639 states have return successors, (2228), 1590 states have call predecessors, (2228), 1454 states have call successors, (2228) [2022-12-13 20:45:46,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7334 states to 7334 states and 10454 transitions. [2022-12-13 20:45:46,990 INFO L78 Accepts]: Start accepts. Automaton has 7334 states and 10454 transitions. Word has length 173 [2022-12-13 20:45:46,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:45:46,990 INFO L495 AbstractCegarLoop]: Abstraction has 7334 states and 10454 transitions. [2022-12-13 20:45:46,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-13 20:45:46,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7334 states and 10454 transitions. [2022-12-13 20:45:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-12-13 20:45:46,995 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:45:46,995 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:45:46,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:45:46,995 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:45:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:45:46,995 INFO L85 PathProgramCache]: Analyzing trace with hash -581765805, now seen corresponding path program 1 times [2022-12-13 20:45:46,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:45:46,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851313329] [2022-12-13 20:45:46,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:45:46,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:45:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:45:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:45:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:45:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:45:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:45:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:45:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:45:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:45:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:45:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:45:47,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:45:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:45:47,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:45:47,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:45:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:45:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:45:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:45:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:45:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:45:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:45:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 20:45:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:45:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:45:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:45:47,624 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-12-13 20:45:47,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:45:47,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851313329] [2022-12-13 20:45:47,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851313329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:45:47,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:45:47,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:45:47,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629980270] [2022-12-13 20:45:47,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:45:47,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:45:47,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:45:47,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:45:47,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:45:47,627 INFO L87 Difference]: Start difference. First operand 7334 states and 10454 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 20:45:51,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:46:00,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:46:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:06,814 INFO L93 Difference]: Finished difference Result 19240 states and 30370 transitions. [2022-12-13 20:46:06,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-13 20:46:06,815 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 182 [2022-12-13 20:46:06,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:06,847 INFO L225 Difference]: With dead ends: 19240 [2022-12-13 20:46:06,847 INFO L226 Difference]: Without dead ends: 9078 [2022-12-13 20:46:06,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=248, Invalid=874, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 20:46:06,889 INFO L413 NwaCegarLoop]: 1811 mSDtfsCounter, 7308 mSDsluCounter, 5934 mSDsCounter, 0 mSdLazyCounter, 7666 mSolverCounterSat, 4766 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7596 SdHoareTripleChecker+Valid, 7745 SdHoareTripleChecker+Invalid, 12434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4766 IncrementalHoareTripleChecker+Valid, 7666 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:06,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7596 Valid, 7745 Invalid, 12434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4766 Valid, 7666 Invalid, 2 Unknown, 0 Unchecked, 18.0s Time] [2022-12-13 20:46:06,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9078 states. [2022-12-13 20:46:07,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9078 to 7284. [2022-12-13 20:46:07,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7284 states, 5189 states have (on average 1.241472345345924) internal successors, (6442), 5309 states have internal predecessors, (6442), 1455 states have call successors, (1455), 420 states have call predecessors, (1455), 639 states have return successors, (2228), 1590 states have call predecessors, (2228), 1454 states have call successors, (2228) [2022-12-13 20:46:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7284 states to 7284 states and 10125 transitions. [2022-12-13 20:46:07,375 INFO L78 Accepts]: Start accepts. Automaton has 7284 states and 10125 transitions. Word has length 182 [2022-12-13 20:46:07,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:07,376 INFO L495 AbstractCegarLoop]: Abstraction has 7284 states and 10125 transitions. [2022-12-13 20:46:07,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 20:46:07,376 INFO L276 IsEmpty]: Start isEmpty. Operand 7284 states and 10125 transitions. [2022-12-13 20:46:07,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-12-13 20:46:07,383 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:07,383 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:46:07,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:46:07,383 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:07,384 INFO L85 PathProgramCache]: Analyzing trace with hash -86138093, now seen corresponding path program 1 times [2022-12-13 20:46:07,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:07,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404697590] [2022-12-13 20:46:07,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:07,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:46:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:46:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:46:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:46:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:46:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:46:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:46:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:46:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:46:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:46:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:46:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:46:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:46:07,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 20:46:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:46:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:07,935 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-12-13 20:46:07,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:07,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404697590] [2022-12-13 20:46:07,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404697590] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:07,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:07,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:46:07,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134851688] [2022-12-13 20:46:07,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:07,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:46:07,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:46:07,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:46:07,937 INFO L87 Difference]: Start difference. First operand 7284 states and 10125 transitions. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 20:46:11,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:46:20,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:46:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:28,908 INFO L93 Difference]: Finished difference Result 19093 states and 28534 transitions. [2022-12-13 20:46:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-12-13 20:46:28,908 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 182 [2022-12-13 20:46:28,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:28,935 INFO L225 Difference]: With dead ends: 19093 [2022-12-13 20:46:28,935 INFO L226 Difference]: Without dead ends: 9026 [2022-12-13 20:46:28,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=289, Invalid=1043, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 20:46:28,955 INFO L413 NwaCegarLoop]: 1827 mSDtfsCounter, 5331 mSDsluCounter, 6301 mSDsCounter, 0 mSdLazyCounter, 8199 mSolverCounterSat, 3004 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5606 SdHoareTripleChecker+Valid, 8128 SdHoareTripleChecker+Invalid, 11205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3004 IncrementalHoareTripleChecker+Valid, 8199 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:28,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5606 Valid, 8128 Invalid, 11205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3004 Valid, 8199 Invalid, 2 Unknown, 0 Unchecked, 19.6s Time] [2022-12-13 20:46:28,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9026 states. [2022-12-13 20:46:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9026 to 7160. [2022-12-13 20:46:29,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7160 states, 5080 states have (on average 1.2383858267716537) internal successors, (6291), 5204 states have internal predecessors, (6291), 1439 states have call successors, (1439), 439 states have call predecessors, (1439), 640 states have return successors, (2165), 1554 states have call predecessors, (2165), 1438 states have call successors, (2165) [2022-12-13 20:46:29,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7160 states to 7160 states and 9895 transitions. [2022-12-13 20:46:29,431 INFO L78 Accepts]: Start accepts. Automaton has 7160 states and 9895 transitions. Word has length 182 [2022-12-13 20:46:29,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:29,431 INFO L495 AbstractCegarLoop]: Abstraction has 7160 states and 9895 transitions. [2022-12-13 20:46:29,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (24), 8 states have call predecessors, (24), 2 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-12-13 20:46:29,431 INFO L276 IsEmpty]: Start isEmpty. Operand 7160 states and 9895 transitions. [2022-12-13 20:46:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-12-13 20:46:29,437 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:29,437 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:46:29,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:46:29,437 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:29,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:29,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2064083720, now seen corresponding path program 1 times [2022-12-13 20:46:29,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:29,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917103021] [2022-12-13 20:46:29,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:29,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:46:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:46:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:29,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:46:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:46:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:46:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:46:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:46:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:46:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:46:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:46:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:46:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:46:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:46:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:46:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:29,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:30,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:46:30,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:30,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:46:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:30,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:46:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:46:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:30,054 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-12-13 20:46:30,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:30,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917103021] [2022-12-13 20:46:30,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917103021] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:46:30,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162548208] [2022-12-13 20:46:30,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:30,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:46:30,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:46:30,056 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:46:30,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:46:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:30,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 2596 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:46:30,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:46:30,601 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-13 20:46:30,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:46:30,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162548208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:30,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:46:30,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-12-13 20:46:30,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316629937] [2022-12-13 20:46:30,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:30,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:46:30,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:30,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:46:30,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:46:30,604 INFO L87 Difference]: Start difference. First operand 7160 states and 9895 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 20:46:31,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:31,662 INFO L93 Difference]: Finished difference Result 14322 states and 20309 transitions. [2022-12-13 20:46:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:46:31,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 224 [2022-12-13 20:46:31,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:31,688 INFO L225 Difference]: With dead ends: 14322 [2022-12-13 20:46:31,688 INFO L226 Difference]: Without dead ends: 7188 [2022-12-13 20:46:31,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:46:31,704 INFO L413 NwaCegarLoop]: 1291 mSDtfsCounter, 4 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:31,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2579 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 20:46:31,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7188 states. [2022-12-13 20:46:32,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7188 to 7167. [2022-12-13 20:46:32,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7167 states, 5087 states have (on average 1.238057794377826) internal successors, (6298), 5211 states have internal predecessors, (6298), 1439 states have call successors, (1439), 439 states have call predecessors, (1439), 640 states have return successors, (2165), 1554 states have call predecessors, (2165), 1438 states have call successors, (2165) [2022-12-13 20:46:32,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7167 states to 7167 states and 9902 transitions. [2022-12-13 20:46:32,242 INFO L78 Accepts]: Start accepts. Automaton has 7167 states and 9902 transitions. Word has length 224 [2022-12-13 20:46:32,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:32,243 INFO L495 AbstractCegarLoop]: Abstraction has 7167 states and 9902 transitions. [2022-12-13 20:46:32,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 20:46:32,243 INFO L276 IsEmpty]: Start isEmpty. Operand 7167 states and 9902 transitions. [2022-12-13 20:46:32,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-12-13 20:46:32,251 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:32,251 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:46:32,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:46:32,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:46:32,452 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:32,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:32,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1100101276, now seen corresponding path program 1 times [2022-12-13 20:46:32,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:32,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295013979] [2022-12-13 20:46:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:32,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:46:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:46:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:46:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:46:32,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:46:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:46:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:46:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:46:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:46:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:46:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:46:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:46:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:46:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:46:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:32,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:46:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:46:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:33,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:46:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:46:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:33,039 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-13 20:46:33,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:33,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295013979] [2022-12-13 20:46:33,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295013979] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:46:33,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927241993] [2022-12-13 20:46:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:33,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:46:33,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:46:33,040 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:46:33,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 20:46:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:33,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 2696 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:46:33,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:46:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-12-13 20:46:33,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:46:33,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927241993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:33,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:46:33,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2022-12-13 20:46:33,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467282064] [2022-12-13 20:46:33,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:33,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:46:33,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:33,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:46:33,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:46:33,551 INFO L87 Difference]: Start difference. First operand 7167 states and 9902 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 20:46:34,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:34,016 INFO L93 Difference]: Finished difference Result 14322 states and 20302 transitions. [2022-12-13 20:46:34,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:46:34,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 227 [2022-12-13 20:46:34,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:34,045 INFO L225 Difference]: With dead ends: 14322 [2022-12-13 20:46:34,045 INFO L226 Difference]: Without dead ends: 7181 [2022-12-13 20:46:34,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:46:34,067 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:34,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2581 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:46:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7181 states. [2022-12-13 20:46:34,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7181 to 7174. [2022-12-13 20:46:34,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7174 states, 5094 states have (on average 1.2377306635257166) internal successors, (6305), 5218 states have internal predecessors, (6305), 1439 states have call successors, (1439), 439 states have call predecessors, (1439), 640 states have return successors, (2165), 1554 states have call predecessors, (2165), 1438 states have call successors, (2165) [2022-12-13 20:46:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 9909 transitions. [2022-12-13 20:46:34,591 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 9909 transitions. Word has length 227 [2022-12-13 20:46:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:34,591 INFO L495 AbstractCegarLoop]: Abstraction has 7174 states and 9909 transitions. [2022-12-13 20:46:34,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 20:46:34,591 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 9909 transitions. [2022-12-13 20:46:34,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-13 20:46:34,597 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:34,598 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:46:34,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 20:46:34,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:46:34,800 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:34,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:34,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1638687648, now seen corresponding path program 1 times [2022-12-13 20:46:34,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:34,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724715907] [2022-12-13 20:46:34,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:34,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:46:35,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:46:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:46:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:46:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:46:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:46:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:46:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:35,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:46:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:46:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:46:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:46:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:46:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:46:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:46:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:46:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:46:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:46:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:46:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-12-13 20:46:35,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:35,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724715907] [2022-12-13 20:46:35,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724715907] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:46:35,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263999109] [2022-12-13 20:46:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:35,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:46:35,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:46:35,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:46:35,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 20:46:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:35,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 2723 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:46:35,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:46:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-12-13 20:46:36,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:46:36,146 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-12-13 20:46:36,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263999109] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:46:36,146 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:46:36,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 13 [2022-12-13 20:46:36,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523726819] [2022-12-13 20:46:36,147 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:46:36,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:46:36,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:36,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:46:36,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:46:36,149 INFO L87 Difference]: Start difference. First operand 7174 states and 9909 transitions. Second operand has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 7 states have internal predecessors, (171), 5 states have call successors, (47), 8 states have call predecessors, (47), 2 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) [2022-12-13 20:46:39,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:46:47,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:46:47,958 INFO L93 Difference]: Finished difference Result 21055 states and 32192 transitions. [2022-12-13 20:46:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:46:47,959 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 7 states have internal predecessors, (171), 5 states have call successors, (47), 8 states have call predecessors, (47), 2 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) Word has length 229 [2022-12-13 20:46:47,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:46:48,005 INFO L225 Difference]: With dead ends: 21055 [2022-12-13 20:46:48,006 INFO L226 Difference]: Without dead ends: 13907 [2022-12-13 20:46:48,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-12-13 20:46:48,027 INFO L413 NwaCegarLoop]: 1387 mSDtfsCounter, 2901 mSDsluCounter, 5372 mSDsCounter, 0 mSdLazyCounter, 4794 mSolverCounterSat, 1354 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3311 SdHoareTripleChecker+Valid, 6759 SdHoareTripleChecker+Invalid, 6149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1354 IncrementalHoareTripleChecker+Valid, 4794 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:46:48,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3311 Valid, 6759 Invalid, 6149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1354 Valid, 4794 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-12-13 20:46:48,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13907 states. [2022-12-13 20:46:48,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13907 to 7288. [2022-12-13 20:46:48,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7288 states, 5190 states have (on average 1.2368015414258189) internal successors, (6419), 5314 states have internal predecessors, (6419), 1457 states have call successors, (1457), 439 states have call predecessors, (1457), 640 states have return successors, (2201), 1572 states have call predecessors, (2201), 1456 states have call successors, (2201) [2022-12-13 20:46:48,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7288 states to 7288 states and 10077 transitions. [2022-12-13 20:46:48,736 INFO L78 Accepts]: Start accepts. Automaton has 7288 states and 10077 transitions. Word has length 229 [2022-12-13 20:46:48,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:46:48,736 INFO L495 AbstractCegarLoop]: Abstraction has 7288 states and 10077 transitions. [2022-12-13 20:46:48,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 7 states have internal predecessors, (171), 5 states have call successors, (47), 8 states have call predecessors, (47), 2 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) [2022-12-13 20:46:48,736 INFO L276 IsEmpty]: Start isEmpty. Operand 7288 states and 10077 transitions. [2022-12-13 20:46:48,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-12-13 20:46:48,743 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:46:48,743 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:46:48,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 20:46:48,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 20:46:48,945 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:46:48,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:46:48,947 INFO L85 PathProgramCache]: Analyzing trace with hash -285792022, now seen corresponding path program 1 times [2022-12-13 20:46:48,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:46:48,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808676876] [2022-12-13 20:46:48,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:46:48,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:46:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:46:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:46:49,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:46:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:46:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:46:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:46:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:46:49,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:46:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:46:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:46:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:46:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:46:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:46:49,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:46:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:46:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:46:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:46:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:46:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:46:49,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:46:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:46:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:46:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:46:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:46:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 20:46:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 20:46:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 20:46:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:46:49,653 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-12-13 20:46:49,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:46:49,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808676876] [2022-12-13 20:46:49,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808676876] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:46:49,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:46:49,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:46:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168983236] [2022-12-13 20:46:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:46:49,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:46:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:46:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:46:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:46:49,656 INFO L87 Difference]: Start difference. First operand 7288 states and 10077 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (32), 9 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 20:46:53,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:47:01,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:01,725 INFO L93 Difference]: Finished difference Result 18235 states and 27694 transitions. [2022-12-13 20:47:01,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:47:01,726 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (32), 9 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 258 [2022-12-13 20:47:01,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:01,761 INFO L225 Difference]: With dead ends: 18235 [2022-12-13 20:47:01,761 INFO L226 Difference]: Without dead ends: 10973 [2022-12-13 20:47:01,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2022-12-13 20:47:01,782 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 2913 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 4096 mSolverCounterSat, 2421 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3027 SdHoareTripleChecker+Valid, 4528 SdHoareTripleChecker+Invalid, 6518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2421 IncrementalHoareTripleChecker+Valid, 4096 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:01,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3027 Valid, 4528 Invalid, 6518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2421 Valid, 4096 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-12-13 20:47:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10973 states. [2022-12-13 20:47:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10973 to 8195. [2022-12-13 20:47:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8195 states, 5885 states have (on average 1.2521665250637213) internal successors, (7369), 6011 states have internal predecessors, (7369), 1740 states have call successors, (1740), 439 states have call predecessors, (1740), 569 states have return successors, (2310), 1793 states have call predecessors, (2310), 1739 states have call successors, (2310) [2022-12-13 20:47:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8195 states to 8195 states and 11419 transitions. [2022-12-13 20:47:02,462 INFO L78 Accepts]: Start accepts. Automaton has 8195 states and 11419 transitions. Word has length 258 [2022-12-13 20:47:02,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:02,463 INFO L495 AbstractCegarLoop]: Abstraction has 8195 states and 11419 transitions. [2022-12-13 20:47:02,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (32), 9 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 20:47:02,463 INFO L276 IsEmpty]: Start isEmpty. Operand 8195 states and 11419 transitions. [2022-12-13 20:47:02,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-12-13 20:47:02,470 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:02,470 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:47:02,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:47:02,470 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:02,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:02,470 INFO L85 PathProgramCache]: Analyzing trace with hash -430675835, now seen corresponding path program 1 times [2022-12-13 20:47:02,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:02,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727289968] [2022-12-13 20:47:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:02,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:47:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:47:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:47:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:47:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:47:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:47:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:47:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:47:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:47:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:47:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:47:02,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:47:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:47:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:47:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:47:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:47:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:47:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:47:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:47:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:03,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 20:47:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:47:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-12-13 20:47:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:03,060 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-12-13 20:47:03,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:03,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727289968] [2022-12-13 20:47:03,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727289968] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:47:03,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820631001] [2022-12-13 20:47:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:03,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:47:03,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:47:03,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:47:03,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 20:47:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:03,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 2840 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:47:03,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:47:03,579 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2022-12-13 20:47:03,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:47:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-12-13 20:47:03,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820631001] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:47:03,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:47:03,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 13 [2022-12-13 20:47:03,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305295791] [2022-12-13 20:47:03,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:47:03,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:47:03,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:03,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:47:03,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:47:03,731 INFO L87 Difference]: Start difference. First operand 8195 states and 11419 transitions. Second operand has 13 states, 13 states have (on average 13.307692307692308) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (57), 9 states have call predecessors, (57), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2022-12-13 20:47:07,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:47:16,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:16,042 INFO L93 Difference]: Finished difference Result 19223 states and 29538 transitions. [2022-12-13 20:47:16,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 20:47:16,043 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.307692307692308) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (57), 9 states have call predecessors, (57), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 266 [2022-12-13 20:47:16,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:16,080 INFO L225 Difference]: With dead ends: 19223 [2022-12-13 20:47:16,081 INFO L226 Difference]: Without dead ends: 11054 [2022-12-13 20:47:16,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=261, Invalid=609, Unknown=0, NotChecked=0, Total=870 [2022-12-13 20:47:16,106 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 2365 mSDsluCounter, 4415 mSDsCounter, 0 mSdLazyCounter, 4793 mSolverCounterSat, 1753 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 5324 SdHoareTripleChecker+Invalid, 6547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1753 IncrementalHoareTripleChecker+Valid, 4793 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:16,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 5324 Invalid, 6547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1753 Valid, 4793 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-12-13 20:47:16,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11054 states. [2022-12-13 20:47:16,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11054 to 8297. [2022-12-13 20:47:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8297 states, 5963 states have (on average 1.2488680194532953) internal successors, (7447), 6086 states have internal predecessors, (7447), 1764 states have call successors, (1764), 439 states have call predecessors, (1764), 569 states have return successors, (2343), 1820 states have call predecessors, (2343), 1763 states have call successors, (2343) [2022-12-13 20:47:16,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8297 states to 8297 states and 11554 transitions. [2022-12-13 20:47:16,760 INFO L78 Accepts]: Start accepts. Automaton has 8297 states and 11554 transitions. Word has length 266 [2022-12-13 20:47:16,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:16,761 INFO L495 AbstractCegarLoop]: Abstraction has 8297 states and 11554 transitions. [2022-12-13 20:47:16,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.307692307692308) internal successors, (173), 6 states have internal predecessors, (173), 4 states have call successors, (57), 9 states have call predecessors, (57), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2022-12-13 20:47:16,761 INFO L276 IsEmpty]: Start isEmpty. Operand 8297 states and 11554 transitions. [2022-12-13 20:47:16,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-12-13 20:47:16,767 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:16,767 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:47:16,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 20:47:16,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 20:47:16,969 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:16,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:16,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1852899630, now seen corresponding path program 1 times [2022-12-13 20:47:16,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:16,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327797464] [2022-12-13 20:47:16,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:16,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:47:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:47:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:47:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:47:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:47:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:17,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:47:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:47:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:47:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:47:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:47:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:47:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:47:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:47:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:47:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:47:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:47:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:47:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 20:47:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 20:47:17,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-12-13 20:47:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-12-13 20:47:17,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:17,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327797464] [2022-12-13 20:47:17,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327797464] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:47:17,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821569776] [2022-12-13 20:47:17,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:17,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:47:17,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:47:17,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:47:17,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 20:47:18,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:18,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 3044 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:47:18,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:47:18,177 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-12-13 20:47:18,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:47:18,323 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-12-13 20:47:18,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821569776] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:47:18,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:47:18,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 12 [2022-12-13 20:47:18,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793917043] [2022-12-13 20:47:18,324 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:47:18,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:47:18,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:18,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:47:18,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:47:18,326 INFO L87 Difference]: Start difference. First operand 8297 states and 11554 transitions. Second operand has 12 states, 12 states have (on average 12.75) internal successors, (153), 6 states have internal predecessors, (153), 2 states have call successors, (45), 8 states have call predecessors, (45), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 20:47:21,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:47:29,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:29,025 INFO L93 Difference]: Finished difference Result 19367 states and 29667 transitions. [2022-12-13 20:47:29,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:47:29,026 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 6 states have internal predecessors, (153), 2 states have call successors, (45), 8 states have call predecessors, (45), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 295 [2022-12-13 20:47:29,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:29,062 INFO L225 Difference]: With dead ends: 19367 [2022-12-13 20:47:29,063 INFO L226 Difference]: Without dead ends: 11096 [2022-12-13 20:47:29,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 680 GetRequests, 660 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-12-13 20:47:29,088 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 1333 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 4262 mSolverCounterSat, 651 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 4914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 4262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:29,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 5267 Invalid, 4914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 4262 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-12-13 20:47:29,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11096 states. [2022-12-13 20:47:29,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11096 to 8339. [2022-12-13 20:47:29,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8339 states, 6005 states have (on average 1.247127393838468) internal successors, (7489), 6128 states have internal predecessors, (7489), 1764 states have call successors, (1764), 439 states have call predecessors, (1764), 569 states have return successors, (2343), 1820 states have call predecessors, (2343), 1763 states have call successors, (2343) [2022-12-13 20:47:29,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8339 states to 8339 states and 11596 transitions. [2022-12-13 20:47:29,758 INFO L78 Accepts]: Start accepts. Automaton has 8339 states and 11596 transitions. Word has length 295 [2022-12-13 20:47:29,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:29,758 INFO L495 AbstractCegarLoop]: Abstraction has 8339 states and 11596 transitions. [2022-12-13 20:47:29,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 6 states have internal predecessors, (153), 2 states have call successors, (45), 8 states have call predecessors, (45), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 20:47:29,759 INFO L276 IsEmpty]: Start isEmpty. Operand 8339 states and 11596 transitions. [2022-12-13 20:47:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-12-13 20:47:29,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:29,766 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:47:29,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 20:47:29,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 20:47:29,968 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:29,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:29,969 INFO L85 PathProgramCache]: Analyzing trace with hash -394605410, now seen corresponding path program 2 times [2022-12-13 20:47:29,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:29,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071195755] [2022-12-13 20:47:29,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:29,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:47:30,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:47:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:47:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:47:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:47:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:47:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:47:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:47:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:47:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:47:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:47:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:47:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:47:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:47:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:47:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:47:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 20:47:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 20:47:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:30,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 20:47:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-12-13 20:47:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:30,619 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-12-13 20:47:30,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:30,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071195755] [2022-12-13 20:47:30,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071195755] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:47:30,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974383893] [2022-12-13 20:47:30,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:47:30,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:47:30,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:47:30,621 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:47:30,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 20:47:31,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:47:31,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:47:31,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:47:31,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:47:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-12-13 20:47:31,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:47:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-12-13 20:47:31,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974383893] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:47:31,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:47:31,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 12 [2022-12-13 20:47:31,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080524488] [2022-12-13 20:47:31,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:47:31,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:47:31,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:31,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:47:31,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:47:31,466 INFO L87 Difference]: Start difference. First operand 8339 states and 11596 transitions. Second operand has 12 states, 12 states have (on average 13.0) internal successors, (156), 6 states have internal predecessors, (156), 2 states have call successors, (45), 8 states have call predecessors, (45), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 20:47:34,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:47:40,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:40,780 INFO L93 Difference]: Finished difference Result 19633 states and 29954 transitions. [2022-12-13 20:47:40,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 20:47:40,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.0) internal successors, (156), 6 states have internal predecessors, (156), 2 states have call successors, (45), 8 states have call predecessors, (45), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 301 [2022-12-13 20:47:40,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:40,820 INFO L225 Difference]: With dead ends: 19633 [2022-12-13 20:47:40,820 INFO L226 Difference]: Without dead ends: 11320 [2022-12-13 20:47:40,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 672 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=360, Unknown=0, NotChecked=0, Total=506 [2022-12-13 20:47:40,845 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 1958 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 2484 mSolverCounterSat, 1247 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 3273 SdHoareTripleChecker+Invalid, 3732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1247 IncrementalHoareTripleChecker+Valid, 2484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:40,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 3273 Invalid, 3732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1247 Valid, 2484 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-12-13 20:47:40,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11320 states. [2022-12-13 20:47:41,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11320 to 8570. [2022-12-13 20:47:41,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8570 states, 6236 states have (on average 1.2413406029506093) internal successors, (7741), 6359 states have internal predecessors, (7741), 1764 states have call successors, (1764), 439 states have call predecessors, (1764), 569 states have return successors, (2343), 1820 states have call predecessors, (2343), 1763 states have call successors, (2343) [2022-12-13 20:47:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8570 states to 8570 states and 11848 transitions. [2022-12-13 20:47:41,603 INFO L78 Accepts]: Start accepts. Automaton has 8570 states and 11848 transitions. Word has length 301 [2022-12-13 20:47:41,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:41,603 INFO L495 AbstractCegarLoop]: Abstraction has 8570 states and 11848 transitions. [2022-12-13 20:47:41,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.0) internal successors, (156), 6 states have internal predecessors, (156), 2 states have call successors, (45), 8 states have call predecessors, (45), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-12-13 20:47:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 8570 states and 11848 transitions. [2022-12-13 20:47:41,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-12-13 20:47:41,615 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:41,615 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:47:41,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 20:47:41,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 20:47:41,817 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:41,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:41,818 INFO L85 PathProgramCache]: Analyzing trace with hash -338074282, now seen corresponding path program 2 times [2022-12-13 20:47:41,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:41,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686861966] [2022-12-13 20:47:41,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:41,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:47:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:47:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:47:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:47:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:47:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:47:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:47:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:47:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:47:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:47:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:47:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:47:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:47:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:47:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:47:42,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:47:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:47:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:47:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:47:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:47:42,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:47:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:47:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:47:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:47:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:47:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:42,388 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-12-13 20:47:42,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:42,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686861966] [2022-12-13 20:47:42,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686861966] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:47:42,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159873428] [2022-12-13 20:47:42,389 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:47:42,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:47:42,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:47:42,390 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:47:42,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 20:47:43,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:47:43,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:47:43,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:47:43,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:47:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2022-12-13 20:47:43,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:47:43,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159873428] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:47:43,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:47:43,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 12 [2022-12-13 20:47:43,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878544616] [2022-12-13 20:47:43,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:47:43,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:47:43,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:43,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:47:43,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:47:43,404 INFO L87 Difference]: Start difference. First operand 8570 states and 11848 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-13 20:47:45,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:47:45,968 INFO L93 Difference]: Finished difference Result 25660 states and 35479 transitions. [2022-12-13 20:47:45,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:47:45,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 290 [2022-12-13 20:47:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:47:46,064 INFO L225 Difference]: With dead ends: 25660 [2022-12-13 20:47:46,064 INFO L226 Difference]: Without dead ends: 25652 [2022-12-13 20:47:46,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:47:46,072 INFO L413 NwaCegarLoop]: 2762 mSDtfsCounter, 2370 mSDsluCounter, 2133 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 4895 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:47:46,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 4895 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 20:47:46,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25652 states. [2022-12-13 20:47:47,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25652 to 25638. [2022-12-13 20:47:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25638 states, 18658 states have (on average 1.2416657733947905) internal successors, (23167), 19031 states have internal predecessors, (23167), 5276 states have call successors, (5276), 1311 states have call predecessors, (5276), 1703 states have return successors, (7015), 5442 states have call predecessors, (7015), 5275 states have call successors, (7015) [2022-12-13 20:47:48,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25638 states to 25638 states and 35458 transitions. [2022-12-13 20:47:48,092 INFO L78 Accepts]: Start accepts. Automaton has 25638 states and 35458 transitions. Word has length 290 [2022-12-13 20:47:48,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:47:48,093 INFO L495 AbstractCegarLoop]: Abstraction has 25638 states and 35458 transitions. [2022-12-13 20:47:48,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 3 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-13 20:47:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand 25638 states and 35458 transitions. [2022-12-13 20:47:48,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2022-12-13 20:47:48,113 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:47:48,114 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:47:48,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 20:47:48,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 20:47:48,314 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:47:48,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:47:48,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1349191532, now seen corresponding path program 1 times [2022-12-13 20:47:48,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:47:48,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699732031] [2022-12-13 20:47:48,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:47:48,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:47:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:47:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:47:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:47:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:47:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:47:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:47:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:48,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:47:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:47:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:47:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:47:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:47:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:47:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:47:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:47:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:47:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:47:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:47:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:47:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:47:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:47:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:47:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:47:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:47:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:47:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:47:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:47:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:47:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:47:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:47:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:47:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:47:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:47:48,977 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-12-13 20:47:48,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:47:48,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699732031] [2022-12-13 20:47:48,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699732031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:47:48,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:47:48,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:47:48,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464959976] [2022-12-13 20:47:48,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:47:48,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:47:48,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:47:48,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:47:48,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:47:48,979 INFO L87 Difference]: Start difference. First operand 25638 states and 35458 transitions. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (33), 9 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2022-12-13 20:47:53,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:48:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:48:08,780 INFO L93 Difference]: Finished difference Result 81469 states and 120643 transitions. [2022-12-13 20:48:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-13 20:48:08,781 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (33), 9 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) Word has length 290 [2022-12-13 20:48:08,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:48:08,997 INFO L225 Difference]: With dead ends: 81469 [2022-12-13 20:48:08,997 INFO L226 Difference]: Without dead ends: 55857 [2022-12-13 20:48:09,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=282, Invalid=1124, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 20:48:09,069 INFO L413 NwaCegarLoop]: 999 mSDtfsCounter, 8995 mSDsluCounter, 4373 mSDsCounter, 0 mSdLazyCounter, 6743 mSolverCounterSat, 7175 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9243 SdHoareTripleChecker+Valid, 5372 SdHoareTripleChecker+Invalid, 13919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7175 IncrementalHoareTripleChecker+Valid, 6743 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-12-13 20:48:09,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9243 Valid, 5372 Invalid, 13919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7175 Valid, 6743 Invalid, 1 Unknown, 0 Unchecked, 13.9s Time] [2022-12-13 20:48:09,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55857 states. [2022-12-13 20:48:12,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55857 to 36814. [2022-12-13 20:48:12,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36814 states, 26810 states have (on average 1.2430809399477807) internal successors, (33327), 27363 states have internal predecessors, (33327), 7572 states have call successors, (7572), 1875 states have call predecessors, (7572), 2431 states have return successors, (9991), 7786 states have call predecessors, (9991), 7571 states have call successors, (9991) [2022-12-13 20:48:12,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36814 states to 36814 states and 50890 transitions. [2022-12-13 20:48:12,710 INFO L78 Accepts]: Start accepts. Automaton has 36814 states and 50890 transitions. Word has length 290 [2022-12-13 20:48:12,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:48:12,711 INFO L495 AbstractCegarLoop]: Abstraction has 36814 states and 50890 transitions. [2022-12-13 20:48:12,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (33), 9 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 1 states have call successors, (32) [2022-12-13 20:48:12,711 INFO L276 IsEmpty]: Start isEmpty. Operand 36814 states and 50890 transitions. [2022-12-13 20:48:12,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-12-13 20:48:12,783 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:48:12,783 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:48:12,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 20:48:12,784 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:48:12,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:12,784 INFO L85 PathProgramCache]: Analyzing trace with hash -659765275, now seen corresponding path program 1 times [2022-12-13 20:48:12,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:12,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149885030] [2022-12-13 20:48:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:12,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:48:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:48:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:48:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:48:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:48:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:48:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:48:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:48:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:48:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:48:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:48:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:48:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:48:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:48:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:48:13,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:48:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:48:13,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:48:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:48:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:48:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:48:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:48:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:48:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:48:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:48:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:48:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:48:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:48:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:48:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:48:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:48:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-12-13 20:48:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-12-13 20:48:13,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:48:13,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149885030] [2022-12-13 20:48:13,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149885030] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:48:13,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:48:13,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:48:13,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559740566] [2022-12-13 20:48:13,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:48:13,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:48:13,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:48:13,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:48:13,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:48:13,486 INFO L87 Difference]: Start difference. First operand 36814 states and 50890 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 20:48:18,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:48:31,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:48:31,407 INFO L93 Difference]: Finished difference Result 85301 states and 124888 transitions. [2022-12-13 20:48:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 20:48:31,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 300 [2022-12-13 20:48:31,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:48:31,580 INFO L225 Difference]: With dead ends: 85301 [2022-12-13 20:48:31,580 INFO L226 Difference]: Without dead ends: 47771 [2022-12-13 20:48:31,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2022-12-13 20:48:31,659 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 8019 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 4591 mSolverCounterSat, 6062 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8251 SdHoareTripleChecker+Valid, 3995 SdHoareTripleChecker+Invalid, 10654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6062 IncrementalHoareTripleChecker+Valid, 4591 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-12-13 20:48:31,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8251 Valid, 3995 Invalid, 10654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6062 Valid, 4591 Invalid, 1 Unknown, 0 Unchecked, 11.9s Time] [2022-12-13 20:48:31,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47771 states. [2022-12-13 20:48:34,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47771 to 25212. [2022-12-13 20:48:34,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25212 states, 18344 states have (on average 1.2390427387701701) internal successors, (22729), 18721 states have internal predecessors, (22729), 5196 states have call successors, (5196), 1267 states have call predecessors, (5196), 1671 states have return successors, (6959), 5370 states have call predecessors, (6959), 5195 states have call successors, (6959) [2022-12-13 20:48:34,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25212 states to 25212 states and 34884 transitions. [2022-12-13 20:48:34,572 INFO L78 Accepts]: Start accepts. Automaton has 25212 states and 34884 transitions. Word has length 300 [2022-12-13 20:48:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:48:34,573 INFO L495 AbstractCegarLoop]: Abstraction has 25212 states and 34884 transitions. [2022-12-13 20:48:34,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-13 20:48:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 25212 states and 34884 transitions. [2022-12-13 20:48:34,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2022-12-13 20:48:34,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:48:34,596 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:48:34,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 20:48:34,597 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:48:34,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:34,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1001444189, now seen corresponding path program 1 times [2022-12-13 20:48:34,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:34,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709052833] [2022-12-13 20:48:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:34,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:48:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:48:34,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:48:34,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:48:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:48:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:48:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:48:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:48:34,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:48:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:48:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:34,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:48:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:48:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:48:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:48:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:48:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:48:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:48:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:48:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:48:34,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:34,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:48:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:48:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:48:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:48:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:48:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:48:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:48:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:48:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:48:35,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:48:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:48:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:48:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-12-13 20:48:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:35,122 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-12-13 20:48:35,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:48:35,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709052833] [2022-12-13 20:48:35,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709052833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:48:35,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:48:35,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 20:48:35,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761254489] [2022-12-13 20:48:35,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:48:35,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:48:35,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:48:35,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:48:35,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 20:48:35,124 INFO L87 Difference]: Start difference. First operand 25212 states and 34884 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 20:48:38,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:48:49,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:48:49,340 INFO L93 Difference]: Finished difference Result 47647 states and 69280 transitions. [2022-12-13 20:48:49,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:48:49,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 300 [2022-12-13 20:48:49,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:48:49,414 INFO L225 Difference]: With dead ends: 47647 [2022-12-13 20:48:49,414 INFO L226 Difference]: Without dead ends: 22464 [2022-12-13 20:48:49,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-12-13 20:48:49,470 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 1728 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 4722 mSolverCounterSat, 949 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 5672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 949 IncrementalHoareTripleChecker+Valid, 4722 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-12-13 20:48:49,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1842 Valid, 4842 Invalid, 5672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [949 Valid, 4722 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2022-12-13 20:48:49,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22464 states. [2022-12-13 20:48:51,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22464 to 16907. [2022-12-13 20:48:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16907 states, 12278 states have (on average 1.2361133735136016) internal successors, (15177), 12534 states have internal predecessors, (15177), 3486 states have call successors, (3486), 852 states have call predecessors, (3486), 1142 states have return successors, (4757), 3619 states have call predecessors, (4757), 3485 states have call successors, (4757) [2022-12-13 20:48:51,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16907 states to 16907 states and 23420 transitions. [2022-12-13 20:48:51,123 INFO L78 Accepts]: Start accepts. Automaton has 16907 states and 23420 transitions. Word has length 300 [2022-12-13 20:48:51,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:48:51,123 INFO L495 AbstractCegarLoop]: Abstraction has 16907 states and 23420 transitions. [2022-12-13 20:48:51,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 3 states have internal predecessors, (156), 2 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-13 20:48:51,123 INFO L276 IsEmpty]: Start isEmpty. Operand 16907 states and 23420 transitions. [2022-12-13 20:48:51,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-12-13 20:48:51,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:48:51,137 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:48:51,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-13 20:48:51,137 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:48:51,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:48:51,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1266810316, now seen corresponding path program 1 times [2022-12-13 20:48:51,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:48:51,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131335288] [2022-12-13 20:48:51,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:48:51,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:48:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:48:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:48:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:48:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:48:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:48:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:48:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:48:51,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:48:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:48:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:48:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:48:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:48:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:48:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:48:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:48:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:48:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:48:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:48:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:48:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 20:48:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:48:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:48:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:48:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:48:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 20:48:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:48:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 20:48:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 20:48:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:48:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:48:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:48:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:48:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:48:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:48:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:48:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:52,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-12-13 20:48:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:48:52,012 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-12-13 20:48:52,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:48:52,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131335288] [2022-12-13 20:48:52,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131335288] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:48:52,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:48:52,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 20:48:52,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474055813] [2022-12-13 20:48:52,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:48:52,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:48:52,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:48:52,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:48:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:48:52,014 INFO L87 Difference]: Start difference. First operand 16907 states and 23420 transitions. Second operand has 13 states, 13 states have (on average 13.538461538461538) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (35), 11 states have call predecessors, (35), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-13 20:48:56,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:49:12,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:49:12,016 INFO L93 Difference]: Finished difference Result 35183 states and 53320 transitions. [2022-12-13 20:49:12,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 20:49:12,017 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.538461538461538) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (35), 11 states have call predecessors, (35), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 298 [2022-12-13 20:49:12,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:49:12,078 INFO L225 Difference]: With dead ends: 35183 [2022-12-13 20:49:12,078 INFO L226 Difference]: Without dead ends: 18419 [2022-12-13 20:49:12,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=323, Invalid=1009, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 20:49:12,121 INFO L413 NwaCegarLoop]: 1296 mSDtfsCounter, 5828 mSDsluCounter, 5377 mSDsCounter, 0 mSdLazyCounter, 8073 mSolverCounterSat, 5493 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6068 SdHoareTripleChecker+Valid, 6673 SdHoareTripleChecker+Invalid, 13567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5493 IncrementalHoareTripleChecker+Valid, 8073 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:49:12,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6068 Valid, 6673 Invalid, 13567 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5493 Valid, 8073 Invalid, 1 Unknown, 0 Unchecked, 17.0s Time] [2022-12-13 20:49:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18419 states. [2022-12-13 20:49:13,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18419 to 13837. [2022-12-13 20:49:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13837 states, 10062 states have (on average 1.2357384217849334) internal successors, (12434), 10271 states have internal predecessors, (12434), 2856 states have call successors, (2856), 689 states have call predecessors, (2856), 918 states have return successors, (3851), 2958 states have call predecessors, (3851), 2855 states have call successors, (3851) [2022-12-13 20:49:13,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13837 states to 13837 states and 19141 transitions. [2022-12-13 20:49:13,608 INFO L78 Accepts]: Start accepts. Automaton has 13837 states and 19141 transitions. Word has length 298 [2022-12-13 20:49:13,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:49:13,608 INFO L495 AbstractCegarLoop]: Abstraction has 13837 states and 19141 transitions. [2022-12-13 20:49:13,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.538461538461538) internal successors, (176), 4 states have internal predecessors, (176), 3 states have call successors, (35), 11 states have call predecessors, (35), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-13 20:49:13,608 INFO L276 IsEmpty]: Start isEmpty. Operand 13837 states and 19141 transitions. [2022-12-13 20:49:13,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2022-12-13 20:49:13,614 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:49:13,615 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:49:13,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 20:49:13,615 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:49:13,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:49:13,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1438452489, now seen corresponding path program 1 times [2022-12-13 20:49:13,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:49:13,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340003601] [2022-12-13 20:49:13,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:49:13,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:49:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:49:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:49:14,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:49:14,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:49:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:49:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:49:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:49:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:49:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:49:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:49:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:49:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:49:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:49:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:49:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:49:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:49:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:49:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:49:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:49:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:49:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:49:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:49:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 20:49:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:49:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:49:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:49:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:49:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:49:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:49:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:49:14,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:49:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-12-13 20:49:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:49:14,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:49:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:14,840 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-12-13 20:49:14,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:49:14,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340003601] [2022-12-13 20:49:14,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340003601] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:49:14,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:49:14,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 20:49:14,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040338518] [2022-12-13 20:49:14,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:49:14,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:49:14,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:49:14,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:49:14,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:49:14,842 INFO L87 Difference]: Start difference. First operand 13837 states and 19141 transitions. Second operand has 13 states, 13 states have (on average 12.923076923076923) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (36), 10 states have call predecessors, (36), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) [2022-12-13 20:49:18,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:49:28,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:49:28,151 INFO L93 Difference]: Finished difference Result 32096 states and 48393 transitions. [2022-12-13 20:49:28,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:49:28,151 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.923076923076923) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (36), 10 states have call predecessors, (36), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) Word has length 315 [2022-12-13 20:49:28,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:49:28,207 INFO L225 Difference]: With dead ends: 32096 [2022-12-13 20:49:28,207 INFO L226 Difference]: Without dead ends: 18402 [2022-12-13 20:49:28,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2022-12-13 20:49:28,243 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 3837 mSDsluCounter, 4206 mSDsCounter, 0 mSdLazyCounter, 4341 mSolverCounterSat, 3344 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3949 SdHoareTripleChecker+Valid, 5090 SdHoareTripleChecker+Invalid, 7686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3344 IncrementalHoareTripleChecker+Valid, 4341 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-13 20:49:28,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3949 Valid, 5090 Invalid, 7686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3344 Valid, 4341 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-12-13 20:49:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18402 states. [2022-12-13 20:49:29,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18402 to 13907. [2022-12-13 20:49:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13907 states, 10112 states have (on average 1.2355617088607596) internal successors, (12494), 10321 states have internal predecessors, (12494), 2866 states have call successors, (2866), 689 states have call predecessors, (2866), 928 states have return successors, (3931), 2978 states have call predecessors, (3931), 2865 states have call successors, (3931) [2022-12-13 20:49:29,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13907 states to 13907 states and 19291 transitions. [2022-12-13 20:49:29,776 INFO L78 Accepts]: Start accepts. Automaton has 13907 states and 19291 transitions. Word has length 315 [2022-12-13 20:49:29,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:49:29,776 INFO L495 AbstractCegarLoop]: Abstraction has 13907 states and 19291 transitions. [2022-12-13 20:49:29,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.923076923076923) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (36), 10 states have call predecessors, (36), 3 states have return successors, (35), 4 states have call predecessors, (35), 3 states have call successors, (35) [2022-12-13 20:49:29,776 INFO L276 IsEmpty]: Start isEmpty. Operand 13907 states and 19291 transitions. [2022-12-13 20:49:29,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-12-13 20:49:29,783 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:49:29,783 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:49:29,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 20:49:29,783 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:49:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:49:29,783 INFO L85 PathProgramCache]: Analyzing trace with hash 475769070, now seen corresponding path program 1 times [2022-12-13 20:49:29,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:49:29,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387081986] [2022-12-13 20:49:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:49:29,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:49:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:49:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:30,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:49:30,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:30,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:49:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:30,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:49:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:30,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:49:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:30,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:49:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:30,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:49:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:49:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:49:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:49:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:49:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:49:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:49:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:49:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:49:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:49:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:49:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:49:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:49:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 20:49:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 20:49:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:49:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:49:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 20:49:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:49:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:49:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:49:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:49:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:49:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:49:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:49:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:49:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-12-13 20:49:31,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:49:31,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:49:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:31,315 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-12-13 20:49:31,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:49:31,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387081986] [2022-12-13 20:49:31,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387081986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:49:31,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:49:31,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 20:49:31,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745057727] [2022-12-13 20:49:31,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:49:31,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 20:49:31,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:49:31,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 20:49:31,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-12-13 20:49:31,317 INFO L87 Difference]: Start difference. First operand 13907 states and 19291 transitions. Second operand has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (37), 10 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 20:49:35,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:49:45,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:49:45,039 INFO L93 Difference]: Finished difference Result 34751 states and 53437 transitions. [2022-12-13 20:49:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:49:45,040 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (37), 10 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 321 [2022-12-13 20:49:45,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:49:45,103 INFO L225 Difference]: With dead ends: 34751 [2022-12-13 20:49:45,103 INFO L226 Difference]: Without dead ends: 20987 [2022-12-13 20:49:45,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2022-12-13 20:49:45,142 INFO L413 NwaCegarLoop]: 989 mSDtfsCounter, 3548 mSDsluCounter, 5194 mSDsCounter, 0 mSdLazyCounter, 5385 mSolverCounterSat, 2867 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 6183 SdHoareTripleChecker+Invalid, 8253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2867 IncrementalHoareTripleChecker+Valid, 5385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:49:45,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3661 Valid, 6183 Invalid, 8253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2867 Valid, 5385 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-12-13 20:49:45,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20987 states. [2022-12-13 20:49:46,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20987 to 13937. [2022-12-13 20:49:46,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13937 states, 10142 states have (on average 1.2348649181620983) internal successors, (12524), 10351 states have internal predecessors, (12524), 2866 states have call successors, (2866), 689 states have call predecessors, (2866), 928 states have return successors, (3931), 2978 states have call predecessors, (3931), 2865 states have call successors, (3931) [2022-12-13 20:49:46,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13937 states to 13937 states and 19321 transitions. [2022-12-13 20:49:46,956 INFO L78 Accepts]: Start accepts. Automaton has 13937 states and 19321 transitions. Word has length 321 [2022-12-13 20:49:46,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:49:46,956 INFO L495 AbstractCegarLoop]: Abstraction has 13937 states and 19321 transitions. [2022-12-13 20:49:46,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.153846153846153) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (37), 10 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 20:49:46,956 INFO L276 IsEmpty]: Start isEmpty. Operand 13937 states and 19321 transitions. [2022-12-13 20:49:46,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-12-13 20:49:46,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:49:46,963 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:49:46,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 20:49:46,963 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:49:46,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:49:46,964 INFO L85 PathProgramCache]: Analyzing trace with hash -774688289, now seen corresponding path program 1 times [2022-12-13 20:49:46,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:49:46,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488535992] [2022-12-13 20:49:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:49:46,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:49:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:47,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:49:47,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:47,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:49:47,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:47,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:49:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:47,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:49:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:49:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:47,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:49:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:47,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:49:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:49:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:49:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:49:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:49:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:49:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:49:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:49:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:49:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:49:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:49:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:49:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:49:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 20:49:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-12-13 20:49:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:49:48,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:49:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 20:49:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:49:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:49:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:49:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:49:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:49:48,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:49:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:49:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:49:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:49:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-12-13 20:49:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:49:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:49:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:49:48,371 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2022-12-13 20:49:48,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:49:48,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488535992] [2022-12-13 20:49:48,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488535992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:49:48,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:49:48,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:49:48,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833389646] [2022-12-13 20:49:48,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:49:48,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:49:48,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:49:48,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:49:48,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:49:48,373 INFO L87 Difference]: Start difference. First operand 13937 states and 19321 transitions. Second operand has 12 states, 12 states have (on average 15.333333333333334) internal successors, (184), 4 states have internal predecessors, (184), 2 states have call successors, (37), 10 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 20:49:52,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:50:01,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:50:01,647 INFO L93 Difference]: Finished difference Result 32310 states and 49196 transitions. [2022-12-13 20:50:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 20:50:01,648 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.333333333333334) internal successors, (184), 4 states have internal predecessors, (184), 2 states have call successors, (37), 10 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 331 [2022-12-13 20:50:01,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:50:01,706 INFO L225 Difference]: With dead ends: 32310 [2022-12-13 20:50:01,706 INFO L226 Difference]: Without dead ends: 18380 [2022-12-13 20:50:01,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2022-12-13 20:50:01,746 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 3792 mSDsluCounter, 3943 mSDsCounter, 0 mSdLazyCounter, 4142 mSolverCounterSat, 3305 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3904 SdHoareTripleChecker+Valid, 4832 SdHoareTripleChecker+Invalid, 7448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3305 IncrementalHoareTripleChecker+Valid, 4142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:50:01,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3904 Valid, 4832 Invalid, 7448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3305 Valid, 4142 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-12-13 20:50:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18380 states. [2022-12-13 20:50:03,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18380 to 13948. [2022-12-13 20:50:03,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13948 states, 10153 states have (on average 1.2346104599625727) internal successors, (12535), 10362 states have internal predecessors, (12535), 2866 states have call successors, (2866), 689 states have call predecessors, (2866), 928 states have return successors, (3931), 2978 states have call predecessors, (3931), 2865 states have call successors, (3931) [2022-12-13 20:50:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13948 states to 13948 states and 19332 transitions. [2022-12-13 20:50:03,441 INFO L78 Accepts]: Start accepts. Automaton has 13948 states and 19332 transitions. Word has length 331 [2022-12-13 20:50:03,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:50:03,442 INFO L495 AbstractCegarLoop]: Abstraction has 13948 states and 19332 transitions. [2022-12-13 20:50:03,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.333333333333334) internal successors, (184), 4 states have internal predecessors, (184), 2 states have call successors, (37), 10 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 20:50:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 13948 states and 19332 transitions. [2022-12-13 20:50:03,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-12-13 20:50:03,453 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:50:03,453 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:50:03,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 20:50:03,454 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:50:03,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:03,454 INFO L85 PathProgramCache]: Analyzing trace with hash -784240999, now seen corresponding path program 1 times [2022-12-13 20:50:03,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:03,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928559637] [2022-12-13 20:50:03,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:03,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:50:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:50:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:50:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:50:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:50:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:50:04,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:50:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:04,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 20:50:04,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:50:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-12-13 20:50:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-12-13 20:50:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 20:50:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:50:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 20:50:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 20:50:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:50:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 20:50:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 20:50:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 20:50:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:50:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:50:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:50:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:50:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:50:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:50:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:50:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-12-13 20:50:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:50:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-12-13 20:50:04,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:50:04,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928559637] [2022-12-13 20:50:04,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928559637] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:50:04,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942269658] [2022-12-13 20:50:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:04,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:50:04,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:50:04,816 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:50:04,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 20:50:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:05,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 3283 conjuncts, 55 conjunts are in the unsatisfiable core [2022-12-13 20:50:05,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:50:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-12-13 20:50:05,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:50:05,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942269658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:50:05,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:50:05,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2022-12-13 20:50:05,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786662114] [2022-12-13 20:50:05,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:50:05,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 20:50:05,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:50:05,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 20:50:05,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-12-13 20:50:05,690 INFO L87 Difference]: Start difference. First operand 13948 states and 19332 transitions. Second operand has 10 states, 10 states have (on average 19.0) internal successors, (190), 7 states have internal predecessors, (190), 2 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (36), 5 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 20:50:07,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:50:07,282 INFO L93 Difference]: Finished difference Result 27880 states and 39780 transitions. [2022-12-13 20:50:07,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 20:50:07,283 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 19.0) internal successors, (190), 7 states have internal predecessors, (190), 2 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (36), 5 states have call predecessors, (36), 2 states have call successors, (36) Word has length 333 [2022-12-13 20:50:07,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:50:07,325 INFO L225 Difference]: With dead ends: 27880 [2022-12-13 20:50:07,325 INFO L226 Difference]: Without dead ends: 14076 [2022-12-13 20:50:07,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2022-12-13 20:50:07,359 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 4 mSDsluCounter, 10283 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 11573 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:50:07,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 11573 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:50:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14076 states. [2022-12-13 20:50:09,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14076 to 14038. [2022-12-13 20:50:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14038 states, 10223 states have (on average 1.2330040105644136) internal successors, (12605), 10422 states have internal predecessors, (12605), 2866 states have call successors, (2866), 689 states have call predecessors, (2866), 948 states have return successors, (3993), 3008 states have call predecessors, (3993), 2865 states have call successors, (3993) [2022-12-13 20:50:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14038 states to 14038 states and 19464 transitions. [2022-12-13 20:50:09,227 INFO L78 Accepts]: Start accepts. Automaton has 14038 states and 19464 transitions. Word has length 333 [2022-12-13 20:50:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:50:09,227 INFO L495 AbstractCegarLoop]: Abstraction has 14038 states and 19464 transitions. [2022-12-13 20:50:09,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.0) internal successors, (190), 7 states have internal predecessors, (190), 2 states have call successors, (37), 2 states have call predecessors, (37), 5 states have return successors, (36), 5 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-13 20:50:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 14038 states and 19464 transitions. [2022-12-13 20:50:09,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-12-13 20:50:09,242 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:50:09,242 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:50:09,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-13 20:50:09,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-12-13 20:50:09,444 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:50:09,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash 592518288, now seen corresponding path program 2 times [2022-12-13 20:50:09,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:09,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698777687] [2022-12-13 20:50:09,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:09,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:50:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:50:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:50:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:50:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:50:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:50:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:50:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 20:50:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 20:50:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 20:50:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 20:50:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 20:50:10,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 20:50:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 20:50:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 20:50:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 20:50:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-12-13 20:50:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 20:50:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:10,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 20:50:10,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:50:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:50:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:50:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:50:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:50:10,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:50:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:50:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-12-13 20:50:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:50:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-12-13 20:50:10,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:50:10,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698777687] [2022-12-13 20:50:10,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698777687] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:50:10,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489263444] [2022-12-13 20:50:10,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 20:50:10,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:50:10,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:50:10,643 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:50:10,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 20:50:11,756 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 20:50:11,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 20:50:11,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 3309 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 20:50:11,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:50:11,883 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 53 proven. 4 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-12-13 20:50:11,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:50:12,201 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-12-13 20:50:12,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489263444] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:50:12,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:50:12,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 5] total 20 [2022-12-13 20:50:12,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237268058] [2022-12-13 20:50:12,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:50:12,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 20:50:12,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:50:12,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 20:50:12,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-12-13 20:50:12,204 INFO L87 Difference]: Start difference. First operand 14038 states and 19464 transitions. Second operand has 20 states, 20 states have (on average 15.45) internal successors, (309), 11 states have internal predecessors, (309), 2 states have call successors, (80), 10 states have call predecessors, (80), 6 states have return successors, (64), 3 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-13 20:50:17,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:50:33,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:50:33,806 INFO L93 Difference]: Finished difference Result 32281 states and 49133 transitions. [2022-12-13 20:50:33,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-12-13 20:50:33,807 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 15.45) internal successors, (309), 11 states have internal predecessors, (309), 2 states have call successors, (80), 10 states have call predecessors, (80), 6 states have return successors, (64), 3 states have call predecessors, (64), 2 states have call successors, (64) Word has length 339 [2022-12-13 20:50:33,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:50:33,868 INFO L225 Difference]: With dead ends: 32281 [2022-12-13 20:50:33,868 INFO L226 Difference]: Without dead ends: 18210 [2022-12-13 20:50:33,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=422, Invalid=1384, Unknown=0, NotChecked=0, Total=1806 [2022-12-13 20:50:33,903 INFO L413 NwaCegarLoop]: 890 mSDtfsCounter, 1679 mSDsluCounter, 9272 mSDsCounter, 0 mSdLazyCounter, 9388 mSolverCounterSat, 941 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 10162 SdHoareTripleChecker+Invalid, 10330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 9388 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-12-13 20:50:33,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1792 Valid, 10162 Invalid, 10330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [941 Valid, 9388 Invalid, 1 Unknown, 0 Unchecked, 18.2s Time] [2022-12-13 20:50:33,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18210 states. [2022-12-13 20:50:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18210 to 14068. [2022-12-13 20:50:35,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14068 states, 10253 states have (on average 1.2322247147176437) internal successors, (12634), 10452 states have internal predecessors, (12634), 2866 states have call successors, (2866), 689 states have call predecessors, (2866), 948 states have return successors, (3983), 3008 states have call predecessors, (3983), 2865 states have call successors, (3983) [2022-12-13 20:50:35,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14068 states to 14068 states and 19483 transitions. [2022-12-13 20:50:35,545 INFO L78 Accepts]: Start accepts. Automaton has 14068 states and 19483 transitions. Word has length 339 [2022-12-13 20:50:35,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:50:35,545 INFO L495 AbstractCegarLoop]: Abstraction has 14068 states and 19483 transitions. [2022-12-13 20:50:35,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 15.45) internal successors, (309), 11 states have internal predecessors, (309), 2 states have call successors, (80), 10 states have call predecessors, (80), 6 states have return successors, (64), 3 states have call predecessors, (64), 2 states have call successors, (64) [2022-12-13 20:50:35,546 INFO L276 IsEmpty]: Start isEmpty. Operand 14068 states and 19483 transitions. [2022-12-13 20:50:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-12-13 20:50:35,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:50:35,553 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:50:35,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 20:50:35,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:50:35,754 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:50:35,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 272991462, now seen corresponding path program 1 times [2022-12-13 20:50:35,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:35,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985100457] [2022-12-13 20:50:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:35,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:36,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:36,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:50:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:36,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:50:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:36,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:50:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:36,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:50:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:36,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:50:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:50:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:36,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:50:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:50:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:50:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:50:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:50:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:50:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:50:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:50:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:50:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:50:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:50:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:50:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 20:50:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:37,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-12-13 20:50:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:50:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:50:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:50:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:50:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:50:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:50:37,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:50:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-12-13 20:50:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:50:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:37,476 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-12-13 20:50:37,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:50:37,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985100457] [2022-12-13 20:50:37,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985100457] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:50:37,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903131263] [2022-12-13 20:50:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:37,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:50:37,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:50:37,478 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:50:37,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 20:50:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:38,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 3380 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-13 20:50:38,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:50:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-12-13 20:50:39,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:50:39,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903131263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:50:39,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:50:39,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [16] total 28 [2022-12-13 20:50:39,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158336667] [2022-12-13 20:50:39,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:50:39,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:50:39,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:50:39,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:50:39,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2022-12-13 20:50:39,235 INFO L87 Difference]: Start difference. First operand 14068 states and 19483 transitions. Second operand has 14 states, 13 states have (on average 15.153846153846153) internal successors, (197), 11 states have internal predecessors, (197), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (38), 6 states have call predecessors, (38), 4 states have call successors, (38) [2022-12-13 20:50:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:50:43,423 INFO L93 Difference]: Finished difference Result 36462 states and 53238 transitions. [2022-12-13 20:50:43,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 20:50:43,424 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.153846153846153) internal successors, (197), 11 states have internal predecessors, (197), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (38), 6 states have call predecessors, (38), 4 states have call successors, (38) Word has length 348 [2022-12-13 20:50:43,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:50:43,492 INFO L225 Difference]: With dead ends: 36462 [2022-12-13 20:50:43,492 INFO L226 Difference]: Without dead ends: 22538 [2022-12-13 20:50:43,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=1821, Unknown=0, NotChecked=0, Total=1980 [2022-12-13 20:50:43,530 INFO L413 NwaCegarLoop]: 2573 mSDtfsCounter, 2040 mSDsluCounter, 29574 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 32147 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 20:50:43,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 32147 Invalid, 1043 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [199 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 20:50:43,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22538 states. [2022-12-13 20:50:45,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22538 to 20570. [2022-12-13 20:50:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20570 states, 14981 states have (on average 1.2250851078032174) internal successors, (18353), 15268 states have internal predecessors, (18353), 4130 states have call successors, (4130), 1058 states have call predecessors, (4130), 1458 states have return successors, (6462), 4362 states have call predecessors, (6462), 4129 states have call successors, (6462) [2022-12-13 20:50:46,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20570 states to 20570 states and 28945 transitions. [2022-12-13 20:50:46,008 INFO L78 Accepts]: Start accepts. Automaton has 20570 states and 28945 transitions. Word has length 348 [2022-12-13 20:50:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:50:46,008 INFO L495 AbstractCegarLoop]: Abstraction has 20570 states and 28945 transitions. [2022-12-13 20:50:46,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.153846153846153) internal successors, (197), 11 states have internal predecessors, (197), 4 states have call successors, (39), 2 states have call predecessors, (39), 5 states have return successors, (38), 6 states have call predecessors, (38), 4 states have call successors, (38) [2022-12-13 20:50:46,009 INFO L276 IsEmpty]: Start isEmpty. Operand 20570 states and 28945 transitions. [2022-12-13 20:50:46,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-12-13 20:50:46,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:50:46,037 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:50:46,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 20:50:46,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-12-13 20:50:46,238 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:50:46,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash 555027182, now seen corresponding path program 1 times [2022-12-13 20:50:46,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:46,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822849911] [2022-12-13 20:50:46,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:46,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:50:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:50:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:50:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:50:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:50:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:50:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:50:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:50:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 20:50:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:50:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:50:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:50:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:50:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:50:46,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:50:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:50:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:50:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:50:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:50:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:50:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 20:50:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:50:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:46,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:50:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 20:50:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:50:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 20:50:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 20:50:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:50:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:50:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:50:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:50:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:50:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:50:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:50:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-12-13 20:50:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:47,175 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2022-12-13 20:50:47,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:50:47,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822849911] [2022-12-13 20:50:47,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822849911] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:50:47,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889974720] [2022-12-13 20:50:47,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:47,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:50:47,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:50:47,177 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:50:47,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 20:50:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:50:48,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 3813 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 20:50:48,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:50:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-12-13 20:50:48,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:50:48,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889974720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:50:48,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:50:48,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-12-13 20:50:48,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910664702] [2022-12-13 20:50:48,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:50:48,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:50:48,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:50:48,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:50:48,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:50:48,183 INFO L87 Difference]: Start difference. First operand 20570 states and 28945 transitions. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 4 states have internal predecessors, (213), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-13 20:50:52,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:50:52,702 INFO L93 Difference]: Finished difference Result 57603 states and 81103 transitions. [2022-12-13 20:50:52,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:50:52,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 4 states have internal predecessors, (213), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) Word has length 353 [2022-12-13 20:50:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:50:52,832 INFO L225 Difference]: With dead ends: 57603 [2022-12-13 20:50:52,832 INFO L226 Difference]: Without dead ends: 37177 [2022-12-13 20:50:52,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-12-13 20:50:52,884 INFO L413 NwaCegarLoop]: 2532 mSDtfsCounter, 1245 mSDsluCounter, 6338 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 8870 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:50:52,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1247 Valid, 8870 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:50:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37177 states. [2022-12-13 20:50:56,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37177 to 28808. [2022-12-13 20:50:56,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28808 states, 20952 states have (on average 1.2238449789996182) internal successors, (25642), 21361 states have internal predecessors, (25642), 5797 states have call successors, (5797), 1488 states have call predecessors, (5797), 2058 states have return successors, (9112), 6125 states have call predecessors, (9112), 5796 states have call successors, (9112) [2022-12-13 20:50:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28808 states to 28808 states and 40551 transitions. [2022-12-13 20:50:56,730 INFO L78 Accepts]: Start accepts. Automaton has 28808 states and 40551 transitions. Word has length 353 [2022-12-13 20:50:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:50:56,730 INFO L495 AbstractCegarLoop]: Abstraction has 28808 states and 40551 transitions. [2022-12-13 20:50:56,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 4 states have internal predecessors, (213), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-13 20:50:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 28808 states and 40551 transitions. [2022-12-13 20:50:56,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-12-13 20:50:56,741 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:50:56,741 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:50:56,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 20:50:56,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 20:50:56,943 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:50:56,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:50:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1461335222, now seen corresponding path program 1 times [2022-12-13 20:50:56,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:50:56,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883580580] [2022-12-13 20:50:56,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:50:56,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:50:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:00,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:00,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:51:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:00,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:51:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:51:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:00,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:51:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:00,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:51:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:00,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:51:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:51:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:51:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:02,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:51:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:51:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:51:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:51:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:51:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:51:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:51:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:51:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:51:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:51:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 20:51:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:51:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 20:51:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:51:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 20:51:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:51:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:02,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 20:51:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:03,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:51:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-12-13 20:51:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-12-13 20:51:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:51:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,119 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 16 proven. 40 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2022-12-13 20:51:03,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:51:03,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883580580] [2022-12-13 20:51:03,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883580580] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:51:03,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667134818] [2022-12-13 20:51:03,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:51:03,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:51:03,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:51:03,121 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:51:03,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 20:51:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:03,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 4187 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 20:51:03,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:51:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-12-13 20:51:03,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:51:03,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667134818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:51:03,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 20:51:03,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2022-12-13 20:51:03,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14263555] [2022-12-13 20:51:03,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:51:03,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:51:03,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:51:03,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:51:03,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-12-13 20:51:03,959 INFO L87 Difference]: Start difference. First operand 28808 states and 40551 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 20:51:08,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:51:08,362 INFO L93 Difference]: Finished difference Result 62911 states and 92841 transitions. [2022-12-13 20:51:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:51:08,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 392 [2022-12-13 20:51:08,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:51:08,532 INFO L225 Difference]: With dead ends: 62911 [2022-12-13 20:51:08,532 INFO L226 Difference]: Without dead ends: 34247 [2022-12-13 20:51:08,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2022-12-13 20:51:08,604 INFO L413 NwaCegarLoop]: 1587 mSDtfsCounter, 576 mSDsluCounter, 3788 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 5375 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:51:08,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 5375 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 20:51:08,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34247 states. [2022-12-13 20:51:12,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34247 to 28885. [2022-12-13 20:51:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28885 states, 21022 states have (on average 1.2227666254400151) internal successors, (25705), 21438 states have internal predecessors, (25705), 5797 states have call successors, (5797), 1488 states have call predecessors, (5797), 2065 states have return successors, (9122), 6125 states have call predecessors, (9122), 5796 states have call successors, (9122) [2022-12-13 20:51:12,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28885 states to 28885 states and 40624 transitions. [2022-12-13 20:51:12,284 INFO L78 Accepts]: Start accepts. Automaton has 28885 states and 40624 transitions. Word has length 392 [2022-12-13 20:51:12,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:51:12,284 INFO L495 AbstractCegarLoop]: Abstraction has 28885 states and 40624 transitions. [2022-12-13 20:51:12,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-13 20:51:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 28885 states and 40624 transitions. [2022-12-13 20:51:12,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2022-12-13 20:51:12,294 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:51:12,294 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:51:12,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 20:51:12,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:51:12,496 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:51:12,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:51:12,497 INFO L85 PathProgramCache]: Analyzing trace with hash -549147050, now seen corresponding path program 1 times [2022-12-13 20:51:12,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:51:12,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927308782] [2022-12-13 20:51:12,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:51:12,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:51:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:12,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:51:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:51:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:51:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:51:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:51:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:51:12,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:51:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:51:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:12,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:51:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:51:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:51:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:51:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:51:13,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:51:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:51:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:51:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:51:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-12-13 20:51:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:51:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:51:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:51:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:51:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:51:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:51:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:51:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:51:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:51:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:51:13,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:51:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 20:51:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:51:13,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:51:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 20:51:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:51:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 20:51:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 20:51:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:51:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:51:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:51:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:51:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-12-13 20:51:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-12-13 20:51:13,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:51:13,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927308782] [2022-12-13 20:51:13,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927308782] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:51:13,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297649438] [2022-12-13 20:51:13,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:51:13,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:51:13,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:51:13,635 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:51:13,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 20:51:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:14,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 4371 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:51:14,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:51:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2022-12-13 20:51:14,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:51:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2022-12-13 20:51:14,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297649438] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:51:14,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:51:14,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-12-13 20:51:14,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910002272] [2022-12-13 20:51:14,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:51:14,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 20:51:14,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:51:14,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 20:51:14,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-12-13 20:51:14,870 INFO L87 Difference]: Start difference. First operand 28885 states and 40624 transitions. Second operand has 16 states, 16 states have (on average 23.3125) internal successors, (373), 7 states have internal predecessors, (373), 5 states have call successors, (105), 11 states have call predecessors, (105), 2 states have return successors, (75), 5 states have call predecessors, (75), 5 states have call successors, (75) [2022-12-13 20:51:21,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:23,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:25,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:27,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:29,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:31,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:33,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:35,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:37,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:39,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:41,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:43,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:45,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:51:53,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:51:53,765 INFO L93 Difference]: Finished difference Result 69268 states and 110891 transitions. [2022-12-13 20:51:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-13 20:51:53,766 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 23.3125) internal successors, (373), 7 states have internal predecessors, (373), 5 states have call successors, (105), 11 states have call predecessors, (105), 2 states have return successors, (75), 5 states have call predecessors, (75), 5 states have call successors, (75) Word has length 435 [2022-12-13 20:51:53,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:51:53,916 INFO L225 Difference]: With dead ends: 69268 [2022-12-13 20:51:53,917 INFO L226 Difference]: Without dead ends: 40527 [2022-12-13 20:51:53,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1003 GetRequests, 976 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2022-12-13 20:51:53,995 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 3017 mSDsluCounter, 2608 mSDsCounter, 0 mSdLazyCounter, 3002 mSolverCounterSat, 2248 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3135 SdHoareTripleChecker+Valid, 3495 SdHoareTripleChecker+Invalid, 5263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2248 IncrementalHoareTripleChecker+Valid, 3002 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2022-12-13 20:51:53,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3135 Valid, 3495 Invalid, 5263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2248 Valid, 3002 Invalid, 13 Unknown, 0 Unchecked, 32.8s Time] [2022-12-13 20:51:54,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40527 states. [2022-12-13 20:51:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40527 to 30212. [2022-12-13 20:51:58,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30212 states, 21944 states have (on average 1.220105723660226) internal successors, (26774), 22353 states have internal predecessors, (26774), 6084 states have call successors, (6084), 1488 states have call predecessors, (6084), 2183 states have return successors, (10173), 6537 states have call predecessors, (10173), 6083 states have call successors, (10173) [2022-12-13 20:51:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30212 states to 30212 states and 43031 transitions. [2022-12-13 20:51:58,118 INFO L78 Accepts]: Start accepts. Automaton has 30212 states and 43031 transitions. Word has length 435 [2022-12-13 20:51:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:51:58,118 INFO L495 AbstractCegarLoop]: Abstraction has 30212 states and 43031 transitions. [2022-12-13 20:51:58,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 23.3125) internal successors, (373), 7 states have internal predecessors, (373), 5 states have call successors, (105), 11 states have call predecessors, (105), 2 states have return successors, (75), 5 states have call predecessors, (75), 5 states have call successors, (75) [2022-12-13 20:51:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 30212 states and 43031 transitions. [2022-12-13 20:51:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-12-13 20:51:58,129 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:51:58,130 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:51:58,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 20:51:58,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:51:58,332 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:51:58,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:51:58,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1292663470, now seen corresponding path program 2 times [2022-12-13 20:51:58,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:51:58,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73472896] [2022-12-13 20:51:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:51:58,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:51:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:51:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:51:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:51:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:51:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:51:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:51:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:51:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:51:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:51:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:51:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:51:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:51:58,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:51:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:51:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:51:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:51:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:51:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:58,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-12-13 20:51:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:59,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:51:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:51:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:51:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:51:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:51:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:51:59,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:51:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:51:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:51:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:51:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:51:59,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:51:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:51:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:51:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 20:51:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:51:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:59,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:51:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 20:51:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:51:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 20:51:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 20:51:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:51:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:51:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:51:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:51:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:51:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:51:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:51:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-12-13 20:51:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:51:59,694 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-12-13 20:51:59,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:51:59,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73472896] [2022-12-13 20:51:59,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73472896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:51:59,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:51:59,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:51:59,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368397384] [2022-12-13 20:51:59,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:51:59,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:51:59,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:51:59,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:51:59,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:51:59,696 INFO L87 Difference]: Start difference. First operand 30212 states and 43031 transitions. Second operand has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-13 20:52:07,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:52:15,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:52:15,904 INFO L93 Difference]: Finished difference Result 70257 states and 112275 transitions. [2022-12-13 20:52:15,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:52:15,906 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 456 [2022-12-13 20:52:15,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:52:16,054 INFO L225 Difference]: With dead ends: 70257 [2022-12-13 20:52:16,055 INFO L226 Difference]: Without dead ends: 40189 [2022-12-13 20:52:16,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-12-13 20:52:16,136 INFO L413 NwaCegarLoop]: 887 mSDtfsCounter, 2658 mSDsluCounter, 3447 mSDsCounter, 0 mSdLazyCounter, 4024 mSolverCounterSat, 2039 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2797 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 6064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2039 IncrementalHoareTripleChecker+Valid, 4024 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:52:16,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2797 Valid, 4334 Invalid, 6064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2039 Valid, 4024 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-12-13 20:52:16,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40189 states. [2022-12-13 20:52:20,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40189 to 30200. [2022-12-13 20:52:20,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30200 states, 21938 states have (on average 1.2198924241042939) internal successors, (26762), 22347 states have internal predecessors, (26762), 6078 states have call successors, (6078), 1488 states have call predecessors, (6078), 2183 states have return successors, (10167), 6531 states have call predecessors, (10167), 6077 states have call successors, (10167) [2022-12-13 20:52:20,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30200 states to 30200 states and 43007 transitions. [2022-12-13 20:52:20,283 INFO L78 Accepts]: Start accepts. Automaton has 30200 states and 43007 transitions. Word has length 456 [2022-12-13 20:52:20,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:52:20,283 INFO L495 AbstractCegarLoop]: Abstraction has 30200 states and 43007 transitions. [2022-12-13 20:52:20,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-13 20:52:20,284 INFO L276 IsEmpty]: Start isEmpty. Operand 30200 states and 43007 transitions. [2022-12-13 20:52:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-12-13 20:52:20,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:52:20,295 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:20,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-12-13 20:52:20,295 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:52:20,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:20,295 INFO L85 PathProgramCache]: Analyzing trace with hash 583152402, now seen corresponding path program 1 times [2022-12-13 20:52:20,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:20,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996775965] [2022-12-13 20:52:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:20,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:52:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:52:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:52:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:52:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:52:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:52:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:52:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:52:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:52:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:52:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:52:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:52:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:52:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:52:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:52:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:52:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:52:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:52:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:20,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-12-13 20:52:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:52:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:52:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:52:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:52:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:52:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:52:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:52:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:52:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:52:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:52:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:52:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:52:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:52:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:52:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:52:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 20:52:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:52:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:52:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:52:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 20:52:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:52:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 20:52:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 20:52:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:52:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:52:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:52:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:52:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:52:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-12-13 20:52:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-12-13 20:52:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:21,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996775965] [2022-12-13 20:52:21,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996775965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:21,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:21,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:52:21,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737307101] [2022-12-13 20:52:21,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:21,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:21,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:21,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:21,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:21,668 INFO L87 Difference]: Start difference. First operand 30200 states and 43007 transitions. Second operand has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-13 20:52:29,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:52:38,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:52:38,852 INFO L93 Difference]: Finished difference Result 70233 states and 112221 transitions. [2022-12-13 20:52:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:52:38,853 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 456 [2022-12-13 20:52:38,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:52:38,999 INFO L225 Difference]: With dead ends: 70233 [2022-12-13 20:52:38,999 INFO L226 Difference]: Without dead ends: 40177 [2022-12-13 20:52:39,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-12-13 20:52:39,078 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 2839 mSDsluCounter, 3905 mSDsCounter, 0 mSdLazyCounter, 4497 mSolverCounterSat, 2351 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2974 SdHoareTripleChecker+Valid, 4786 SdHoareTripleChecker+Invalid, 6849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2351 IncrementalHoareTripleChecker+Valid, 4497 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:52:39,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2974 Valid, 4786 Invalid, 6849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2351 Valid, 4497 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-12-13 20:52:39,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40177 states. [2022-12-13 20:52:43,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40177 to 30188. [2022-12-13 20:52:43,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30188 states, 21932 states have (on average 1.219679007842422) internal successors, (26750), 22341 states have internal predecessors, (26750), 6072 states have call successors, (6072), 1488 states have call predecessors, (6072), 2183 states have return successors, (10161), 6525 states have call predecessors, (10161), 6071 states have call successors, (10161) [2022-12-13 20:52:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30188 states to 30188 states and 42983 transitions. [2022-12-13 20:52:43,300 INFO L78 Accepts]: Start accepts. Automaton has 30188 states and 42983 transitions. Word has length 456 [2022-12-13 20:52:43,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:52:43,301 INFO L495 AbstractCegarLoop]: Abstraction has 30188 states and 42983 transitions. [2022-12-13 20:52:43,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-13 20:52:43,301 INFO L276 IsEmpty]: Start isEmpty. Operand 30188 states and 42983 transitions. [2022-12-13 20:52:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-12-13 20:52:43,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:52:43,312 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:43,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-12-13 20:52:43,313 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:52:43,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:43,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1243280046, now seen corresponding path program 1 times [2022-12-13 20:52:43,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:43,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022721181] [2022-12-13 20:52:43,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:43,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:43,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:52:43,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:52:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:52:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:52:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:52:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:52:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:52:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:52:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:52:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:52:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:52:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:52:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:52:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:52:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:52:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:52:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:52:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:52:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:43,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-12-13 20:52:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:52:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:52:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:52:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:52:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:52:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:52:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:52:44,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:52:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:52:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:52:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:52:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:52:44,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:52:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:52:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:52:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 20:52:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:52:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:52:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:52:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 20:52:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:52:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 20:52:44,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 20:52:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:52:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:52:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:52:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:52:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:52:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:52:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:52:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-12-13 20:52:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:52:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-12-13 20:52:44,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:52:44,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022721181] [2022-12-13 20:52:44,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022721181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:52:44,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:52:44,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 20:52:44,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102545832] [2022-12-13 20:52:44,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:52:44,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 20:52:44,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:52:44,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 20:52:44,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-13 20:52:44,821 INFO L87 Difference]: Start difference. First operand 30188 states and 42983 transitions. Second operand has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-13 20:52:51,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:00,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:53:00,109 INFO L93 Difference]: Finished difference Result 70209 states and 112167 transitions. [2022-12-13 20:53:00,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 20:53:00,111 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 456 [2022-12-13 20:53:00,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:53:00,268 INFO L225 Difference]: With dead ends: 70209 [2022-12-13 20:53:00,269 INFO L226 Difference]: Without dead ends: 40165 [2022-12-13 20:53:00,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2022-12-13 20:53:00,357 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 2645 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 1779 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2776 SdHoareTripleChecker+Valid, 3620 SdHoareTripleChecker+Invalid, 4886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1779 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-13 20:53:00,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2776 Valid, 3620 Invalid, 4886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1779 Valid, 3106 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-12-13 20:53:00,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40165 states. [2022-12-13 20:53:04,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40165 to 30176. [2022-12-13 20:53:04,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30176 states, 21926 states have (on average 1.2194654747788014) internal successors, (26738), 22335 states have internal predecessors, (26738), 6066 states have call successors, (6066), 1488 states have call predecessors, (6066), 2183 states have return successors, (10155), 6519 states have call predecessors, (10155), 6065 states have call successors, (10155) [2022-12-13 20:53:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30176 states to 30176 states and 42959 transitions. [2022-12-13 20:53:04,646 INFO L78 Accepts]: Start accepts. Automaton has 30176 states and 42959 transitions. Word has length 456 [2022-12-13 20:53:04,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:53:04,646 INFO L495 AbstractCegarLoop]: Abstraction has 30176 states and 42959 transitions. [2022-12-13 20:53:04,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.0) internal successors, (240), 3 states have internal predecessors, (240), 2 states have call successors, (50), 11 states have call predecessors, (50), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-13 20:53:04,647 INFO L276 IsEmpty]: Start isEmpty. Operand 30176 states and 42959 transitions. [2022-12-13 20:53:04,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2022-12-13 20:53:04,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:53:04,658 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:53:04,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-12-13 20:53:04,658 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:53:04,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:53:04,658 INFO L85 PathProgramCache]: Analyzing trace with hash 678931218, now seen corresponding path program 1 times [2022-12-13 20:53:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:53:04,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046903400] [2022-12-13 20:53:04,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:04,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:53:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:53:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:06,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:53:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:53:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:06,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:53:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:06,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:53:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:53:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:06,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:53:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:06,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:53:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:53:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:53:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:53:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:53:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:53:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:53:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:53:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:53:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:53:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:53:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:53:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:53:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:53:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:53:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:53:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:53:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-12-13 20:53:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:53:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:53:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:53:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:53:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:53:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:53:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:53:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:53:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:53:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:53:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:53:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:53:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:53:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:53:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:53:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:53:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 20:53:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 20:53:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:07,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:53:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:53:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:53:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 20:53:08,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 20:53:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 20:53:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 20:53:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:53:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:53:08,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 20:53:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:53:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 20:53:08,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 20:53:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 20:53:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-12-13 20:53:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:08,389 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2022-12-13 20:53:08,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:53:08,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046903400] [2022-12-13 20:53:08,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046903400] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:53:08,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203226606] [2022-12-13 20:53:08,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:53:08,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:53:08,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:53:08,391 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:53:08,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 20:53:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:53:09,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 4428 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 20:53:09,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:53:09,846 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-12-13 20:53:09,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:53:10,327 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-12-13 20:53:10,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203226606] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:53:10,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:53:10,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7, 5] total 21 [2022-12-13 20:53:10,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532232108] [2022-12-13 20:53:10,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:53:10,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-13 20:53:10,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:53:10,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-13 20:53:10,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-12-13 20:53:10,331 INFO L87 Difference]: Start difference. First operand 30176 states and 42959 transitions. Second operand has 21 states, 21 states have (on average 18.80952380952381) internal successors, (395), 13 states have internal predecessors, (395), 7 states have call successors, (98), 11 states have call predecessors, (98), 6 states have return successors, (83), 4 states have call predecessors, (83), 7 states have call successors, (83) [2022-12-13 20:53:24,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:26,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:28,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:30,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:32,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:34,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:36,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:38,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:40,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:42,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:44,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:46,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:53:53,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:54:04,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:54:04,091 INFO L93 Difference]: Finished difference Result 70582 states and 115185 transitions. [2022-12-13 20:54:04,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-12-13 20:54:04,091 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 18.80952380952381) internal successors, (395), 13 states have internal predecessors, (395), 7 states have call successors, (98), 11 states have call predecessors, (98), 6 states have return successors, (83), 4 states have call predecessors, (83), 7 states have call successors, (83) Word has length 456 [2022-12-13 20:54:04,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:54:04,275 INFO L225 Difference]: With dead ends: 70582 [2022-12-13 20:54:04,275 INFO L226 Difference]: Without dead ends: 40432 [2022-12-13 20:54:04,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1090 GetRequests, 1032 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=608, Invalid=2698, Unknown=0, NotChecked=0, Total=3306 [2022-12-13 20:54:04,370 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 5834 mSDsluCounter, 9631 mSDsCounter, 0 mSdLazyCounter, 13784 mSolverCounterSat, 3515 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5973 SdHoareTripleChecker+Valid, 10534 SdHoareTripleChecker+Invalid, 17312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3515 IncrementalHoareTripleChecker+Valid, 13784 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.9s IncrementalHoareTripleChecker+Time [2022-12-13 20:54:04,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5973 Valid, 10534 Invalid, 17312 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3515 Valid, 13784 Invalid, 13 Unknown, 0 Unchecked, 45.9s Time] [2022-12-13 20:54:04,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40432 states. [2022-12-13 20:54:08,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40432 to 30309. [2022-12-13 20:54:08,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30309 states, 21987 states have (on average 1.214990676308728) internal successors, (26714), 22367 states have internal predecessors, (26714), 6024 states have call successors, (6024), 1488 states have call predecessors, (6024), 2297 states have return successors, (9887), 6613 states have call predecessors, (9887), 6023 states have call successors, (9887) [2022-12-13 20:54:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30309 states to 30309 states and 42625 transitions. [2022-12-13 20:54:08,814 INFO L78 Accepts]: Start accepts. Automaton has 30309 states and 42625 transitions. Word has length 456 [2022-12-13 20:54:08,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:54:08,814 INFO L495 AbstractCegarLoop]: Abstraction has 30309 states and 42625 transitions. [2022-12-13 20:54:08,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 18.80952380952381) internal successors, (395), 13 states have internal predecessors, (395), 7 states have call successors, (98), 11 states have call predecessors, (98), 6 states have return successors, (83), 4 states have call predecessors, (83), 7 states have call successors, (83) [2022-12-13 20:54:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 30309 states and 42625 transitions. [2022-12-13 20:54:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-12-13 20:54:08,827 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:54:08,827 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:08,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 20:54:09,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:54:09,031 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:54:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:09,032 INFO L85 PathProgramCache]: Analyzing trace with hash 111538553, now seen corresponding path program 1 times [2022-12-13 20:54:09,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:09,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167784293] [2022-12-13 20:54:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:09,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:54:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:54:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:54:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:54:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:54:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:54:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:54:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:54:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:54:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:54:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:54:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:54:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:54:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:54:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:54:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:54:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:54:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:54:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:54:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 20:54:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:54:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 20:54:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:54:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 20:54:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:09,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:54:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 20:54:09,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:09,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:54:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-12-13 20:54:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-12-13 20:54:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-12-13 20:54:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-12-13 20:54:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-12-13 20:54:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-12-13 20:54:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-12-13 20:54:10,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-12-13 20:54:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-12-13 20:54:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2022-12-13 20:54:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:54:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:54:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:10,147 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2022-12-13 20:54:10,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:10,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167784293] [2022-12-13 20:54:10,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167784293] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:10,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:10,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 20:54:10,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552617147] [2022-12-13 20:54:10,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:10,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 20:54:10,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:10,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 20:54:10,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-13 20:54:10,148 INFO L87 Difference]: Start difference. First operand 30309 states and 42625 transitions. Second operand has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (41), 10 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-13 20:54:16,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:54:25,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:54:25,665 INFO L93 Difference]: Finished difference Result 72038 states and 113930 transitions. [2022-12-13 20:54:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 20:54:25,666 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (41), 10 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 475 [2022-12-13 20:54:25,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:54:25,851 INFO L225 Difference]: With dead ends: 72038 [2022-12-13 20:54:25,851 INFO L226 Difference]: Without dead ends: 41875 [2022-12-13 20:54:25,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2022-12-13 20:54:25,936 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 1587 mSDsluCounter, 3294 mSDsCounter, 0 mSdLazyCounter, 3261 mSolverCounterSat, 932 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 4194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 3261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-12-13 20:54:25,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 4251 Invalid, 4194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [932 Valid, 3261 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-12-13 20:54:25,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41875 states. [2022-12-13 20:54:30,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41875 to 30421. [2022-12-13 20:54:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30421 states, 22099 states have (on average 1.2139010814969002) internal successors, (26826), 22479 states have internal predecessors, (26826), 6024 states have call successors, (6024), 1488 states have call predecessors, (6024), 2297 states have return successors, (9887), 6613 states have call predecessors, (9887), 6023 states have call successors, (9887) [2022-12-13 20:54:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30421 states to 30421 states and 42737 transitions. [2022-12-13 20:54:30,994 INFO L78 Accepts]: Start accepts. Automaton has 30421 states and 42737 transitions. Word has length 475 [2022-12-13 20:54:30,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:54:30,994 INFO L495 AbstractCegarLoop]: Abstraction has 30421 states and 42737 transitions. [2022-12-13 20:54:30,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.09090909090909) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (41), 10 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-13 20:54:30,994 INFO L276 IsEmpty]: Start isEmpty. Operand 30421 states and 42737 transitions. [2022-12-13 20:54:31,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-12-13 20:54:31,007 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:54:31,007 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:31,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-12-13 20:54:31,007 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:54:31,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:31,008 INFO L85 PathProgramCache]: Analyzing trace with hash -883155145, now seen corresponding path program 1 times [2022-12-13 20:54:31,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:31,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730229637] [2022-12-13 20:54:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:31,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:31,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:54:31,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:31,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:54:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:31,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:54:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:31,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:54:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:31,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:54:31,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:31,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:54:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:31,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:54:31,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:54:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:54:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:54:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:54:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:54:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:54:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:54:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:54:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:54:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:54:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:54:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:54:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 20:54:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:54:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 20:54:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:54:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 20:54:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:54:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 20:54:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:54:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-12-13 20:54:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-12-13 20:54:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:54:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:54:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-12-13 20:54:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-12-13 20:54:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-12-13 20:54:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-12-13 20:54:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-12-13 20:54:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2022-12-13 20:54:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-12-13 20:54:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 443 [2022-12-13 20:54:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:54:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:54:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:54:32,453 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2022-12-13 20:54:32,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:54:32,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730229637] [2022-12-13 20:54:32,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730229637] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:54:32,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:54:32,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-12-13 20:54:32,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618792344] [2022-12-13 20:54:32,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:54:32,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 20:54:32,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:54:32,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 20:54:32,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-12-13 20:54:32,455 INFO L87 Difference]: Start difference. First operand 30421 states and 42737 transitions. Second operand has 17 states, 17 states have (on average 13.0) internal successors, (221), 8 states have internal predecessors, (221), 2 states have call successors, (41), 10 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-13 20:54:42,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:54:52,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:54:52,725 INFO L93 Difference]: Finished difference Result 69931 states and 110152 transitions. [2022-12-13 20:54:52,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:54:52,726 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 13.0) internal successors, (221), 8 states have internal predecessors, (221), 2 states have call successors, (41), 10 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) Word has length 475 [2022-12-13 20:54:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:54:52,907 INFO L225 Difference]: With dead ends: 69931 [2022-12-13 20:54:52,907 INFO L226 Difference]: Without dead ends: 39656 [2022-12-13 20:54:52,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2022-12-13 20:54:52,983 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 1427 mSDsluCounter, 8017 mSDsCounter, 0 mSdLazyCounter, 7159 mSolverCounterSat, 869 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 8915 SdHoareTripleChecker+Invalid, 8029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 869 IncrementalHoareTripleChecker+Valid, 7159 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-12-13 20:54:52,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 8915 Invalid, 8029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [869 Valid, 7159 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2022-12-13 20:54:53,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39656 states. [2022-12-13 20:54:57,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39656 to 30631. [2022-12-13 20:54:57,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30631 states, 22288 states have (on average 1.2120872218234027) internal successors, (27015), 22661 states have internal predecessors, (27015), 6024 states have call successors, (6024), 1488 states have call predecessors, (6024), 2318 states have return successors, (10120), 6641 states have call predecessors, (10120), 6023 states have call successors, (10120) [2022-12-13 20:54:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30631 states to 30631 states and 43159 transitions. [2022-12-13 20:54:57,490 INFO L78 Accepts]: Start accepts. Automaton has 30631 states and 43159 transitions. Word has length 475 [2022-12-13 20:54:57,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:54:57,491 INFO L495 AbstractCegarLoop]: Abstraction has 30631 states and 43159 transitions. [2022-12-13 20:54:57,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 13.0) internal successors, (221), 8 states have internal predecessors, (221), 2 states have call successors, (41), 10 states have call predecessors, (41), 3 states have return successors, (40), 3 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-13 20:54:57,491 INFO L276 IsEmpty]: Start isEmpty. Operand 30631 states and 43159 transitions. [2022-12-13 20:54:57,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2022-12-13 20:54:57,504 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:54:57,504 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:54:57,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-12-13 20:54:57,504 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:54:57,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:54:57,505 INFO L85 PathProgramCache]: Analyzing trace with hash 499006384, now seen corresponding path program 1 times [2022-12-13 20:54:57,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:54:57,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059607217] [2022-12-13 20:54:57,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:54:57,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:54:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:55:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:55:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:55:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:55:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:55:01,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:55:01,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:55:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:55:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:55:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:55:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:55:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:55:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:55:01,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:55:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:55:01,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:55:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:55:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:55:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:55:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 20:55:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:55:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 20:55:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:55:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-12-13 20:55:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:55:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-12-13 20:55:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:01,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:55:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-12-13 20:55:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-12-13 20:55:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:01,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:01,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-12-13 20:55:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:55:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-12-13 20:55:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-12-13 20:55:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-12-13 20:55:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-12-13 20:55:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-12-13 20:55:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-12-13 20:55:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2022-12-13 20:55:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2022-12-13 20:55:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:55:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:55:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2022-12-13 20:55:02,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:55:02,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059607217] [2022-12-13 20:55:02,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059607217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:55:02,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:55:02,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-12-13 20:55:02,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648782321] [2022-12-13 20:55:02,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:55:02,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 20:55:02,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:55:02,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 20:55:02,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2022-12-13 20:55:02,128 INFO L87 Difference]: Start difference. First operand 30631 states and 43159 transitions. Second operand has 22 states, 22 states have (on average 10.5) internal successors, (231), 11 states have internal predecessors, (231), 2 states have call successors, (43), 10 states have call predecessors, (43), 4 states have return successors, (43), 5 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-13 20:55:14,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:55:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:55:25,797 INFO L93 Difference]: Finished difference Result 71159 states and 112593 transitions. [2022-12-13 20:55:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-12-13 20:55:25,798 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.5) internal successors, (231), 11 states have internal predecessors, (231), 2 states have call successors, (43), 10 states have call predecessors, (43), 4 states have return successors, (43), 5 states have call predecessors, (43), 2 states have call successors, (43) Word has length 498 [2022-12-13 20:55:25,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:55:25,957 INFO L225 Difference]: With dead ends: 71159 [2022-12-13 20:55:25,957 INFO L226 Difference]: Without dead ends: 40559 [2022-12-13 20:55:26,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=268, Invalid=1624, Unknown=0, NotChecked=0, Total=1892 [2022-12-13 20:55:26,055 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 2409 mSDsluCounter, 11648 mSDsCounter, 0 mSdLazyCounter, 9890 mSolverCounterSat, 1791 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2506 SdHoareTripleChecker+Valid, 12555 SdHoareTripleChecker+Invalid, 11682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1791 IncrementalHoareTripleChecker+Valid, 9890 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-12-13 20:55:26,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2506 Valid, 12555 Invalid, 11682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1791 Valid, 9890 Invalid, 1 Unknown, 0 Unchecked, 16.4s Time] [2022-12-13 20:55:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40559 states. [2022-12-13 20:55:30,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40559 to 30729. [2022-12-13 20:55:30,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30729 states, 22372 states have (on average 1.2112908993384588) internal successors, (27099), 22724 states have internal predecessors, (27099), 6024 states have call successors, (6024), 1488 states have call predecessors, (6024), 2332 states have return successors, (10146), 6676 states have call predecessors, (10146), 6023 states have call successors, (10146) [2022-12-13 20:55:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30729 states to 30729 states and 43269 transitions. [2022-12-13 20:55:30,662 INFO L78 Accepts]: Start accepts. Automaton has 30729 states and 43269 transitions. Word has length 498 [2022-12-13 20:55:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:55:30,662 INFO L495 AbstractCegarLoop]: Abstraction has 30729 states and 43269 transitions. [2022-12-13 20:55:30,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.5) internal successors, (231), 11 states have internal predecessors, (231), 2 states have call successors, (43), 10 states have call predecessors, (43), 4 states have return successors, (43), 5 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-13 20:55:30,662 INFO L276 IsEmpty]: Start isEmpty. Operand 30729 states and 43269 transitions. [2022-12-13 20:55:30,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2022-12-13 20:55:30,677 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:55:30,677 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:55:30,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-12-13 20:55:30,677 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:55:30,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:55:30,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1829135747, now seen corresponding path program 1 times [2022-12-13 20:55:30,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:55:30,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083041800] [2022-12-13 20:55:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:55:30,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:55:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:55:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:55:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:55:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:55:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:55:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:55:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:55:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:55:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:55:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:55:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:55:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:55:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:55:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:55:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:55:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:55:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:55:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:55:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:55:31,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 20:55:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:55:31,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 20:55:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:55:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-12-13 20:55:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:55:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-12-13 20:55:31,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:55:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-12-13 20:55:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2022-12-13 20:55:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:55:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:55:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-12-13 20:55:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-12-13 20:55:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2022-12-13 20:55:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-12-13 20:55:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-12-13 20:55:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-12-13 20:55:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-12-13 20:55:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-12-13 20:55:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 392 [2022-12-13 20:55:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-12-13 20:55:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:55:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:55:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2022-12-13 20:55:31,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:55:31,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083041800] [2022-12-13 20:55:31,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083041800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:55:31,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:55:31,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 20:55:31,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655917042] [2022-12-13 20:55:31,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:55:31,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 20:55:31,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:55:31,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 20:55:31,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-12-13 20:55:31,942 INFO L87 Difference]: Start difference. First operand 30729 states and 43269 transitions. Second operand has 14 states, 14 states have (on average 17.357142857142858) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (44), 10 states have call predecessors, (44), 3 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-13 20:55:38,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 20:55:48,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:55:48,093 INFO L93 Difference]: Finished difference Result 70511 states and 111112 transitions. [2022-12-13 20:55:48,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 20:55:48,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.357142857142858) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (44), 10 states have call predecessors, (44), 3 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) Word has length 511 [2022-12-13 20:55:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:55:48,243 INFO L225 Difference]: With dead ends: 70511 [2022-12-13 20:55:48,243 INFO L226 Difference]: Without dead ends: 39936 [2022-12-13 20:55:48,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=129, Invalid=471, Unknown=0, NotChecked=0, Total=600 [2022-12-13 20:55:48,328 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 2968 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 4254 mSolverCounterSat, 2171 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 5502 SdHoareTripleChecker+Invalid, 6426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2171 IncrementalHoareTripleChecker+Valid, 4254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-13 20:55:48,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 5502 Invalid, 6426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2171 Valid, 4254 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-12-13 20:55:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39936 states. [2022-12-13 20:55:52,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39936 to 30729. [2022-12-13 20:55:52,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30729 states, 22372 states have (on average 1.2112908993384588) internal successors, (27099), 22724 states have internal predecessors, (27099), 6024 states have call successors, (6024), 1488 states have call predecessors, (6024), 2332 states have return successors, (10146), 6676 states have call predecessors, (10146), 6023 states have call successors, (10146) [2022-12-13 20:55:52,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30729 states to 30729 states and 43269 transitions. [2022-12-13 20:55:52,925 INFO L78 Accepts]: Start accepts. Automaton has 30729 states and 43269 transitions. Word has length 511 [2022-12-13 20:55:52,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:55:52,925 INFO L495 AbstractCegarLoop]: Abstraction has 30729 states and 43269 transitions. [2022-12-13 20:55:52,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.357142857142858) internal successors, (243), 5 states have internal predecessors, (243), 3 states have call successors, (44), 10 states have call predecessors, (44), 3 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-13 20:55:52,925 INFO L276 IsEmpty]: Start isEmpty. Operand 30729 states and 43269 transitions. [2022-12-13 20:55:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-12-13 20:55:52,940 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:55:52,941 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:55:52,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-12-13 20:55:52,941 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:55:52,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:55:52,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1720035970, now seen corresponding path program 1 times [2022-12-13 20:55:52,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:55:52,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750272557] [2022-12-13 20:55:52,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:55:52,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:55:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:55:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 20:55:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 20:55:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 20:55:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:57,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:55:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-12-13 20:55:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:57,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:55:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:55:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:55:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:56:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:56:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:56:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:56:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-12-13 20:56:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 20:56:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 20:56:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 20:56:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 20:56:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 20:56:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 20:56:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 20:56:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 20:56:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 20:56:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 20:56:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 20:56:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-12-13 20:56:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:56:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:56:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-12-13 20:56:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:56:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:56:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-12-13 20:56:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:56:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:56:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-12-13 20:56:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-12-13 20:56:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:56:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-12-13 20:56:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:56:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 20:56:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-12-13 20:56:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-12-13 20:56:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-12-13 20:56:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-12-13 20:56:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-12-13 20:56:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 20:56:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 20:56:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-12-13 20:56:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 20:56:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 20:56:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-12-13 20:56:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 20:56:00,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2022-12-13 20:56:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 20:56:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 20:56:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 16 proven. 40 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2022-12-13 20:56:00,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:56:00,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750272557] [2022-12-13 20:56:00,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750272557] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:56:00,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403226739] [2022-12-13 20:56:00,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:56:00,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:56:00,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:56:00,877 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:56:00,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be66894b-25d9-4ea6-a32d-e298d280172b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 20:56:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:56:03,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 5080 conjuncts, 44 conjunts are in the unsatisfiable core [2022-12-13 20:56:03,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:56:03,689 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 17 proven. 60 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2022-12-13 20:56:03,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:56:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 32 proven. 27 refuted. 0 times theorem prover too weak. 802 trivial. 0 not checked. [2022-12-13 20:56:04,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403226739] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:56:04,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:56:04,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10, 9] total 28 [2022-12-13 20:56:04,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322037060] [2022-12-13 20:56:04,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:56:04,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-12-13 20:56:04,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:56:04,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-12-13 20:56:04,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2022-12-13 20:56:04,679 INFO L87 Difference]: Start difference. First operand 30729 states and 43269 transitions. Second operand has 28 states, 28 states have (on average 13.428571428571429) internal successors, (376), 17 states have internal predecessors, (376), 8 states have call successors, (98), 14 states have call predecessors, (98), 8 states have return successors, (83), 10 states have call predecessors, (83), 8 states have call successors, (83) [2022-12-13 20:56:17,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []