./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bf5e73d985bafa5e008f16fba6fb54da90c4b127699bd918a748611ea9b79793 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:10:06,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:10:06,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:10:06,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:10:06,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:10:06,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:10:06,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:10:06,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:10:06,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:10:06,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:10:06,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:10:06,361 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:10:06,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:10:06,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:10:06,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:10:06,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:10:06,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:10:06,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:10:06,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:10:06,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:10:06,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:10:06,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:10:06,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:10:06,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:10:06,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:10:06,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:10:06,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:10:06,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:10:06,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:10:06,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:10:06,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:10:06,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:10:06,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:10:06,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:10:06,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:10:06,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:10:06,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:10:06,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:10:06,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:10:06,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:10:06,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:10:06,381 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 21:10:06,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:10:06,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:10:06,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:10:06,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:10:06,396 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:10:06,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:10:06,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:10:06,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:10:06,397 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:10:06,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:10:06,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:10:06,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:10:06,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:10:06,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:10:06,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:10:06,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:10:06,399 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:10:06,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:10:06,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:10:06,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:10:06,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:10:06,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:10:06,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:10:06,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:10:06,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:10:06,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:10:06,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:10:06,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:10:06,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:10:06,401 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:10:06,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:10:06,401 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:10:06,401 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5e73d985bafa5e008f16fba6fb54da90c4b127699bd918a748611ea9b79793 [2022-12-13 21:10:06,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:10:06,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:10:06,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:10:06,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:10:06,596 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:10:06,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-12-13 21:10:09,099 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:10:09,458 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:10:09,459 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-12-13 21:10:09,482 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/data/9f22395e0/73a7c51d8e83498497882f4733973440/FLAGf94a7311b [2022-12-13 21:10:09,673 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/data/9f22395e0/73a7c51d8e83498497882f4733973440 [2022-12-13 21:10:09,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:10:09,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:10:09,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:10:09,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:10:09,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:10:09,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:10:09" (1/1) ... [2022-12-13 21:10:09,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc435da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:09, skipping insertion in model container [2022-12-13 21:10:09,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:10:09" (1/1) ... [2022-12-13 21:10:09,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:10:09,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:10:10,089 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-13 21:10:10,119 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 21:10:10,122 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 21:10:10,151 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-13 21:10:10,154 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-13 21:10:10,157 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 21:10:10,184 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 21:10:10,239 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 21:10:10,241 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 21:10:10,241 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-13 21:10:10,245 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 21:10:10,246 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 21:10:10,319 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 21:10:10,322 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 21:10:10,383 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-12-13 21:10:10,389 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-13 21:10:10,420 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:10:10,424 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,425 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,427 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,428 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,428 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,440 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,441 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,444 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,446 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,447 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,451 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,456 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,461 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,461 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,462 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,464 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,465 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-12-13 21:10:10,466 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 21:10:10,466 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 21:10:10,466 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,469 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,469 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,471 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,471 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,475 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,476 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,476 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,478 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-12-13 21:10:10,478 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 21:10:10,479 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 21:10:10,479 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,481 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,482 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,482 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,483 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,484 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,484 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,488 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,489 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-12-13 21:10:10,490 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 21:10:10,490 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 21:10:10,493 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,494 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,494 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,494 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,498 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,499 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,500 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,507 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,513 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,519 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,522 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,525 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,526 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,526 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,529 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,530 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,530 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,531 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,531 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,534 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,539 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,543 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,547 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,548 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,551 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-13 21:10:10,552 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:10:10,553 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:10:10,553 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,554 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,555 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,559 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-13 21:10:10,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,560 WARN L623 FunctionHandler]: Unknown extern function cdev_add [2022-12-13 21:10:10,561 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,561 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:10:10,563 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:10:10,564 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 21:10:10,564 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 21:10:10,565 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 21:10:10,565 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 21:10:10,566 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:10:10,568 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 21:10:10,568 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 21:10:10,569 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:10:10,569 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:10:10,569 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:10:10,571 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,572 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,573 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,573 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,577 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,580 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,581 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,582 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,589 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 21:10:10,594 WARN L623 FunctionHandler]: Unknown extern function cdev_del [2022-12-13 21:10:10,594 WARN L623 FunctionHandler]: Unknown extern function cdev_init [2022-12-13 21:10:10,595 WARN L623 FunctionHandler]: Unknown extern function alloc_chrdev_region [2022-12-13 21:10:10,595 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-13 21:10:10,596 WARN L623 FunctionHandler]: Unknown extern function usb_gadget_register_driver [2022-12-13 21:10:10,596 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-13 21:10:10,596 WARN L623 FunctionHandler]: Unknown extern function unregister_chrdev_region [2022-12-13 21:10:10,597 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-13 21:10:10,597 WARN L623 FunctionHandler]: Unknown extern function unregister_chrdev_region [2022-12-13 21:10:10,597 WARN L623 FunctionHandler]: Unknown extern function usb_gadget_unregister_driver [2022-12-13 21:10:10,600 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_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2022-12-13 21:10:10,610 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 21:10:10,618 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 21:10:10,619 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 21:10:10,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:10:10,645 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:10:10,685 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-13 21:10:10,686 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 21:10:10,687 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 21:10:10,688 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-13 21:10:10,688 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-13 21:10:10,688 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 21:10:10,689 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 21:10:10,692 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 21:10:10,693 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-13 21:10:10,693 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-13 21:10:10,694 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-13 21:10:10,694 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-13 21:10:10,698 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 21:10:10,698 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 21:10:10,710 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-12-13 21:10:10,713 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-13 21:10:10,719 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:10:10,719 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,721 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,721 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,722 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,722 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,722 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,725 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,726 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,726 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,727 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,728 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,729 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,730 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,730 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,731 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,731 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-12-13 21:10:10,732 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 21:10:10,732 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 21:10:10,732 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,733 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,734 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,734 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,735 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,736 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,736 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,737 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,737 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,738 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-12-13 21:10:10,738 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 21:10:10,739 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 21:10:10,739 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,740 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,740 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,740 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,741 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,741 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,741 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,742 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,743 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-12-13 21:10:10,744 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-13 21:10:10,744 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-13 21:10:10,744 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,745 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,745 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,745 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,746 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,747 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,747 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,748 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,749 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,751 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,754 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,754 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,754 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,755 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,756 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,757 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,757 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,757 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,772 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-13 21:10:10,774 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,777 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,777 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,782 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 21:10:10,782 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,783 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-13 21:10:10,783 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:10:10,783 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:10:10,784 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,785 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,785 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,787 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-13 21:10:10,787 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,788 WARN L623 FunctionHandler]: Unknown extern function cdev_add [2022-12-13 21:10:10,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,788 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:10:10,789 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:10:10,790 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 21:10:10,790 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 21:10:10,790 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 21:10:10,790 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-13 21:10:10,791 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:10:10,792 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 21:10:10,792 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 21:10:10,793 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:10:10,793 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:10:10,793 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:10:10,794 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,795 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 21:10:10,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,796 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,797 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,797 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,798 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 21:10:10,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:10:10,799 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 21:10:10,800 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 21:10:10,803 WARN L623 FunctionHandler]: Unknown extern function cdev_del [2022-12-13 21:10:10,804 WARN L623 FunctionHandler]: Unknown extern function cdev_init [2022-12-13 21:10:10,804 WARN L623 FunctionHandler]: Unknown extern function alloc_chrdev_region [2022-12-13 21:10:10,809 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-13 21:10:10,810 WARN L623 FunctionHandler]: Unknown extern function usb_gadget_register_driver [2022-12-13 21:10:10,810 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-13 21:10:10,811 WARN L623 FunctionHandler]: Unknown extern function unregister_chrdev_region [2022-12-13 21:10:10,811 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-13 21:10:10,811 WARN L623 FunctionHandler]: Unknown extern function unregister_chrdev_region [2022-12-13 21:10:10,811 WARN L623 FunctionHandler]: Unknown extern function usb_gadget_unregister_driver [2022-12-13 21:10:10,812 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_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2022-12-13 21:10:10,813 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 21:10:10,816 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 21:10:10,816 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-13 21:10:10,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:10:10,848 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:10:10,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10 WrapperNode [2022-12-13 21:10:10,848 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:10:10,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:10:10,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:10:10,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:10:10,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:10,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:10,943 INFO L138 Inliner]: procedures = 189, calls = 1289, calls flagged for inlining = 74, calls inlined = 74, statements flattened = 3223 [2022-12-13 21:10:10,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:10:10,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:10:10,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:10:10,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:10:10,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:10,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:10,962 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:10,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:11,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:11,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:11,018 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:11,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:11,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:10:11,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:10:11,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:10:11,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:10:11,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (1/1) ... [2022-12-13 21:10:11,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:10:11,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:10:11,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:10:11,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:10:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2022-12-13 21:10:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2022-12-13 21:10:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-13 21:10:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-12-13 21:10:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-13 21:10:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 21:10:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-13 21:10:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2022-12-13 21:10:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2022-12-13 21:10:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2022-12-13 21:10:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 21:10:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2022-12-13 21:10:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-12-13 21:10:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-13 21:10:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-13 21:10:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 21:10:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2022-12-13 21:10:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2022-12-13 21:10:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-13 21:10:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-13 21:10:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2022-12-13 21:10:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-12-13 21:10:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-12-13 21:10:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-12-13 21:10:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2022-12-13 21:10:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-13 21:10:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-13 21:10:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2022-12-13 21:10:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2022-12-13 21:10:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2022-12-13 21:10:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2022-12-13 21:10:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2022-12-13 21:10:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2022-12-13 21:10:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-13 21:10:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-13 21:10:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-13 21:10:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-13 21:10:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-13 21:10:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-13 21:10:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-12-13 21:10:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-12-13 21:10:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-13 21:10:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-13 21:10:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-13 21:10:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-13 21:10:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2022-12-13 21:10:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2022-12-13 21:10:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:10:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 21:10:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-13 21:10:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-13 21:10:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-12-13 21:10:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-12-13 21:10:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-13 21:10:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-13 21:10:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2022-12-13 21:10:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2022-12-13 21:10:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-13 21:10:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-13 21:10:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-12-13 21:10:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-12-13 21:10:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-13 21:10:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-13 21:10:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-13 21:10:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-13 21:10:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2022-12-13 21:10:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2022-12-13 21:10:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2022-12-13 21:10:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2022-12-13 21:10:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 21:10:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 21:10:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-13 21:10:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-13 21:10:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2022-12-13 21:10:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2022-12-13 21:10:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-12-13 21:10:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-12-13 21:10:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2022-12-13 21:10:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2022-12-13 21:10:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:10:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-12-13 21:10:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-12-13 21:10:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 21:10:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-12-13 21:10:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-12-13 21:10:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:10:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:10:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-13 21:10:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-13 21:10:11,518 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:10:11,520 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:10:11,683 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 21:10:26,113 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:10:26,124 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:10:26,124 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:10:26,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:10:26 BoogieIcfgContainer [2022-12-13 21:10:26,127 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:10:26,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:10:26,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:10:26,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:10:26,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:10:09" (1/3) ... [2022-12-13 21:10:26,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16845333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:10:26, skipping insertion in model container [2022-12-13 21:10:26,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:10" (2/3) ... [2022-12-13 21:10:26,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16845333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:10:26, skipping insertion in model container [2022-12-13 21:10:26,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:10:26" (3/3) ... [2022-12-13 21:10:26,133 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-12-13 21:10:26,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:10:26,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:10:26,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:10:26,204 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@98f60d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:10:26,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:10:26,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 1219 states, 827 states have (on average 1.3639661426844014) internal successors, (1128), 870 states have internal predecessors, (1128), 323 states have call successors, (323), 68 states have call predecessors, (323), 67 states have return successors, (318), 315 states have call predecessors, (318), 318 states have call successors, (318) [2022-12-13 21:10:26,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-13 21:10:26,223 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:26,223 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:26,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:26,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1906296499, now seen corresponding path program 1 times [2022-12-13 21:10:26,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:26,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316054500] [2022-12-13 21:10:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:26,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:10:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:10:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:26,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:10:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:10:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:10:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:10:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:10:26,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:26,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 21:10:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 21:10:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:27,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 21:10:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 21:10:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-12-13 21:10:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-12-13 21:10:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-12-13 21:10:27,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:27,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316054500] [2022-12-13 21:10:27,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316054500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:27,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:27,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:10:27,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228613240] [2022-12-13 21:10:27,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:27,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:10:27,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:27,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:10:27,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:10:27,074 INFO L87 Difference]: Start difference. First operand has 1219 states, 827 states have (on average 1.3639661426844014) internal successors, (1128), 870 states have internal predecessors, (1128), 323 states have call successors, (323), 68 states have call predecessors, (323), 67 states have return successors, (318), 315 states have call predecessors, (318), 318 states have call successors, (318) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 21:10:29,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:10:31,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:10:33,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:10:35,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:10:42,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:10:42,310 INFO L93 Difference]: Finished difference Result 3997 states and 6023 transitions. [2022-12-13 21:10:42,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:10:42,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 173 [2022-12-13 21:10:42,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:10:42,338 INFO L225 Difference]: With dead ends: 3997 [2022-12-13 21:10:42,338 INFO L226 Difference]: Without dead ends: 2766 [2022-12-13 21:10:42,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:10:42,348 INFO L413 NwaCegarLoop]: 1592 mSDtfsCounter, 3920 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 2821 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4161 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 4776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2821 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:10:42,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4161 Valid, 3571 Invalid, 4776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2821 Valid, 1951 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2022-12-13 21:10:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-12-13 21:10:42,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2289. [2022-12-13 21:10:42,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2289 states, 1566 states have (on average 1.3575989782886335) internal successors, (2126), 1626 states have internal predecessors, (2126), 593 states have call successors, (593), 130 states have call predecessors, (593), 129 states have return successors, (580), 574 states have call predecessors, (580), 580 states have call successors, (580) [2022-12-13 21:10:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2289 states to 2289 states and 3299 transitions. [2022-12-13 21:10:42,496 INFO L78 Accepts]: Start accepts. Automaton has 2289 states and 3299 transitions. Word has length 173 [2022-12-13 21:10:42,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:10:42,496 INFO L495 AbstractCegarLoop]: Abstraction has 2289 states and 3299 transitions. [2022-12-13 21:10:42,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 21:10:42,497 INFO L276 IsEmpty]: Start isEmpty. Operand 2289 states and 3299 transitions. [2022-12-13 21:10:42,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-12-13 21:10:42,499 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:42,499 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:42,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:10:42,500 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:42,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:42,500 INFO L85 PathProgramCache]: Analyzing trace with hash -2066720589, now seen corresponding path program 1 times [2022-12-13 21:10:42,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:42,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721103674] [2022-12-13 21:10:42,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:42,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:10:42,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:10:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:10:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:10:42,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:10:42,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:10:42,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:42,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:10:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:10:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:10:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 21:10:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 21:10:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 21:10:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 21:10:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:10:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:42,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 21:10:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:10:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-12-13 21:10:43,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:10:43,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721103674] [2022-12-13 21:10:43,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721103674] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:10:43,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:10:43,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:10:43,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319431871] [2022-12-13 21:10:43,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:10:43,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:10:43,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:10:43,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:10:43,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:10:43,011 INFO L87 Difference]: Start difference. First operand 2289 states and 3299 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 21:10:45,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:10:47,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:11:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:00,442 INFO L93 Difference]: Finished difference Result 6118 states and 9265 transitions. [2022-12-13 21:11:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:11:00,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 171 [2022-12-13 21:11:00,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:00,476 INFO L225 Difference]: With dead ends: 6118 [2022-12-13 21:11:00,476 INFO L226 Difference]: Without dead ends: 6094 [2022-12-13 21:11:00,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:11:00,481 INFO L413 NwaCegarLoop]: 1457 mSDtfsCounter, 4763 mSDsluCounter, 3274 mSDsCounter, 0 mSdLazyCounter, 4077 mSolverCounterSat, 3020 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5050 SdHoareTripleChecker+Valid, 4731 SdHoareTripleChecker+Invalid, 7099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3020 IncrementalHoareTripleChecker+Valid, 4077 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:00,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5050 Valid, 4731 Invalid, 7099 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3020 Valid, 4077 Invalid, 2 Unknown, 0 Unchecked, 16.9s Time] [2022-12-13 21:11:00,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6094 states. [2022-12-13 21:11:00,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6094 to 4479. [2022-12-13 21:11:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4479 states, 3073 states have (on average 1.3579563944028636) internal successors, (4173), 3181 states have internal predecessors, (4173), 1154 states have call successors, (1154), 254 states have call predecessors, (1154), 251 states have return successors, (1142), 1127 states have call predecessors, (1142), 1142 states have call successors, (1142) [2022-12-13 21:11:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4479 states to 4479 states and 6469 transitions. [2022-12-13 21:11:00,681 INFO L78 Accepts]: Start accepts. Automaton has 4479 states and 6469 transitions. Word has length 171 [2022-12-13 21:11:00,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:00,681 INFO L495 AbstractCegarLoop]: Abstraction has 4479 states and 6469 transitions. [2022-12-13 21:11:00,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 21:11:00,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4479 states and 6469 transitions. [2022-12-13 21:11:00,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-12-13 21:11:00,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:00,683 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:00,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:11:00,683 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:00,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:00,684 INFO L85 PathProgramCache]: Analyzing trace with hash 355329309, now seen corresponding path program 1 times [2022-12-13 21:11:00,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:00,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379299560] [2022-12-13 21:11:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:00,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:11:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:11:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:11:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:11:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:11:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:11:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:01,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:11:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 21:11:01,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 21:11:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 21:11:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 21:11:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 21:11:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:01,139 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-12-13 21:11:01,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:01,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379299560] [2022-12-13 21:11:01,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379299560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:01,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:11:01,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:11:01,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418268363] [2022-12-13 21:11:01,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:01,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:11:01,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:01,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:11:01,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:11:01,142 INFO L87 Difference]: Start difference. First operand 4479 states and 6469 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 21:11:03,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:11:05,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:11:07,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:11:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:19,873 INFO L93 Difference]: Finished difference Result 16553 states and 24789 transitions. [2022-12-13 21:11:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:11:19,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2022-12-13 21:11:19,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:19,929 INFO L225 Difference]: With dead ends: 16553 [2022-12-13 21:11:19,929 INFO L226 Difference]: Without dead ends: 12104 [2022-12-13 21:11:19,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:11:19,945 INFO L413 NwaCegarLoop]: 1604 mSDtfsCounter, 4135 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 3859 mSolverCounterSat, 2203 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 5066 SdHoareTripleChecker+Invalid, 6065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2203 IncrementalHoareTripleChecker+Valid, 3859 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:19,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4427 Valid, 5066 Invalid, 6065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2203 Valid, 3859 Invalid, 3 Unknown, 0 Unchecked, 18.0s Time] [2022-12-13 21:11:19,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12104 states. [2022-12-13 21:11:20,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12104 to 8874. [2022-12-13 21:11:20,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8874 states, 6098 states have (on average 1.3592981305346015) internal successors, (8289), 6306 states have internal predecessors, (8289), 2280 states have call successors, (2280), 500 states have call predecessors, (2280), 495 states have return successors, (2262), 2235 states have call predecessors, (2262), 2262 states have call successors, (2262) [2022-12-13 21:11:20,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8874 states to 8874 states and 12831 transitions. [2022-12-13 21:11:20,315 INFO L78 Accepts]: Start accepts. Automaton has 8874 states and 12831 transitions. Word has length 172 [2022-12-13 21:11:20,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:20,316 INFO L495 AbstractCegarLoop]: Abstraction has 8874 states and 12831 transitions. [2022-12-13 21:11:20,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 21:11:20,316 INFO L276 IsEmpty]: Start isEmpty. Operand 8874 states and 12831 transitions. [2022-12-13 21:11:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-12-13 21:11:20,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:20,319 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:20,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:11:20,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:20,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:20,320 INFO L85 PathProgramCache]: Analyzing trace with hash 118863137, now seen corresponding path program 1 times [2022-12-13 21:11:20,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:20,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387485953] [2022-12-13 21:11:20,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:20,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:11:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:11:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:11:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:11:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:11:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:11:20,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:11:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 21:11:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 21:11:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 21:11:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 21:11:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 21:11:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 21:11:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2022-12-13 21:11:20,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:20,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387485953] [2022-12-13 21:11:20,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387485953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:20,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:11:20,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:11:20,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571928150] [2022-12-13 21:11:20,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:20,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:11:20,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:20,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:11:20,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:11:20,906 INFO L87 Difference]: Start difference. First operand 8874 states and 12831 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 21:11:22,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:11:24,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:11:36,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:36,040 INFO L93 Difference]: Finished difference Result 32980 states and 49404 transitions. [2022-12-13 21:11:36,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:11:36,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 190 [2022-12-13 21:11:36,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:36,139 INFO L225 Difference]: With dead ends: 32980 [2022-12-13 21:11:36,139 INFO L226 Difference]: Without dead ends: 24133 [2022-12-13 21:11:36,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:11:36,169 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 5623 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 2877 mSolverCounterSat, 3975 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5913 SdHoareTripleChecker+Valid, 3984 SdHoareTripleChecker+Invalid, 6854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3975 IncrementalHoareTripleChecker+Valid, 2877 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:36,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5913 Valid, 3984 Invalid, 6854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3975 Valid, 2877 Invalid, 2 Unknown, 0 Unchecked, 14.1s Time] [2022-12-13 21:11:36,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24133 states. [2022-12-13 21:11:36,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24133 to 17657. [2022-12-13 21:11:36,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17657 states, 12149 states have (on average 1.360029632068483) internal successors, (16523), 12553 states have internal predecessors, (16523), 4524 states have call successors, (4524), 991 states have call predecessors, (4524), 983 states have return successors, (4504), 4448 states have call predecessors, (4504), 4504 states have call successors, (4504) [2022-12-13 21:11:36,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17657 states to 17657 states and 25551 transitions. [2022-12-13 21:11:36,927 INFO L78 Accepts]: Start accepts. Automaton has 17657 states and 25551 transitions. Word has length 190 [2022-12-13 21:11:36,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:36,928 INFO L495 AbstractCegarLoop]: Abstraction has 17657 states and 25551 transitions. [2022-12-13 21:11:36,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 21:11:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 17657 states and 25551 transitions. [2022-12-13 21:11:36,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-12-13 21:11:36,930 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:36,931 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:36,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:11:36,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:36,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:36,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1480362508, now seen corresponding path program 1 times [2022-12-13 21:11:36,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:36,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340382302] [2022-12-13 21:11:36,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:36,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:11:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:11:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:37,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:11:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:11:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:11:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:11:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:11:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-12-13 21:11:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 21:11:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 21:11:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 21:11:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-12-13 21:11:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-12-13 21:11:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-12-13 21:11:37,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:37,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340382302] [2022-12-13 21:11:37,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340382302] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:11:37,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458580654] [2022-12-13 21:11:37,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:37,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:11:37,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:11:37,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:11:37,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 21:11:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:41,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 2872 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 21:11:41,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:11:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-12-13 21:11:42,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:11:42,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458580654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:11:42,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:11:42,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2022-12-13 21:11:42,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317812459] [2022-12-13 21:11:42,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:11:42,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:11:42,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:42,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:11:42,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:11:42,143 INFO L87 Difference]: Start difference. First operand 17657 states and 25551 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 21:11:42,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:11:42,974 INFO L93 Difference]: Finished difference Result 35349 states and 51151 transitions. [2022-12-13 21:11:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:11:42,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 192 [2022-12-13 21:11:42,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:11:43,045 INFO L225 Difference]: With dead ends: 35349 [2022-12-13 21:11:43,045 INFO L226 Difference]: Without dead ends: 17705 [2022-12-13 21:11:43,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 246 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-12-13 21:11:43,091 INFO L413 NwaCegarLoop]: 1715 mSDtfsCounter, 6 mSDsluCounter, 6840 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8555 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:11:43,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8555 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:11:43,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17705 states. [2022-12-13 21:11:43,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17705 to 17660. [2022-12-13 21:11:43,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17660 states, 12151 states have (on average 1.3600526705620937) internal successors, (16526), 12556 states have internal predecessors, (16526), 4524 states have call successors, (4524), 991 states have call predecessors, (4524), 984 states have return successors, (4505), 4448 states have call predecessors, (4505), 4504 states have call successors, (4505) [2022-12-13 21:11:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17660 states to 17660 states and 25555 transitions. [2022-12-13 21:11:43,740 INFO L78 Accepts]: Start accepts. Automaton has 17660 states and 25555 transitions. Word has length 192 [2022-12-13 21:11:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:11:43,741 INFO L495 AbstractCegarLoop]: Abstraction has 17660 states and 25555 transitions. [2022-12-13 21:11:43,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 21:11:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 17660 states and 25555 transitions. [2022-12-13 21:11:43,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-12-13 21:11:43,744 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:11:43,744 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:11:43,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:11:43,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:11:43,945 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:11:43,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:11:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1860550741, now seen corresponding path program 1 times [2022-12-13 21:11:43,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:11:43,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732990602] [2022-12-13 21:11:43,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:43,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:11:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:11:44,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:44,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:11:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:11:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:11:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:11:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:11:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:11:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:11:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:44,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 21:11:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 21:11:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-12-13 21:11:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-12-13 21:11:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-12-13 21:11:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-12-13 21:11:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:11:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-12-13 21:11:45,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:11:45,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732990602] [2022-12-13 21:11:45,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732990602] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:11:45,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543020983] [2022-12-13 21:11:45,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:11:45,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:11:45,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:11:45,172 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:11:45,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 21:11:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:11:47,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 2947 conjuncts, 19 conjunts are in the unsatisfiable core [2022-12-13 21:11:47,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:11:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-12-13 21:11:47,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:11:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-12-13 21:11:48,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543020983] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:11:48,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:11:48,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-12-13 21:11:48,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948291524] [2022-12-13 21:11:48,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:11:48,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 21:11:48,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:11:48,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 21:11:48,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:11:48,024 INFO L87 Difference]: Start difference. First operand 17660 states and 25555 transitions. Second operand has 17 states, 15 states have (on average 6.6) internal successors, (99), 13 states have internal predecessors, (99), 4 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-12-13 21:11:50,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:11:52,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:11:54,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:12:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:12:11,896 INFO L93 Difference]: Finished difference Result 41789 states and 62177 transitions. [2022-12-13 21:12:11,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 21:12:11,897 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.6) internal successors, (99), 13 states have internal predecessors, (99), 4 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 197 [2022-12-13 21:12:11,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:12:11,987 INFO L225 Difference]: With dead ends: 41789 [2022-12-13 21:12:11,987 INFO L226 Difference]: Without dead ends: 24142 [2022-12-13 21:12:12,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 444 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2022-12-13 21:12:12,023 INFO L413 NwaCegarLoop]: 1250 mSDtfsCounter, 1977 mSDsluCounter, 7876 mSDsCounter, 0 mSdLazyCounter, 6018 mSolverCounterSat, 1817 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 9126 SdHoareTripleChecker+Invalid, 7838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1817 IncrementalHoareTripleChecker+Valid, 6018 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:12:12,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 9126 Invalid, 7838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1817 Valid, 6018 Invalid, 3 Unknown, 0 Unchecked, 22.2s Time] [2022-12-13 21:12:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24142 states. [2022-12-13 21:12:12,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24142 to 17666. [2022-12-13 21:12:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17666 states, 12155 states have (on average 1.360016454134101) internal successors, (16531), 12560 states have internal predecessors, (16531), 4525 states have call successors, (4525), 992 states have call predecessors, (4525), 985 states have return successors, (4506), 4449 states have call predecessors, (4506), 4505 states have call successors, (4506) [2022-12-13 21:12:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17666 states to 17666 states and 25562 transitions. [2022-12-13 21:12:12,757 INFO L78 Accepts]: Start accepts. Automaton has 17666 states and 25562 transitions. Word has length 197 [2022-12-13 21:12:12,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:12:12,758 INFO L495 AbstractCegarLoop]: Abstraction has 17666 states and 25562 transitions. [2022-12-13 21:12:12,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.6) internal successors, (99), 13 states have internal predecessors, (99), 4 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-12-13 21:12:12,758 INFO L276 IsEmpty]: Start isEmpty. Operand 17666 states and 25562 transitions. [2022-12-13 21:12:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-12-13 21:12:12,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:12:12,761 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:12:12,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 21:12:12,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:12:12,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:12:12,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:12:12,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2104343380, now seen corresponding path program 2 times [2022-12-13 21:12:12,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:12:12,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919134932] [2022-12-13 21:12:12,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:12:12,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:12:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:12:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:12:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:13,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:12:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:12:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:12:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:13,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:12:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:12:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:13,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 21:12:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 21:12:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 21:12:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 21:12:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 21:12:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-12-13 21:12:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:14,196 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-12-13 21:12:14,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:12:14,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919134932] [2022-12-13 21:12:14,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919134932] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:12:14,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71361453] [2022-12-13 21:12:14,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:12:14,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:12:14,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:12:14,198 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:12:14,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 21:12:16,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 21:12:16,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:12:16,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 2268 conjuncts, 54 conjunts are in the unsatisfiable core [2022-12-13 21:12:16,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:12:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-12-13 21:12:17,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:12:17,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71361453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:12:17,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:12:17,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [12] total 23 [2022-12-13 21:12:17,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214524698] [2022-12-13 21:12:17,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:12:17,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:12:17,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:12:17,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:12:17,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=454, Unknown=0, NotChecked=0, Total=506 [2022-12-13 21:12:17,377 INFO L87 Difference]: Start difference. First operand 17666 states and 25562 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 21:12:19,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:12:21,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:12:23,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:12:25,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:12:36,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:12:36,234 INFO L93 Difference]: Finished difference Result 51522 states and 75158 transitions. [2022-12-13 21:12:36,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 21:12:36,235 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 202 [2022-12-13 21:12:36,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:12:36,368 INFO L225 Difference]: With dead ends: 51522 [2022-12-13 21:12:36,368 INFO L226 Difference]: Without dead ends: 33891 [2022-12-13 21:12:36,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2022-12-13 21:12:36,405 INFO L413 NwaCegarLoop]: 2219 mSDtfsCounter, 2688 mSDsluCounter, 20310 mSDsCounter, 0 mSdLazyCounter, 3290 mSolverCounterSat, 239 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2761 SdHoareTripleChecker+Valid, 22529 SdHoareTripleChecker+Invalid, 3533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 3290 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:12:36,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2761 Valid, 22529 Invalid, 3533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [239 Valid, 3290 Invalid, 4 Unknown, 0 Unchecked, 16.7s Time] [2022-12-13 21:12:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33891 states. [2022-12-13 21:12:37,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33891 to 30698. [2022-12-13 21:12:37,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30698 states, 21113 states have (on average 1.3608677118363093) internal successors, (28732), 21825 states have internal predecessors, (28732), 7865 states have call successors, (7865), 1714 states have call predecessors, (7865), 1719 states have return successors, (7888), 7746 states have call predecessors, (7888), 7845 states have call successors, (7888) [2022-12-13 21:12:37,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30698 states to 30698 states and 44485 transitions. [2022-12-13 21:12:37,686 INFO L78 Accepts]: Start accepts. Automaton has 30698 states and 44485 transitions. Word has length 202 [2022-12-13 21:12:37,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:12:37,686 INFO L495 AbstractCegarLoop]: Abstraction has 30698 states and 44485 transitions. [2022-12-13 21:12:37,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 10 states have internal predecessors, (61), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 21:12:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 30698 states and 44485 transitions. [2022-12-13 21:12:37,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-12-13 21:12:37,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:12:37,689 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:12:37,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 21:12:37,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 21:12:37,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:12:37,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:12:37,890 INFO L85 PathProgramCache]: Analyzing trace with hash -563942062, now seen corresponding path program 1 times [2022-12-13 21:12:37,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:12:37,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128416217] [2022-12-13 21:12:37,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:12:37,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:12:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:12:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:12:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:12:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:38,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:12:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:12:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:12:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:12:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:12:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:38,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 21:12:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 21:12:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 21:12:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 21:12:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:39,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 21:12:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:12:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 21:12:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 21:12:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-12-13 21:12:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:12:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:39,155 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-12-13 21:12:39,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:12:39,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128416217] [2022-12-13 21:12:39,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128416217] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:12:39,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046592480] [2022-12-13 21:12:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:12:39,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:12:39,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:12:39,156 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:12:39,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 21:12:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:12:44,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 3091 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 21:12:44,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:12:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 116 proven. 3 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2022-12-13 21:12:44,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:12:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2022-12-13 21:12:45,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046592480] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:12:45,457 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:12:45,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2022-12-13 21:12:45,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860928732] [2022-12-13 21:12:45,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:12:45,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-13 21:12:45,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:12:45,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-13 21:12:45,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-12-13 21:12:45,461 INFO L87 Difference]: Start difference. First operand 30698 states and 44485 transitions. Second operand has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-12-13 21:12:47,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:12:49,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:12:51,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:12:53,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:13:14,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:13:14,984 INFO L93 Difference]: Finished difference Result 72778 states and 108426 transitions. [2022-12-13 21:13:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 21:13:14,985 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 223 [2022-12-13 21:13:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:13:15,134 INFO L225 Difference]: With dead ends: 72778 [2022-12-13 21:13:15,134 INFO L226 Difference]: Without dead ends: 42090 [2022-12-13 21:13:15,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 501 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=181, Invalid=941, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 21:13:15,222 INFO L413 NwaCegarLoop]: 1251 mSDtfsCounter, 1984 mSDsluCounter, 7876 mSDsCounter, 0 mSdLazyCounter, 6101 mSolverCounterSat, 1816 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 9127 SdHoareTripleChecker+Invalid, 7921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1816 IncrementalHoareTripleChecker+Valid, 6101 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:13:15,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 9127 Invalid, 7921 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1816 Valid, 6101 Invalid, 4 Unknown, 0 Unchecked, 26.3s Time] [2022-12-13 21:13:15,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42090 states. [2022-12-13 21:13:16,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42090 to 30699. [2022-12-13 21:13:16,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30699 states, 21114 states have (on average 1.3608979823813583) internal successors, (28734), 21826 states have internal predecessors, (28734), 7865 states have call successors, (7865), 1714 states have call predecessors, (7865), 1719 states have return successors, (7888), 7746 states have call predecessors, (7888), 7845 states have call successors, (7888) [2022-12-13 21:13:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30699 states to 30699 states and 44487 transitions. [2022-12-13 21:13:16,613 INFO L78 Accepts]: Start accepts. Automaton has 30699 states and 44487 transitions. Word has length 223 [2022-12-13 21:13:16,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:13:16,613 INFO L495 AbstractCegarLoop]: Abstraction has 30699 states and 44487 transitions. [2022-12-13 21:13:16,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 6.055555555555555) internal successors, (109), 16 states have internal predecessors, (109), 4 states have call successors, (49), 6 states have call predecessors, (49), 6 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2022-12-13 21:13:16,614 INFO L276 IsEmpty]: Start isEmpty. Operand 30699 states and 44487 transitions. [2022-12-13 21:13:16,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-12-13 21:13:16,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:13:16,617 INFO L195 NwaCegarLoop]: trace histogram [15, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:13:16,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 21:13:16,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 21:13:16,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:13:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:13:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash -210753559, now seen corresponding path program 2 times [2022-12-13 21:13:16,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:13:16,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936612797] [2022-12-13 21:13:16,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:13:16,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:13:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:13:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:13:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:13:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:13:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:13:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:13:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:13:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:13:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:13:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:13:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:13:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:13:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:13:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:17,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 21:13:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 21:13:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 21:13:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 21:13:18,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 21:13:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:13:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 21:13:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 21:13:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-12-13 21:13:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:13:18,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:13:18,207 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-12-13 21:13:18,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:13:18,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936612797] [2022-12-13 21:13:18,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936612797] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:13:18,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813298515] [2022-12-13 21:13:18,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:13:18,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:13:18,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:13:18,209 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:13:18,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 21:15:12,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 21:15:12,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:15:12,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 2150 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-13 21:15:12,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:13,497 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2022-12-13 21:15:13,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:15:13,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813298515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:15:13,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:15:13,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 22 [2022-12-13 21:15:13,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073494749] [2022-12-13 21:15:13,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:15:13,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 21:15:13,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:13,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 21:15:13,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-12-13 21:15:13,501 INFO L87 Difference]: Start difference. First operand 30699 states and 44487 transitions. Second operand has 11 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-13 21:15:15,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:15:17,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:15:19,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:15:21,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:15:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:32,962 INFO L93 Difference]: Finished difference Result 77510 states and 112878 transitions. [2022-12-13 21:15:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:15:32,964 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 228 [2022-12-13 21:15:32,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:15:33,115 INFO L225 Difference]: With dead ends: 77510 [2022-12-13 21:15:33,115 INFO L226 Difference]: Without dead ends: 46846 [2022-12-13 21:15:33,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2022-12-13 21:15:33,182 INFO L413 NwaCegarLoop]: 2195 mSDtfsCounter, 2692 mSDsluCounter, 16516 mSDsCounter, 0 mSdLazyCounter, 3047 mSolverCounterSat, 250 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 18711 SdHoareTripleChecker+Invalid, 3301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 3047 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:15:33,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 18711 Invalid, 3301 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [250 Valid, 3047 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2022-12-13 21:15:33,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46846 states. [2022-12-13 21:15:35,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46846 to 36187. [2022-12-13 21:15:35,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36187 states, 24888 states have (on average 1.3608164577306332) internal successors, (33868), 25729 states have internal predecessors, (33868), 9270 states have call successors, (9270), 2023 states have call predecessors, (9270), 2028 states have return successors, (9299), 9127 states have call predecessors, (9299), 9250 states have call successors, (9299) [2022-12-13 21:15:35,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36187 states to 36187 states and 52437 transitions. [2022-12-13 21:15:35,145 INFO L78 Accepts]: Start accepts. Automaton has 36187 states and 52437 transitions. Word has length 228 [2022-12-13 21:15:35,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:15:35,146 INFO L495 AbstractCegarLoop]: Abstraction has 36187 states and 52437 transitions. [2022-12-13 21:15:35,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 9 states have internal predecessors, (68), 4 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-12-13 21:15:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 36187 states and 52437 transitions. [2022-12-13 21:15:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-12-13 21:15:35,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:15:35,149 INFO L195 NwaCegarLoop]: trace histogram [15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:15:35,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 21:15:35,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:15:35,349 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:15:35,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:35,350 INFO L85 PathProgramCache]: Analyzing trace with hash -833549467, now seen corresponding path program 1 times [2022-12-13 21:15:35,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:35,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953182254] [2022-12-13 21:15:35,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:35,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:15:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:15:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:15:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:15:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:15:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:15:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:15:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:15:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:15:35,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:15:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:15:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:15:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:15:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 21:15:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 21:15:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 21:15:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 21:15:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 21:15:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-12-13 21:15:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-12-13 21:15:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:15:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-12-13 21:15:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-12-13 21:15:35,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:35,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953182254] [2022-12-13 21:15:35,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953182254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:15:35,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:15:35,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:15:35,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346804025] [2022-12-13 21:15:35,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:15:35,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:15:35,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:35,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:15:35,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:15:35,880 INFO L87 Difference]: Start difference. First operand 36187 states and 52437 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 21:15:37,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:15:39,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:15:41,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:16:02,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:16:02,901 INFO L93 Difference]: Finished difference Result 85579 states and 127456 transitions. [2022-12-13 21:16:02,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:16:02,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 226 [2022-12-13 21:16:02,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:16:03,090 INFO L225 Difference]: With dead ends: 85579 [2022-12-13 21:16:03,090 INFO L226 Difference]: Without dead ends: 49427 [2022-12-13 21:16:03,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:16:03,167 INFO L413 NwaCegarLoop]: 2394 mSDtfsCounter, 2908 mSDsluCounter, 6199 mSDsCounter, 0 mSdLazyCounter, 5971 mSolverCounterSat, 1513 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 8593 SdHoareTripleChecker+Invalid, 7487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1513 IncrementalHoareTripleChecker+Valid, 5971 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:16:03,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3190 Valid, 8593 Invalid, 7487 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1513 Valid, 5971 Invalid, 3 Unknown, 0 Unchecked, 23.5s Time] [2022-12-13 21:16:03,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49427 states. [2022-12-13 21:16:05,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49427 to 36168. [2022-12-13 21:16:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36168 states, 24869 states have (on average 1.3603683300494591) internal successors, (33831), 25712 states have internal predecessors, (33831), 9270 states have call successors, (9270), 2023 states have call predecessors, (9270), 2028 states have return successors, (9299), 9125 states have call predecessors, (9299), 9250 states have call successors, (9299) [2022-12-13 21:16:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36168 states to 36168 states and 52400 transitions. [2022-12-13 21:16:05,311 INFO L78 Accepts]: Start accepts. Automaton has 36168 states and 52400 transitions. Word has length 226 [2022-12-13 21:16:05,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:16:05,312 INFO L495 AbstractCegarLoop]: Abstraction has 36168 states and 52400 transitions. [2022-12-13 21:16:05,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-13 21:16:05,312 INFO L276 IsEmpty]: Start isEmpty. Operand 36168 states and 52400 transitions. [2022-12-13 21:16:05,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-12-13 21:16:05,315 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:16:05,315 INFO L195 NwaCegarLoop]: trace histogram [15, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:16:05,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 21:16:05,315 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:16:05,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:16:05,316 INFO L85 PathProgramCache]: Analyzing trace with hash -417714209, now seen corresponding path program 1 times [2022-12-13 21:16:05,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:16:05,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141420061] [2022-12-13 21:16:05,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:16:05,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:16:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:16:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:16:06,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:16:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:16:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:16:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:16:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:16:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 21:16:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 21:16:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-12-13 21:16:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 21:16:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-12-13 21:16:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:16:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 21:16:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 21:16:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-12-13 21:16:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-12-13 21:16:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-12-13 21:16:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-12-13 21:16:06,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:16:06,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141420061] [2022-12-13 21:16:06,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141420061] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:16:06,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333131206] [2022-12-13 21:16:06,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:16:06,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:16:06,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:16:06,768 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:16:06,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 21:16:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:20,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 3250 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 21:16:20,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:16:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 144 proven. 6 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2022-12-13 21:16:20,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:16:21,781 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-12-13 21:16:21,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333131206] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:16:21,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:16:21,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 23 [2022-12-13 21:16:21,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623677947] [2022-12-13 21:16:21,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:16:21,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-13 21:16:21,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:16:21,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-13 21:16:21,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2022-12-13 21:16:21,784 INFO L87 Difference]: Start difference. First operand 36168 states and 52400 transitions. Second operand has 23 states, 21 states have (on average 6.190476190476191) internal successors, (130), 19 states have internal predecessors, (130), 4 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2022-12-13 21:16:23,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:16:55,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:16:55,850 INFO L93 Difference]: Finished difference Result 85852 states and 127898 transitions. [2022-12-13 21:16:55,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 21:16:55,851 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 6.190476190476191) internal successors, (130), 19 states have internal predecessors, (130), 4 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) Word has length 244 [2022-12-13 21:16:55,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:16:56,054 INFO L225 Difference]: With dead ends: 85852 [2022-12-13 21:16:56,054 INFO L226 Difference]: Without dead ends: 49694 [2022-12-13 21:16:56,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 586 GetRequests, 547 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=216, Invalid=1266, Unknown=0, NotChecked=0, Total=1482 [2022-12-13 21:16:56,128 INFO L413 NwaCegarLoop]: 1252 mSDtfsCounter, 1619 mSDsluCounter, 14395 mSDsCounter, 0 mSdLazyCounter, 10846 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 15647 SdHoareTripleChecker+Invalid, 12259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 10846 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:16:56,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 15647 Invalid, 12259 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 10846 Invalid, 1 Unknown, 0 Unchecked, 29.4s Time] [2022-12-13 21:16:56,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49694 states. [2022-12-13 21:16:58,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49694 to 36169. [2022-12-13 21:16:58,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36169 states, 24870 states have (on average 1.3603940490550865) internal successors, (33833), 25713 states have internal predecessors, (33833), 9270 states have call successors, (9270), 2023 states have call predecessors, (9270), 2028 states have return successors, (9299), 9125 states have call predecessors, (9299), 9250 states have call successors, (9299) [2022-12-13 21:16:58,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36169 states to 36169 states and 52402 transitions. [2022-12-13 21:16:58,257 INFO L78 Accepts]: Start accepts. Automaton has 36169 states and 52402 transitions. Word has length 244 [2022-12-13 21:16:58,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:16:58,258 INFO L495 AbstractCegarLoop]: Abstraction has 36169 states and 52402 transitions. [2022-12-13 21:16:58,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 6.190476190476191) internal successors, (130), 19 states have internal predecessors, (130), 4 states have call successors, (56), 6 states have call predecessors, (56), 6 states have return successors, (41), 4 states have call predecessors, (41), 4 states have call successors, (41) [2022-12-13 21:16:58,258 INFO L276 IsEmpty]: Start isEmpty. Operand 36169 states and 52402 transitions. [2022-12-13 21:16:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-12-13 21:16:58,261 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:16:58,261 INFO L195 NwaCegarLoop]: trace histogram [20, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:16:58,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 21:16:58,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 21:16:58,463 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:16:58,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:16:58,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2003563688, now seen corresponding path program 2 times [2022-12-13 21:16:58,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:16:58,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633817758] [2022-12-13 21:16:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:16:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:16:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:16:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:59,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:16:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:16:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:16:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:16:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:16:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:16:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:16:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 21:16:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 21:16:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 21:16:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 21:16:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:16:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:16:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 21:17:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:17:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 21:17:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:17:00,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 21:17:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 21:17:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:17:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-12-13 21:17:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:17:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-12-13 21:17:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:17:00,064 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-13 21:17:00,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:17:00,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633817758] [2022-12-13 21:17:00,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633817758] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:17:00,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863786519] [2022-12-13 21:17:00,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:17:00,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:17:00,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:17:00,065 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:17:00,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 21:19:24,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 21:19:24,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:19:24,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 2234 conjuncts, 43 conjunts are in the unsatisfiable core [2022-12-13 21:19:24,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:19:25,280 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2022-12-13 21:19:25,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:19:25,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863786519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:19:25,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:19:25,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 23 [2022-12-13 21:19:25,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345205917] [2022-12-13 21:19:25,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:19:25,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 21:19:25,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:19:25,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 21:19:25,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2022-12-13 21:19:25,284 INFO L87 Difference]: Start difference. First operand 36169 states and 52402 transitions. Second operand has 11 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-12-13 21:19:27,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:19:29,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:19:31,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:19:33,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:19:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:19:43,931 INFO L93 Difference]: Finished difference Result 67802 states and 98243 transitions. [2022-12-13 21:19:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 21:19:43,932 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 249 [2022-12-13 21:19:43,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:19:44,033 INFO L225 Difference]: With dead ends: 67802 [2022-12-13 21:19:44,033 INFO L226 Difference]: Without dead ends: 31668 [2022-12-13 21:19:44,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2022-12-13 21:19:44,104 INFO L413 NwaCegarLoop]: 3267 mSDtfsCounter, 2133 mSDsluCounter, 21742 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 242 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 25009 SdHoareTripleChecker+Invalid, 2788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:19:44,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 25009 Invalid, 2788 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [242 Valid, 2542 Invalid, 4 Unknown, 0 Unchecked, 15.2s Time] [2022-12-13 21:19:44,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31668 states. [2022-12-13 21:19:46,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31668 to 31532. [2022-12-13 21:19:46,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31532 states, 21661 states have (on average 1.3613868242463414) internal successors, (29489), 22397 states have internal predecessors, (29489), 8107 states have call successors, (8107), 1757 states have call predecessors, (8107), 1763 states have return successors, (8138), 7986 states have call predecessors, (8138), 8095 states have call successors, (8138) [2022-12-13 21:19:46,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31532 states to 31532 states and 45734 transitions. [2022-12-13 21:19:46,267 INFO L78 Accepts]: Start accepts. Automaton has 31532 states and 45734 transitions. Word has length 249 [2022-12-13 21:19:46,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:19:46,267 INFO L495 AbstractCegarLoop]: Abstraction has 31532 states and 45734 transitions. [2022-12-13 21:19:46,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 4 states have call successors, (26), 3 states have call predecessors, (26), 4 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-12-13 21:19:46,268 INFO L276 IsEmpty]: Start isEmpty. Operand 31532 states and 45734 transitions. [2022-12-13 21:19:46,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-12-13 21:19:46,271 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:19:46,271 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:19:46,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 21:19:46,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 21:19:46,472 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:19:46,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:19:46,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2043884944, now seen corresponding path program 1 times [2022-12-13 21:19:46,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:19:46,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198321774] [2022-12-13 21:19:46,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:19:46,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:19:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:19:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:19:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:19:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:19:46,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:19:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:46,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:19:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:19:47,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:19:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:19:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:19:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:19:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:19:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:19:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 21:19:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 21:19:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 21:19:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 21:19:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 21:19:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-12-13 21:19:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 21:19:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:19:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-12-13 21:19:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-12-13 21:19:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:19:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 590 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2022-12-13 21:19:47,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:19:47,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198321774] [2022-12-13 21:19:47,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198321774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:19:47,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:19:47,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-13 21:19:47,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800328308] [2022-12-13 21:19:47,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:19:47,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 21:19:47,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:19:47,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 21:19:47,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:19:47,206 INFO L87 Difference]: Start difference. First operand 31532 states and 45734 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 21:19:49,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:19:51,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:19:53,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:20:27,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:20:27,745 INFO L93 Difference]: Finished difference Result 69666 states and 103864 transitions. [2022-12-13 21:20:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:20:27,746 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 243 [2022-12-13 21:20:27,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:20:27,871 INFO L225 Difference]: With dead ends: 69666 [2022-12-13 21:20:27,872 INFO L226 Difference]: Without dead ends: 38169 [2022-12-13 21:20:27,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-12-13 21:20:27,936 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 4255 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 11774 mSolverCounterSat, 2562 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4491 SdHoareTripleChecker+Valid, 4920 SdHoareTripleChecker+Invalid, 14339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2562 IncrementalHoareTripleChecker+Valid, 11774 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:20:27,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4491 Valid, 4920 Invalid, 14339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2562 Valid, 11774 Invalid, 3 Unknown, 0 Unchecked, 36.7s Time] [2022-12-13 21:20:27,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38169 states. [2022-12-13 21:20:29,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38169 to 25056. [2022-12-13 21:20:29,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25056 states, 17212 states have (on average 1.3607947943295375) internal successors, (23422), 17794 states have internal predecessors, (23422), 6437 states have call successors, (6437), 1403 states have call predecessors, (6437), 1406 states have return successors, (6461), 6341 states have call predecessors, (6461), 6427 states have call successors, (6461) [2022-12-13 21:20:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25056 states to 25056 states and 36320 transitions. [2022-12-13 21:20:29,942 INFO L78 Accepts]: Start accepts. Automaton has 25056 states and 36320 transitions. Word has length 243 [2022-12-13 21:20:29,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:20:29,943 INFO L495 AbstractCegarLoop]: Abstraction has 25056 states and 36320 transitions. [2022-12-13 21:20:29,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 21:20:29,943 INFO L276 IsEmpty]: Start isEmpty. Operand 25056 states and 36320 transitions. [2022-12-13 21:20:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-12-13 21:20:29,946 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:20:29,946 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:29,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 21:20:29,946 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:20:29,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:29,947 INFO L85 PathProgramCache]: Analyzing trace with hash 423153460, now seen corresponding path program 1 times [2022-12-13 21:20:29,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:29,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710026413] [2022-12-13 21:20:29,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:29,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:20:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:20:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:20:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:20:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:20:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:20:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:20:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:30,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 21:20:31,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 21:20:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 21:20:31,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 21:20:31,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 21:20:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-12-13 21:20:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 21:20:31,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-12-13 21:20:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2022-12-13 21:20:31,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:31,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710026413] [2022-12-13 21:20:31,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710026413] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:20:31,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994464929] [2022-12-13 21:20:31,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:31,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:31,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:20:31,233 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:20:31,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 21:20:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:32,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 3317 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 21:20:32,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:20:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2022-12-13 21:20:32,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:20:32,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994464929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:32,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:20:32,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-12-13 21:20:32,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782476081] [2022-12-13 21:20:32,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:32,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:20:32,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:20:32,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-12-13 21:20:32,458 INFO L87 Difference]: Start difference. First operand 25056 states and 36320 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 21:20:34,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:20:34,041 INFO L93 Difference]: Finished difference Result 26205 states and 38138 transitions. [2022-12-13 21:20:34,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:20:34,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 247 [2022-12-13 21:20:34,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:20:34,082 INFO L225 Difference]: With dead ends: 26205 [2022-12-13 21:20:34,083 INFO L226 Difference]: Without dead ends: 15346 [2022-12-13 21:20:34,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-12-13 21:20:34,106 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 1464 mSDsluCounter, 7913 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 10035 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:20:34,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 10035 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 21:20:34,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15346 states. [2022-12-13 21:20:35,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15346 to 14265. [2022-12-13 21:20:35,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14265 states, 9802 states have (on average 1.3582942256682309) internal successors, (13314), 10131 states have internal predecessors, (13314), 3654 states have call successors, (3654), 806 states have call predecessors, (3654), 808 states have return successors, (3665), 3600 states have call predecessors, (3665), 3646 states have call successors, (3665) [2022-12-13 21:20:35,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14265 states to 14265 states and 20633 transitions. [2022-12-13 21:20:35,165 INFO L78 Accepts]: Start accepts. Automaton has 14265 states and 20633 transitions. Word has length 247 [2022-12-13 21:20:35,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:20:35,165 INFO L495 AbstractCegarLoop]: Abstraction has 14265 states and 20633 transitions. [2022-12-13 21:20:35,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 21:20:35,165 INFO L276 IsEmpty]: Start isEmpty. Operand 14265 states and 20633 transitions. [2022-12-13 21:20:35,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-12-13 21:20:35,168 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:20:35,168 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:35,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 21:20:35,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:35,370 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:20:35,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:35,371 INFO L85 PathProgramCache]: Analyzing trace with hash 654059965, now seen corresponding path program 1 times [2022-12-13 21:20:35,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:35,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055212406] [2022-12-13 21:20:35,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:35,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:20:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:20:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:36,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:20:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:20:36,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:20:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:20:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:36,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:20:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 21:20:36,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 21:20:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 21:20:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 21:20:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 21:20:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-12-13 21:20:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 21:20:36,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 21:20:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:36,688 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2022-12-13 21:20:36,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:36,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055212406] [2022-12-13 21:20:36,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055212406] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:20:36,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180322147] [2022-12-13 21:20:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:36,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:20:36,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:20:36,689 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:20:36,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 21:20:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:37,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 3324 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-13 21:20:37,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:20:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2022-12-13 21:20:37,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:20:37,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180322147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:37,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:20:37,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2022-12-13 21:20:37,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904007552] [2022-12-13 21:20:37,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:37,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:20:37,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:37,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:20:37,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-12-13 21:20:37,856 INFO L87 Difference]: Start difference. First operand 14265 states and 20633 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-13 21:20:39,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:20:39,422 INFO L93 Difference]: Finished difference Result 15419 states and 22475 transitions. [2022-12-13 21:20:39,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:20:39,423 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 250 [2022-12-13 21:20:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:20:39,447 INFO L225 Difference]: With dead ends: 15419 [2022-12-13 21:20:39,447 INFO L226 Difference]: Without dead ends: 11088 [2022-12-13 21:20:39,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2022-12-13 21:20:39,456 INFO L413 NwaCegarLoop]: 2250 mSDtfsCounter, 1428 mSDsluCounter, 8008 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 10258 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:20:39,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 10258 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 21:20:39,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11088 states. [2022-12-13 21:20:40,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11088 to 9961. [2022-12-13 21:20:40,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9961 states, 6846 states have (on average 1.3556821501606777) internal successors, (9281), 7076 states have internal predecessors, (9281), 2545 states have call successors, (2545), 568 states have call predecessors, (2545), 569 states have return successors, (2550), 2505 states have call predecessors, (2550), 2537 states have call successors, (2550) [2022-12-13 21:20:40,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9961 states to 9961 states and 14376 transitions. [2022-12-13 21:20:40,186 INFO L78 Accepts]: Start accepts. Automaton has 9961 states and 14376 transitions. Word has length 250 [2022-12-13 21:20:40,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:20:40,186 INFO L495 AbstractCegarLoop]: Abstraction has 9961 states and 14376 transitions. [2022-12-13 21:20:40,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-13 21:20:40,187 INFO L276 IsEmpty]: Start isEmpty. Operand 9961 states and 14376 transitions. [2022-12-13 21:20:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-13 21:20:40,190 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:20:40,190 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:20:40,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 21:20:40,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 21:20:40,391 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:20:40,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:20:40,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1130787862, now seen corresponding path program 1 times [2022-12-13 21:20:40,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:20:40,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569092810] [2022-12-13 21:20:40,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:20:40,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:20:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:20:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:20:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:20:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:20:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:20:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:40,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:20:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:20:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:20:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 21:20:40,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:40,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 21:20:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 21:20:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 21:20:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 21:20:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-12-13 21:20:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 21:20:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 21:20:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:20:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-12-13 21:20:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:20:41,102 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2022-12-13 21:20:41,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:20:41,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569092810] [2022-12-13 21:20:41,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569092810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:20:41,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:20:41,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:20:41,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361703395] [2022-12-13 21:20:41,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:20:41,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:20:41,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:20:41,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:20:41,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:20:41,104 INFO L87 Difference]: Start difference. First operand 9961 states and 14376 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 21:20:43,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:20:45,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:20:47,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:20:49,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:21:07,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:21:07,182 INFO L93 Difference]: Finished difference Result 23497 states and 34877 transitions. [2022-12-13 21:21:07,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:21:07,183 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 253 [2022-12-13 21:21:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:21:07,223 INFO L225 Difference]: With dead ends: 23497 [2022-12-13 21:21:07,223 INFO L226 Difference]: Without dead ends: 13571 [2022-12-13 21:21:07,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-12-13 21:21:07,242 INFO L413 NwaCegarLoop]: 1601 mSDtfsCounter, 2544 mSDsluCounter, 7997 mSDsCounter, 0 mSdLazyCounter, 6245 mSolverCounterSat, 1437 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2624 SdHoareTripleChecker+Valid, 9598 SdHoareTripleChecker+Invalid, 7686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1437 IncrementalHoareTripleChecker+Valid, 6245 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:21:07,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2624 Valid, 9598 Invalid, 7686 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1437 Valid, 6245 Invalid, 4 Unknown, 0 Unchecked, 24.3s Time] [2022-12-13 21:21:07,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13571 states. [2022-12-13 21:21:08,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13571 to 9943. [2022-12-13 21:21:08,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9943 states, 6834 states have (on average 1.355721393034826) internal successors, (9265), 7064 states have internal predecessors, (9265), 2541 states have call successors, (2541), 564 states have call predecessors, (2541), 567 states have return successors, (2546), 2503 states have call predecessors, (2546), 2533 states have call successors, (2546) [2022-12-13 21:21:08,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9943 states to 9943 states and 14352 transitions. [2022-12-13 21:21:08,031 INFO L78 Accepts]: Start accepts. Automaton has 9943 states and 14352 transitions. Word has length 253 [2022-12-13 21:21:08,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:21:08,031 INFO L495 AbstractCegarLoop]: Abstraction has 9943 states and 14352 transitions. [2022-12-13 21:21:08,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 21:21:08,032 INFO L276 IsEmpty]: Start isEmpty. Operand 9943 states and 14352 transitions. [2022-12-13 21:21:08,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-12-13 21:21:08,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:08,037 INFO L195 NwaCegarLoop]: trace histogram [20, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:21:08,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 21:21:08,038 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:08,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:08,038 INFO L85 PathProgramCache]: Analyzing trace with hash 819997029, now seen corresponding path program 1 times [2022-12-13 21:21:08,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:21:08,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586428830] [2022-12-13 21:21:08,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:21:08,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:21:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:21:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:21:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:21:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:21:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:21:08,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:21:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:21:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 21:21:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 21:21:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 21:21:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 21:21:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 21:21:08,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-12-13 21:21:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-12-13 21:21:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-12-13 21:21:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2022-12-13 21:21:08,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:21:08,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586428830] [2022-12-13 21:21:08,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586428830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:21:08,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:21:08,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 21:21:08,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291380582] [2022-12-13 21:21:08,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:21:08,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 21:21:08,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:21:08,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:21:08,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:21:08,867 INFO L87 Difference]: Start difference. First operand 9943 states and 14352 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-13 21:21:10,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:21:12,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:21:35,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:21:35,141 INFO L93 Difference]: Finished difference Result 19137 states and 28207 transitions. [2022-12-13 21:21:35,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:21:35,141 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 252 [2022-12-13 21:21:35,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:21:35,166 INFO L225 Difference]: With dead ends: 19137 [2022-12-13 21:21:35,166 INFO L226 Difference]: Without dead ends: 9229 [2022-12-13 21:21:35,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2022-12-13 21:21:35,181 INFO L413 NwaCegarLoop]: 1456 mSDtfsCounter, 4521 mSDsluCounter, 9128 mSDsCounter, 0 mSdLazyCounter, 7337 mSolverCounterSat, 2080 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4736 SdHoareTripleChecker+Valid, 10584 SdHoareTripleChecker+Invalid, 9419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2080 IncrementalHoareTripleChecker+Valid, 7337 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:21:35,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4736 Valid, 10584 Invalid, 9419 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2080 Valid, 7337 Invalid, 2 Unknown, 0 Unchecked, 24.5s Time] [2022-12-13 21:21:35,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9229 states. [2022-12-13 21:21:35,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9229 to 6808. [2022-12-13 21:21:35,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6808 states, 4677 states have (on average 1.34851400470387) internal successors, (6307), 4835 states have internal predecessors, (6307), 1728 states have call successors, (1728), 399 states have call predecessors, (1728), 402 states have return successors, (1727), 1699 states have call predecessors, (1727), 1720 states have call successors, (1727) [2022-12-13 21:21:35,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6808 states to 6808 states and 9762 transitions. [2022-12-13 21:21:35,732 INFO L78 Accepts]: Start accepts. Automaton has 6808 states and 9762 transitions. Word has length 252 [2022-12-13 21:21:35,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:21:35,732 INFO L495 AbstractCegarLoop]: Abstraction has 6808 states and 9762 transitions. [2022-12-13 21:21:35,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 8 states have internal predecessors, (86), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-12-13 21:21:35,732 INFO L276 IsEmpty]: Start isEmpty. Operand 6808 states and 9762 transitions. [2022-12-13 21:21:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-12-13 21:21:35,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:21:35,735 INFO L195 NwaCegarLoop]: trace histogram [20, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:21:35,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 21:21:35,735 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:21:35,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:21:35,735 INFO L85 PathProgramCache]: Analyzing trace with hash -702237603, now seen corresponding path program 1 times [2022-12-13 21:21:35,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:21:35,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674836205] [2022-12-13 21:21:35,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:21:35,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:21:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:21:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:21:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:21:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:21:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:21:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:21:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:21:36,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 21:21:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 21:21:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 21:21:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:36,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-12-13 21:21:36,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-12-13 21:21:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:21:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 21:21:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 21:21:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-12-13 21:21:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:37,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-12-13 21:21:37,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:21:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:21:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-12-13 21:21:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-12-13 21:21:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:37,100 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-12-13 21:21:37,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:21:37,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674836205] [2022-12-13 21:21:37,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674836205] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:21:37,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342965182] [2022-12-13 21:21:37,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:21:37,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:21:37,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:21:37,101 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:21:37,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 21:21:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:21:44,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 3374 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 21:21:44,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:21:44,359 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 264 proven. 10 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2022-12-13 21:21:44,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:21:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-12-13 21:21:45,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342965182] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:21:45,308 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:21:45,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-12-13 21:21:45,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271578627] [2022-12-13 21:21:45,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:21:45,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 21:21:45,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:21:45,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 21:21:45,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2022-12-13 21:21:45,311 INFO L87 Difference]: Start difference. First operand 6808 states and 9762 transitions. Second operand has 24 states, 22 states have (on average 5.909090909090909) internal successors, (130), 20 states have internal predecessors, (130), 4 states have call successors, (59), 6 states have call predecessors, (59), 6 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2022-12-13 21:21:47,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:21:49,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:22:24,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:22:24,383 INFO L93 Difference]: Finished difference Result 16085 states and 23750 transitions. [2022-12-13 21:22:24,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 21:22:24,385 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 5.909090909090909) internal successors, (130), 20 states have internal predecessors, (130), 4 states have call successors, (59), 6 states have call predecessors, (59), 6 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 264 [2022-12-13 21:22:24,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:22:24,410 INFO L225 Difference]: With dead ends: 16085 [2022-12-13 21:22:24,411 INFO L226 Difference]: Without dead ends: 9290 [2022-12-13 21:22:24,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 590 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=250, Invalid=1390, Unknown=0, NotChecked=0, Total=1640 [2022-12-13 21:22:24,424 INFO L413 NwaCegarLoop]: 1238 mSDtfsCounter, 1574 mSDsluCounter, 14991 mSDsCounter, 0 mSdLazyCounter, 11797 mSolverCounterSat, 1309 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1657 SdHoareTripleChecker+Valid, 16229 SdHoareTripleChecker+Invalid, 13108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1309 IncrementalHoareTripleChecker+Valid, 11797 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:22:24,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1657 Valid, 16229 Invalid, 13108 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1309 Valid, 11797 Invalid, 2 Unknown, 0 Unchecked, 36.4s Time] [2022-12-13 21:22:24,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9290 states. [2022-12-13 21:22:24,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9290 to 6817. [2022-12-13 21:22:24,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6817 states, 4685 states have (on average 1.3489861259338314) internal successors, (6320), 4843 states have internal predecessors, (6320), 1728 states have call successors, (1728), 400 states have call predecessors, (1728), 403 states have return successors, (1728), 1699 states have call predecessors, (1728), 1720 states have call successors, (1728) [2022-12-13 21:22:25,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6817 states to 6817 states and 9776 transitions. [2022-12-13 21:22:25,007 INFO L78 Accepts]: Start accepts. Automaton has 6817 states and 9776 transitions. Word has length 264 [2022-12-13 21:22:25,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:22:25,007 INFO L495 AbstractCegarLoop]: Abstraction has 6817 states and 9776 transitions. [2022-12-13 21:22:25,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 5.909090909090909) internal successors, (130), 20 states have internal predecessors, (130), 4 states have call successors, (59), 6 states have call predecessors, (59), 6 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2022-12-13 21:22:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6817 states and 9776 transitions. [2022-12-13 21:22:25,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-12-13 21:22:25,010 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:22:25,010 INFO L195 NwaCegarLoop]: trace histogram [23, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:22:25,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-13 21:22:25,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 21:22:25,212 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:22:25,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:22:25,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1863545558, now seen corresponding path program 2 times [2022-12-13 21:22:25,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:22:25,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352370871] [2022-12-13 21:22:25,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:22:25,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:22:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:22:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:22:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:22:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:22:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 21:22:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:22:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:22:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:22:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-12-13 21:22:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:22:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 21:22:25,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:22:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:25,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:22:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 21:22:26,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-12-13 21:22:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-12-13 21:22:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 21:22:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-12-13 21:22:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:22:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-12-13 21:22:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-12-13 21:22:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-12-13 21:22:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-12-13 21:22:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:22:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:22:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-12-13 21:22:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-12-13 21:22:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:22:26,787 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2022-12-13 21:22:26,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:22:26,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352370871] [2022-12-13 21:22:26,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352370871] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:22:26,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748414113] [2022-12-13 21:22:26,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:22:26,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:22:26,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:22:26,788 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:22:26,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a50fbd22-6e56-4288-9cb3-cf71baff3cd4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process