./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 637058e9c434875c2a607ff053c6fcb810c5a78083685ed0943116abd98a4161 --- 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 [2022-12-14 05:32:33,485 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:32:33,487 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:32:33,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:32:33,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:32:33,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:32:33,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:32:33,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:32:33,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:32:33,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:32:33,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:32:33,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:32:33,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:32:33,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:32:33,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:32:33,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:32:33,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:32:33,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:32:33,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:32:33,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:32:33,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:32:33,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:32:33,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:32:33,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:32:33,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:32:33,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:32:33,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:32:33,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:32:33,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:32:33,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:32:33,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:32:33,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:32:33,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:32:33,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:32:33,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:32:33,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:32:33,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:32:33,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:32:33,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:32:33,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:32:33,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:32:33,531 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 05:32:33,547 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:32:33,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:32:33,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:32:33,547 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:32:33,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:32:33,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:32:33,548 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:32:33,548 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:32:33,548 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:32:33,548 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:32:33,549 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:32:33,549 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:32:33,549 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:32:33,549 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:32:33,549 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:32:33,549 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:32:33,549 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:32:33,549 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:32:33,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:32:33,550 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:32:33,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:32:33,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:32:33,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:32:33,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:32:33,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:32:33,551 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:32:33,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:32:33,551 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:32:33,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:32:33,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:32:33,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:32:33,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:32:33,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:32:33,552 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:32:33,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:32:33,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:32:33,552 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:32:33,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:32:33,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:32:33,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:32:33,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637058e9c434875c2a607ff053c6fcb810c5a78083685ed0943116abd98a4161 [2022-12-14 05:32:33,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:32:33,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:32:33,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:32:33,737 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:32:33,737 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:32:33,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-12-14 05:32:36,257 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:32:36,641 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:32:36,642 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-12-14 05:32:36,666 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/data/e5b249212/80e17dc82d7745b694abdc14b996aa34/FLAGcc0c6a534 [2022-12-14 05:32:36,835 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/data/e5b249212/80e17dc82d7745b694abdc14b996aa34 [2022-12-14 05:32:36,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:32:36,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:32:36,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:32:36,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:32:36,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:32:36,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:32:36" (1/1) ... [2022-12-14 05:32:36,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7fe335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:36, skipping insertion in model container [2022-12-14 05:32:36,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:32:36" (1/1) ... [2022-12-14 05:32:36,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:32:36,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:32:37,437 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 05:32:37,443 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 05:32:37,525 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 05:32:37,531 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:32:37,532 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 05:32:37,576 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 05:32:37,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,586 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,587 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,588 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 05:32:37,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,591 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,611 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,613 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,615 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 05:32:37,642 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,644 WARN L623 FunctionHandler]: Unknown extern function flexcop_pass_dmx_packets [2022-12-14 05:32:37,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,646 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,646 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,652 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,654 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 05:32:37,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,661 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 05:32:37,661 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:32:37,666 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,668 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:32:37,669 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,672 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 05:32:37,672 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,673 WARN L623 FunctionHandler]: Unknown extern function flexcop_sram_set_dest [2022-12-14 05:32:37,673 WARN L623 FunctionHandler]: Unknown extern function flexcop_wan_set_speed [2022-12-14 05:32:37,674 WARN L623 FunctionHandler]: Unknown extern function flexcop_sram_ctrl [2022-12-14 05:32:37,677 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-14 05:32:37,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,686 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kmalloc [2022-12-14 05:32:37,687 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,689 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_initialize [2022-12-14 05:32:37,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,690 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_exit [2022-12-14 05:32:37,690 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kfree [2022-12-14 05:32:37,693 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_exit [2022-12-14 05:32:37,694 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kfree [2022-12-14 05:32:37,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,716 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:32:37,717 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:32:37,718 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:32:37,718 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:32:37,719 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:32:37,720 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:32:37,720 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:32:37,721 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:32:37,721 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:32:37,725 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_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i[222523,222536] [2022-12-14 05:32:37,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:32:37,816 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:32:37,916 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 05:32:37,917 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 05:32:37,928 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 05:32:37,929 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:32:37,930 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 05:32:37,935 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 05:32:37,937 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,940 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,941 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,941 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 05:32:37,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,950 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,952 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 05:32:37,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,982 WARN L623 FunctionHandler]: Unknown extern function flexcop_pass_dmx_packets [2022-12-14 05:32:37,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,993 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,994 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,994 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,995 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 05:32:37,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,997 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 05:32:37,997 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:32:37,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:37,999 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:32:38,000 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,002 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,003 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 05:32:38,003 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,004 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,004 WARN L623 FunctionHandler]: Unknown extern function flexcop_sram_set_dest [2022-12-14 05:32:38,008 WARN L623 FunctionHandler]: Unknown extern function flexcop_wan_set_speed [2022-12-14 05:32:38,012 WARN L623 FunctionHandler]: Unknown extern function flexcop_sram_ctrl [2022-12-14 05:32:38,017 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-14 05:32:38,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,018 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,018 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,019 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kmalloc [2022-12-14 05:32:38,019 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,041 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_initialize [2022-12-14 05:32:38,041 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,042 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_exit [2022-12-14 05:32:38,042 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kfree [2022-12-14 05:32:38,043 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_exit [2022-12-14 05:32:38,046 WARN L623 FunctionHandler]: Unknown extern function flexcop_device_kfree [2022-12-14 05:32:38,051 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:32:38,055 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:32:38,055 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:32:38,055 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:32:38,056 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:32:38,056 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:32:38,057 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:32:38,057 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:32:38,058 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:32:38,058 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:32:38,059 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_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i[222523,222536] [2022-12-14 05:32:38,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:32:38,123 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:32:38,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38 WrapperNode [2022-12-14 05:32:38,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:32:38,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:32:38,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:32:38,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:32:38,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,220 INFO L138 Inliner]: procedures = 127, calls = 982, calls flagged for inlining = 54, calls inlined = 42, statements flattened = 886 [2022-12-14 05:32:38,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:32:38,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:32:38,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:32:38,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:32:38,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,287 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:32:38,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:32:38,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:32:38,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:32:38,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (1/1) ... [2022-12-14 05:32:38,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:32:38,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:32:38,338 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:32:38,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:32:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 05:32:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 05:32:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2022-12-14 05:32:38,383 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2022-12-14 05:32:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-14 05:32:38,383 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-14 05:32:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:32:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 05:32:38,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 05:32:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 05:32:38,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 05:32:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2022-12-14 05:32:38,384 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2022-12-14 05:32:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:32:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 05:32:38,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 05:32:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 05:32:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 05:32:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2022-12-14 05:32:38,385 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2022-12-14 05:32:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:32:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:32:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:32:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:32:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2022-12-14 05:32:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2022-12-14 05:32:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 05:32:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 05:32:38,386 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 05:32:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:32:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:32:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:32:38,707 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:32:38,709 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:32:40,018 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:32:40,363 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:32:40,364 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:32:40,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:32:40 BoogieIcfgContainer [2022-12-14 05:32:40,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:32:40,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:32:40,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:32:40,372 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:32:40,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:32:36" (1/3) ... [2022-12-14 05:32:40,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f680f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:32:40, skipping insertion in model container [2022-12-14 05:32:40,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:38" (2/3) ... [2022-12-14 05:32:40,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f680f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:32:40, skipping insertion in model container [2022-12-14 05:32:40,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:32:40" (3/3) ... [2022-12-14 05:32:40,374 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2022-12-14 05:32:40,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:32:40,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2022-12-14 05:32:40,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:32:40,450 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@7b533c88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:32:40,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-14 05:32:40,455 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 100 states have (on average 1.6) internal successors, (160), 130 states have internal predecessors, (160), 24 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-12-14 05:32:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 05:32:40,463 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:40,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:32:40,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:32:40,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:40,469 INFO L85 PathProgramCache]: Analyzing trace with hash -183998420, now seen corresponding path program 1 times [2022-12-14 05:32:40,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:40,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544507848] [2022-12-14 05:32:40,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:40,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:40,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:32:40,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:40,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544507848] [2022-12-14 05:32:40,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544507848] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:40,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:40,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:32:40,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930484345] [2022-12-14 05:32:40,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:40,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:32:40,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:40,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:32:40,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:40,890 INFO L87 Difference]: Start difference. First operand has 161 states, 100 states have (on average 1.6) internal successors, (160), 130 states have internal predecessors, (160), 24 states have call successors, (24), 11 states have call predecessors, (24), 11 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:32:42,963 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 [] [2022-12-14 05:32:43,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:43,095 INFO L93 Difference]: Finished difference Result 333 states and 447 transitions. [2022-12-14 05:32:43,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:32:43,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-14 05:32:43,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:43,105 INFO L225 Difference]: With dead ends: 333 [2022-12-14 05:32:43,106 INFO L226 Difference]: Without dead ends: 152 [2022-12-14 05:32:43,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:43,111 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 23 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:43,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 307 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 05:32:43,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-12-14 05:32:43,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-12-14 05:32:43,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 102 states have (on average 1.5294117647058822) internal successors, (156), 122 states have internal predecessors, (156), 21 states have call successors, (21), 10 states have call predecessors, (21), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-12-14 05:32:43,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2022-12-14 05:32:43,154 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 14 [2022-12-14 05:32:43,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:43,155 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2022-12-14 05:32:43,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:32:43,155 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2022-12-14 05:32:43,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 05:32:43,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:43,157 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:32:43,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:32:43,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:32:43,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:43,158 INFO L85 PathProgramCache]: Analyzing trace with hash 141290286, now seen corresponding path program 1 times [2022-12-14 05:32:43,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:43,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30018231] [2022-12-14 05:32:43,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:43,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:32:43,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:43,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30018231] [2022-12-14 05:32:43,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30018231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:43,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:43,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:32:43,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427505818] [2022-12-14 05:32:43,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:43,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:32:43,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:43,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:32:43,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:32:43,303 INFO L87 Difference]: Start difference. First operand 152 states and 198 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:32:45,354 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 [] [2022-12-14 05:32:45,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:45,555 INFO L93 Difference]: Finished difference Result 382 states and 499 transitions. [2022-12-14 05:32:45,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:32:45,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-12-14 05:32:45,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:45,559 INFO L225 Difference]: With dead ends: 382 [2022-12-14 05:32:45,559 INFO L226 Difference]: Without dead ends: 231 [2022-12-14 05:32:45,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:32:45,561 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 115 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:45,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 488 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 157 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 05:32:45,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-12-14 05:32:45,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 224. [2022-12-14 05:32:45,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 154 states have (on average 1.5) internal successors, (231), 175 states have internal predecessors, (231), 33 states have call successors, (33), 18 states have call predecessors, (33), 18 states have return successors, (33), 32 states have call predecessors, (33), 33 states have call successors, (33) [2022-12-14 05:32:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 297 transitions. [2022-12-14 05:32:45,588 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 297 transitions. Word has length 22 [2022-12-14 05:32:45,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:45,589 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 297 transitions. [2022-12-14 05:32:45,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:32:45,589 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 297 transitions. [2022-12-14 05:32:45,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 05:32:45,590 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:45,590 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:32:45,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:32:45,591 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:32:45,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:45,591 INFO L85 PathProgramCache]: Analyzing trace with hash 64857676, now seen corresponding path program 1 times [2022-12-14 05:32:45,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:45,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560960700] [2022-12-14 05:32:45,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:45,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:32:45,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:45,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560960700] [2022-12-14 05:32:45,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560960700] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:45,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:45,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:32:45,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012216087] [2022-12-14 05:32:45,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:45,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:32:45,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:45,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:32:45,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:45,714 INFO L87 Difference]: Start difference. First operand 224 states and 297 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:32:46,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:32:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:47,068 INFO L93 Difference]: Finished difference Result 443 states and 584 transitions. [2022-12-14 05:32:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:32:47,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-12-14 05:32:47,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:47,072 INFO L225 Difference]: With dead ends: 443 [2022-12-14 05:32:47,072 INFO L226 Difference]: Without dead ends: 220 [2022-12-14 05:32:47,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:47,074 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 152 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:47,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 226 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 05:32:47,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-12-14 05:32:47,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2022-12-14 05:32:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 152 states have (on average 1.486842105263158) internal successors, (226), 173 states have internal predecessors, (226), 28 states have call successors, (28), 19 states have call predecessors, (28), 19 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2022-12-14 05:32:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 282 transitions. [2022-12-14 05:32:47,097 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 282 transitions. Word has length 23 [2022-12-14 05:32:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:47,098 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 282 transitions. [2022-12-14 05:32:47,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 05:32:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 282 transitions. [2022-12-14 05:32:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 05:32:47,099 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:47,100 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:32:47,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:32:47,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:32:47,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:47,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2144621876, now seen corresponding path program 1 times [2022-12-14 05:32:47,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:47,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684689907] [2022-12-14 05:32:47,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:47,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:32:47,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:47,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684689907] [2022-12-14 05:32:47,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684689907] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:47,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:47,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:32:47,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804538415] [2022-12-14 05:32:47,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:47,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:32:47,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:47,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:32:47,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:47,328 INFO L87 Difference]: Start difference. First operand 218 states and 282 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:32:48,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:32:50,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:32:50,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:50,411 INFO L93 Difference]: Finished difference Result 374 states and 484 transitions. [2022-12-14 05:32:50,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:32:50,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-12-14 05:32:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:50,414 INFO L225 Difference]: With dead ends: 374 [2022-12-14 05:32:50,414 INFO L226 Difference]: Without dead ends: 372 [2022-12-14 05:32:50,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:50,415 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 136 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:50,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 305 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-12-14 05:32:50,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2022-12-14 05:32:50,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 357. [2022-12-14 05:32:50,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 263 states have (on average 1.4904942965779469) internal successors, (392), 287 states have internal predecessors, (392), 45 states have call successors, (45), 30 states have call predecessors, (45), 30 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 05:32:50,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 482 transitions. [2022-12-14 05:32:50,438 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 482 transitions. Word has length 29 [2022-12-14 05:32:50,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:50,438 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 482 transitions. [2022-12-14 05:32:50,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 05:32:50,439 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 482 transitions. [2022-12-14 05:32:50,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-12-14 05:32:50,440 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:50,440 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:32:50,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:32:50,441 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:32:50,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:50,441 INFO L85 PathProgramCache]: Analyzing trace with hash 655133349, now seen corresponding path program 1 times [2022-12-14 05:32:50,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:50,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788241348] [2022-12-14 05:32:50,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:50,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:50,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:32:50,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:50,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788241348] [2022-12-14 05:32:50,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788241348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:50,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:50,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:32:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989206160] [2022-12-14 05:32:50,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:50,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:32:50,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:50,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:32:50,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:32:50,612 INFO L87 Difference]: Start difference. First operand 357 states and 482 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 05:32:52,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:32:53,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:32:55,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:32:58,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:32:58,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:58,192 INFO L93 Difference]: Finished difference Result 826 states and 1136 transitions. [2022-12-14 05:32:58,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:32:58,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2022-12-14 05:32:58,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:58,196 INFO L225 Difference]: With dead ends: 826 [2022-12-14 05:32:58,196 INFO L226 Difference]: Without dead ends: 479 [2022-12-14 05:32:58,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:32:58,197 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 112 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:58,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 469 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 05:32:58,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-12-14 05:32:58,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 361. [2022-12-14 05:32:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 267 states have (on average 1.4831460674157304) internal successors, (396), 291 states have internal predecessors, (396), 45 states have call successors, (45), 30 states have call predecessors, (45), 30 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 05:32:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 486 transitions. [2022-12-14 05:32:58,219 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 486 transitions. Word has length 40 [2022-12-14 05:32:58,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:58,219 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 486 transitions. [2022-12-14 05:32:58,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 05:32:58,220 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 486 transitions. [2022-12-14 05:32:58,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 05:32:58,221 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:58,221 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:32:58,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:32:58,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:32:58,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:58,222 INFO L85 PathProgramCache]: Analyzing trace with hash 829320130, now seen corresponding path program 1 times [2022-12-14 05:32:58,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:58,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545379229] [2022-12-14 05:32:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:58,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:58,410 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 05:32:58,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:58,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545379229] [2022-12-14 05:32:58,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545379229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:58,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:58,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:32:58,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628196967] [2022-12-14 05:32:58,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:58,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:32:58,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:58,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:32:58,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:58,412 INFO L87 Difference]: Start difference. First operand 361 states and 486 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:33:00,447 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 [] [2022-12-14 05:33:00,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:33:00,545 INFO L93 Difference]: Finished difference Result 721 states and 977 transitions. [2022-12-14 05:33:00,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:33:00,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2022-12-14 05:33:00,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:33:00,548 INFO L225 Difference]: With dead ends: 721 [2022-12-14 05:33:00,548 INFO L226 Difference]: Without dead ends: 370 [2022-12-14 05:33:00,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:33:00,550 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:33:00,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 05:33:00,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-12-14 05:33:00,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2022-12-14 05:33:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 276 states have (on average 1.4673913043478262) internal successors, (405), 300 states have internal predecessors, (405), 45 states have call successors, (45), 30 states have call predecessors, (45), 30 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2022-12-14 05:33:00,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 495 transitions. [2022-12-14 05:33:00,568 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 495 transitions. Word has length 44 [2022-12-14 05:33:00,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:33:00,569 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 495 transitions. [2022-12-14 05:33:00,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 05:33:00,569 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 495 transitions. [2022-12-14 05:33:00,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-14 05:33:00,570 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:33:00,570 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:33:00,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:33:00,570 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:33:00,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:33:00,571 INFO L85 PathProgramCache]: Analyzing trace with hash -487087290, now seen corresponding path program 1 times [2022-12-14 05:33:00,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:33:00,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286196841] [2022-12-14 05:33:00,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:33:00,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:33:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:33:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:33:00,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:33:00,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286196841] [2022-12-14 05:33:00,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286196841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:33:00,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:33:00,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:33:00,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796507849] [2022-12-14 05:33:00,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:33:00,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:33:00,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:33:00,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:33:00,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:33:00,739 INFO L87 Difference]: Start difference. First operand 370 states and 495 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 05:33:02,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:04,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:05,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:33:05,515 INFO L93 Difference]: Finished difference Result 940 states and 1300 transitions. [2022-12-14 05:33:05,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:33:05,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2022-12-14 05:33:05,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:33:05,517 INFO L225 Difference]: With dead ends: 940 [2022-12-14 05:33:05,517 INFO L226 Difference]: Without dead ends: 580 [2022-12-14 05:33:05,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:33:05,518 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 92 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:33:05,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 360 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-12-14 05:33:05,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-12-14 05:33:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 420. [2022-12-14 05:33:05,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 320 states have (on average 1.459375) internal successors, (467), 344 states have internal predecessors, (467), 51 states have call successors, (51), 30 states have call predecessors, (51), 30 states have return successors, (51), 49 states have call predecessors, (51), 51 states have call successors, (51) [2022-12-14 05:33:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 569 transitions. [2022-12-14 05:33:05,540 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 569 transitions. Word has length 46 [2022-12-14 05:33:05,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:33:05,540 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 569 transitions. [2022-12-14 05:33:05,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 05:33:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 569 transitions. [2022-12-14 05:33:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 05:33:05,542 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:33:05,542 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-12-14 05:33:05,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 05:33:05,542 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:33:05,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:33:05,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1624204118, now seen corresponding path program 1 times [2022-12-14 05:33:05,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:33:05,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63760720] [2022-12-14 05:33:05,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:33:05,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:33:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:33:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-14 05:33:05,729 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:33:05,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63760720] [2022-12-14 05:33:05,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63760720] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:33:05,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294466161] [2022-12-14 05:33:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:33:05,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:33:05,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:33:05,731 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:33:05,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:33:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:33:05,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:33:05,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:33:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:33:06,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:33:06,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294466161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:33:06,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:33:06,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [3] total 8 [2022-12-14 05:33:06,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581051437] [2022-12-14 05:33:06,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:33:06,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:33:06,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:33:06,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:33:06,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:33:06,053 INFO L87 Difference]: Start difference. First operand 420 states and 569 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:33:07,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:08,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:12,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:14,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:17,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:19,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:21,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:23,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:33:25,559 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 [] [2022-12-14 05:33:25,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:33:25,643 INFO L93 Difference]: Finished difference Result 1017 states and 1369 transitions. [2022-12-14 05:33:25,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 05:33:25,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47 [2022-12-14 05:33:25,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:33:25,647 INFO L225 Difference]: With dead ends: 1017 [2022-12-14 05:33:25,647 INFO L226 Difference]: Without dead ends: 765 [2022-12-14 05:33:25,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2022-12-14 05:33:25,648 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 260 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2022-12-14 05:33:25,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1150 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 390 Invalid, 6 Unknown, 0 Unchecked, 19.5s Time] [2022-12-14 05:33:25,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-12-14 05:33:25,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 428. [2022-12-14 05:33:25,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 326 states have (on average 1.450920245398773) internal successors, (473), 350 states have internal predecessors, (473), 53 states have call successors, (53), 30 states have call predecessors, (53), 30 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 05:33:25,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 579 transitions. [2022-12-14 05:33:25,671 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 579 transitions. Word has length 47 [2022-12-14 05:33:25,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:33:25,672 INFO L495 AbstractCegarLoop]: Abstraction has 428 states and 579 transitions. [2022-12-14 05:33:25,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:33:25,672 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 579 transitions. [2022-12-14 05:33:25,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 05:33:25,673 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:33:25,673 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:33:25,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:33:25,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 05:33:25,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:33:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:33:25,877 INFO L85 PathProgramCache]: Analyzing trace with hash -224502321, now seen corresponding path program 1 times [2022-12-14 05:33:25,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:33:25,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085820280] [2022-12-14 05:33:25,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:33:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:33:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:33:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:33:26,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:33:26,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085820280] [2022-12-14 05:33:26,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085820280] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:33:26,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223447256] [2022-12-14 05:33:26,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:33:26,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:33:26,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:33:26,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:33:26,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:33:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:33:26,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:33:26,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:33:26,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:33:26,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:33:26,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223447256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:33:26,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:33:26,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-12-14 05:33:26,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880281565] [2022-12-14 05:33:26,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:33:26,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:33:26,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:33:26,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:33:26,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:33:26,419 INFO L87 Difference]: Start difference. First operand 428 states and 579 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:33:28,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:33:28,029 INFO L93 Difference]: Finished difference Result 428 states and 579 transitions. [2022-12-14 05:33:28,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:33:28,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 54 [2022-12-14 05:33:28,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:33:28,032 INFO L225 Difference]: With dead ends: 428 [2022-12-14 05:33:28,032 INFO L226 Difference]: Without dead ends: 427 [2022-12-14 05:33:28,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:33:28,033 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 21 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:33:28,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 271 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 05:33:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-12-14 05:33:28,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2022-12-14 05:33:28,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 326 states have (on average 1.4417177914110428) internal successors, (470), 349 states have internal predecessors, (470), 53 states have call successors, (53), 30 states have call predecessors, (53), 30 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2022-12-14 05:33:28,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 576 transitions. [2022-12-14 05:33:28,062 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 576 transitions. Word has length 54 [2022-12-14 05:33:28,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:33:28,062 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 576 transitions. [2022-12-14 05:33:28,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 05:33:28,062 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 576 transitions. [2022-12-14 05:33:28,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-12-14 05:33:28,063 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:33:28,063 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:33:28,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:33:28,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:33:28,264 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flexcop_usb_transfer_exitErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flexcop_usb_transfer_exitErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-12-14 05:33:28,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:33:28,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1655625611, now seen corresponding path program 1 times [2022-12-14 05:33:28,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:33:28,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593309069] [2022-12-14 05:33:28,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:33:28,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:33:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:33:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:33:28,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:33:28,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593309069] [2022-12-14 05:33:28,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593309069] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:33:28,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037669538] [2022-12-14 05:33:28,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:33:28,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:33:28,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:33:28,429 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:33:28,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63ec4d8d-7b82-4275-9c6b-c536f2f1a756/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:33:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:33:28,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 05:33:28,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:33:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:33:28,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:33:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:33:28,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037669538] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:33:28,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [570509708] [2022-12-14 05:33:28,815 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2022-12-14 05:33:28,815 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:33:28,818 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:33:28,822 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:33:28,822 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:33:35,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:33:35,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 05:33:36,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:33:36,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:33:36,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:33:36,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:33:36,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:36,919 INFO L321 Elim1Store]: treesize reduction 1042, result has 25.7 percent of original size [2022-12-14 05:33:36,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 50 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 11 case distinctions, treesize of input 162 treesize of output 380 [2022-12-14 05:33:37,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:33:37,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:37,627 INFO L321 Elim1Store]: treesize reduction 1028, result has 26.9 percent of original size [2022-12-14 05:33:37,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 63 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 11 case distinctions, treesize of input 166 treesize of output 398 [2022-12-14 05:33:39,654 INFO L321 Elim1Store]: treesize reduction 56, result has 33.3 percent of original size [2022-12-14 05:33:39,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 38 [2022-12-14 05:33:40,343 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-12-14 05:33:40,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 42 [2022-12-14 05:33:40,619 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-12-14 05:33:40,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 05:33:40,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:40,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:40,981 INFO L321 Elim1Store]: treesize reduction 139, result has 24.9 percent of original size [2022-12-14 05:33:40,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 87 [2022-12-14 05:33:41,089 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-12-14 05:33:41,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 84 [2022-12-14 05:33:41,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:41,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:33:41,234 INFO L321 Elim1Store]: treesize reduction 138, result has 29.2 percent of original size [2022-12-14 05:33:41,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 60 treesize of output 92 [2022-12-14 05:33:41,318 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 22