./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.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_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/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_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/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_9524c3a1-6274-438e-9a09-e7824ae3d8eb/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 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec --- 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 17:54:52,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:54:52,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:54:52,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:54:52,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:54:52,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:54:52,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:54:52,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:54:52,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:54:52,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:54:52,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:54:52,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:54:52,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:54:52,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:54:52,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:54:52,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:54:52,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:54:52,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:54:52,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:54:52,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:54:52,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:54:52,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:54:52,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:54:52,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:54:52,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:54:52,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:54:52,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:54:52,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:54:52,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:54:52,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:54:52,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:54:52,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:54:52,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:54:52,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:54:52,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:54:52,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:54:52,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:54:52,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:54:52,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:54:52,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:54:52,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:54:52,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 17:54:52,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:54:52,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:54:52,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:54:52,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:54:52,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:54:52,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:54:52,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:54:52,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:54:52,437 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:54:52,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:54:52,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:54:52,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:54:52,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:54:52,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:54:52,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:54:52,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:54:52,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:54:52,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:54:52,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:54:52,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:54:52,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:54:52,439 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:54:52,439 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:54:52,439 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:54:52,439 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_9524c3a1-6274-438e-9a09-e7824ae3d8eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2022-12-13 17:54:52,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:54:52,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:54:52,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:54:52,640 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:54:52,640 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:54:52,641 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-12-13 17:54:55,172 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:54:55,577 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:54:55,578 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-12-13 17:54:55,604 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/data/90945c885/01cd32f4520a438dadba69eb47c0d84a/FLAGf9d0fa46d [2022-12-13 17:54:55,743 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/data/90945c885/01cd32f4520a438dadba69eb47c0d84a [2022-12-13 17:54:55,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:54:55,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:54:55,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:54:55,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:54:55,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:54:55,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:54:55" (1/1) ... [2022-12-13 17:54:55,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c20b248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:55, skipping insertion in model container [2022-12-13 17:54:55,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:54:55" (1/1) ... [2022-12-13 17:54:55,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:54:55,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:54:56,247 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 17:54:56,332 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 17:54:56,371 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-13 17:54:56,415 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-13 17:54:56,420 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 17:54:56,421 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-13 17:54:56,439 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-13 17:54:56,451 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:54:56,455 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 17:54:56,472 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 17:54:56,543 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-13 17:54:56,547 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-13 17:54:56,616 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,617 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,618 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,620 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 17:54:56,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,630 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,632 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 17:54:56,632 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,632 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,634 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,634 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,635 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,636 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 17:54:56,636 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,636 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:56,637 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,637 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 17:54:56,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,638 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:56,638 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,640 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,641 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:56,641 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,646 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,667 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts_init [2022-12-13 17:54:56,668 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts_init [2022-12-13 17:54:56,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,676 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 17:54:56,682 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 17:54:56,683 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 17:54:56,684 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,689 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:56,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,722 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:56,723 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:54:56,724 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,729 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:56,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,731 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 17:54:56,735 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,741 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,741 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 17:54:56,742 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 17:54:56,743 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:56,747 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 17:54:56,748 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 17:54:56,749 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 17:54:56,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,754 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 17:54:56,754 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 17:54:56,755 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,755 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 17:54:56,756 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:56,756 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:56,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,763 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,765 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,765 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,773 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,776 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:56,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,782 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,783 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,792 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:56,793 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:54:56,793 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,797 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,807 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,808 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,812 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 17:54:56,813 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-13 17:54:56,818 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-13 17:54:56,820 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-13 17:54:56,820 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-13 17:54:56,820 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 17:54:56,821 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,829 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,830 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:54:56,830 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:54:56,838 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,838 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-13 17:54:56,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,840 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:56,840 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 17:54:56,841 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,841 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:56,842 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,844 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:56,844 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:56,845 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 17:54:56,846 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 17:54:56,847 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:56,847 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,857 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,858 WARN L623 FunctionHandler]: Unknown extern function dvb_register_adapter [2022-12-13 17:54:56,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,860 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_init [2022-12-13 17:54:56,860 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,860 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:56,861 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_init [2022-12-13 17:54:56,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,861 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 17:54:56,861 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:56,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,862 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 17:54:56,863 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 17:54:56,863 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:56,863 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,864 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 17:54:56,864 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 17:54:56,864 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:56,865 WARN L623 FunctionHandler]: Unknown extern function dvb_net_init [2022-12-13 17:54:56,868 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,869 WARN L623 FunctionHandler]: Unknown extern function dvb_net_release [2022-12-13 17:54:56,869 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 17:54:56,870 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 17:54:56,870 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_frontend [2022-12-13 17:54:56,871 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:56,874 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,875 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 17:54:56,875 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-13 17:54:56,879 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,880 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 17:54:56,884 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-13 17:54:56,885 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:54:56,885 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,889 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 17:54:56,894 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:54:56,894 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,904 WARN L623 FunctionHandler]: Unknown extern function ttusbdecfe_dvbs_attach [2022-12-13 17:54:56,904 WARN L623 FunctionHandler]: Unknown extern function ttusbdecfe_dvbt_attach [2022-12-13 17:54:56,905 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,906 WARN L623 FunctionHandler]: Unknown extern function dvb_register_frontend [2022-12-13 17:54:56,906 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,911 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,911 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:56,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:56,937 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 17:54:56,957 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 17:54:56,957 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:54:56,962 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_9524c3a1-6274-438e-9a09-e7824ae3d8eb/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-12-13 17:54:56,972 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 17:54:56,973 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 17:54:57,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:54:57,023 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:54:57,091 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-13 17:54:57,093 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 17:54:57,094 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-13 17:54:57,099 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-13 17:54:57,099 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 17:54:57,100 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-13 17:54:57,101 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-12-13 17:54:57,101 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 17:54:57,102 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 17:54:57,104 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 17:54:57,107 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-13 17:54:57,107 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-12-13 17:54:57,115 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,115 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,116 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,116 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 17:54:57,117 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,118 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,119 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 17:54:57,119 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,119 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,120 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,120 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,121 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 17:54:57,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,122 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:57,122 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,122 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 17:54:57,122 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,122 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:57,122 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,123 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,123 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,124 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:57,124 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,125 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,129 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,131 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts_init [2022-12-13 17:54:57,131 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts_init [2022-12-13 17:54:57,132 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,132 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,133 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 17:54:57,137 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 17:54:57,137 WARN L623 FunctionHandler]: Unknown extern function dvb_filter_pes2ts [2022-12-13 17:54:57,138 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,139 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:57,140 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,141 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,142 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,145 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,148 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,149 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:57,150 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:54:57,150 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,151 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:57,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,152 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 17:54:57,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,154 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,155 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 17:54:57,155 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 17:54:57,155 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:57,156 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 17:54:57,157 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 17:54:57,157 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-12-13 17:54:57,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,158 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-13 17:54:57,158 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 17:54:57,158 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,158 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 17:54:57,159 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:57,159 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 17:54:57,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,161 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,161 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,161 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,161 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,162 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,162 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,164 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,168 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:57,169 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,170 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,170 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,172 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-13 17:54:57,172 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:54:57,172 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,173 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,173 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,174 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,176 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 17:54:57,176 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-12-13 17:54:57,177 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-12-13 17:54:57,178 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-12-13 17:54:57,178 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-12-13 17:54:57,179 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 17:54:57,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,180 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,180 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:54:57,181 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 17:54:57,183 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,184 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-13 17:54:57,184 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,184 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,185 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:57,185 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 17:54:57,185 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,186 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:57,186 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,187 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:57,188 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:57,189 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 17:54:57,189 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 17:54:57,189 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-13 17:54:57,189 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,192 WARN L623 FunctionHandler]: Unknown extern function dvb_register_adapter [2022-12-13 17:54:57,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,193 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_init [2022-12-13 17:54:57,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,194 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:57,194 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_init [2022-12-13 17:54:57,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,194 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 17:54:57,194 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:57,195 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,195 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 17:54:57,195 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 17:54:57,196 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:57,196 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,196 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 17:54:57,197 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 17:54:57,197 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:57,197 WARN L623 FunctionHandler]: Unknown extern function dvb_net_init [2022-12-13 17:54:57,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,198 WARN L623 FunctionHandler]: Unknown extern function dvb_net_release [2022-12-13 17:54:57,198 WARN L623 FunctionHandler]: Unknown extern function dvb_dmxdev_release [2022-12-13 17:54:57,198 WARN L623 FunctionHandler]: Unknown extern function dvb_dmx_release [2022-12-13 17:54:57,198 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_frontend [2022-12-13 17:54:57,200 WARN L623 FunctionHandler]: Unknown extern function dvb_unregister_adapter [2022-12-13 17:54:57,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,201 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 17:54:57,201 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-12-13 17:54:57,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,202 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-13 17:54:57,202 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-12-13 17:54:57,203 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:54:57,203 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,203 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 17:54:57,204 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-13 17:54:57,204 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,206 WARN L623 FunctionHandler]: Unknown extern function ttusbdecfe_dvbs_attach [2022-12-13 17:54:57,206 WARN L623 FunctionHandler]: Unknown extern function ttusbdecfe_dvbt_attach [2022-12-13 17:54:57,207 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,207 WARN L623 FunctionHandler]: Unknown extern function dvb_register_frontend [2022-12-13 17:54:57,207 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,210 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,210 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 17:54:57,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 17:54:57,213 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 17:54:57,216 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 17:54:57,217 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 17:54:57,217 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_9524c3a1-6274-438e-9a09-e7824ae3d8eb/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-12-13 17:54:57,218 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 17:54:57,219 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 17:54:57,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:54:57,270 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:54:57,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57 WrapperNode [2022-12-13 17:54:57,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:54:57,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:54:57,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:54:57,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:54:57,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,371 INFO L138 Inliner]: procedures = 177, calls = 1621, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3770 [2022-12-13 17:54:57,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:54:57,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:54:57,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:54:57,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:54:57,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:54:57,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:54:57,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:54:57,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:54:57,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (1/1) ... [2022-12-13 17:54:57,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:54:57,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:54:57,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:54:57,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:54:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-13 17:54:57,536 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-13 17:54:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-13 17:54:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-12-13 17:54:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-13 17:54:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-12-13 17:54:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-12-13 17:54:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-12-13 17:54:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-12-13 17:54:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-12-13 17:54:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:54:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2022-12-13 17:54:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:54:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-13 17:54:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-12-13 17:54:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-12-13 17:54:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-12-13 17:54:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-12-13 17:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-12-13 17:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-12-13 17:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-12-13 17:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-12-13 17:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-12-13 17:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-13 17:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-13 17:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-12-13 17:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-12-13 17:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 17:54:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:54:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:54:58,034 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:54:58,036 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:54:58,180 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-13 17:54:58,284 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-12-13 17:54:58,284 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-12-13 17:54:58,502 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-13 17:54:59,392 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##203: assume false; [2022-12-13 17:54:59,392 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##204: assume !false; [2022-12-13 17:54:59,684 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-12-13 17:54:59,692 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-13 17:54:59,692 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-13 17:55:02,055 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2022-12-13 17:55:02,055 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2022-12-13 17:55:02,055 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-12-13 17:55:02,055 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-12-13 17:55:02,055 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2022-12-13 17:55:02,407 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-13 17:55:02,958 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-12-13 17:55:02,959 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-12-13 17:55:03,014 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:55:03,026 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:55:03,027 INFO L300 CfgBuilder]: Removed 38 assume(true) statements. [2022-12-13 17:55:03,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:55:03 BoogieIcfgContainer [2022-12-13 17:55:03,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:55:03,032 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:55:03,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:55:03,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:55:03,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:54:55" (1/3) ... [2022-12-13 17:55:03,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3784769b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:55:03, skipping insertion in model container [2022-12-13 17:55:03,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:54:57" (2/3) ... [2022-12-13 17:55:03,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3784769b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:55:03, skipping insertion in model container [2022-12-13 17:55:03,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:55:03" (3/3) ... [2022-12-13 17:55:03,038 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-12-13 17:55:03,056 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:55:03,056 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 17:55:03,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:55:03,126 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;@6cf82a22, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:55:03,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 17:55:03,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 1006 states, 752 states have (on average 1.4148936170212767) internal successors, (1064), 776 states have internal predecessors, (1064), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) [2022-12-13 17:55:03,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 17:55:03,137 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:03,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:03,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:03,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:03,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1639951202, now seen corresponding path program 1 times [2022-12-13 17:55:03,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:03,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54823947] [2022-12-13 17:55:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:03,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:03,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:03,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:03,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:55:03,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:03,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54823947] [2022-12-13 17:55:03,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54823947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:03,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:03,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:03,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558308631] [2022-12-13 17:55:03,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:03,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:03,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:03,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:03,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:03,683 INFO L87 Difference]: Start difference. First operand has 1006 states, 752 states have (on average 1.4148936170212767) internal successors, (1064), 776 states have internal predecessors, (1064), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:55:03,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:03,907 INFO L93 Difference]: Finished difference Result 2978 states and 4448 transitions. [2022-12-13 17:55:03,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:03,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-13 17:55:03,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:03,935 INFO L225 Difference]: With dead ends: 2978 [2022-12-13 17:55:03,936 INFO L226 Difference]: Without dead ends: 1970 [2022-12-13 17:55:03,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:03,953 INFO L413 NwaCegarLoop]: 1963 mSDtfsCounter, 1358 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:03,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 3321 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:55:03,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1970 states. [2022-12-13 17:55:04,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1970 to 1966. [2022-12-13 17:55:04,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1473 states have (on average 1.3027834351663272) internal successors, (1919), 1501 states have internal predecessors, (1919), 389 states have call successors, (389), 104 states have call predecessors, (389), 103 states have return successors, (399), 373 states have call predecessors, (399), 385 states have call successors, (399) [2022-12-13 17:55:04,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2707 transitions. [2022-12-13 17:55:04,134 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2707 transitions. Word has length 16 [2022-12-13 17:55:04,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:04,135 INFO L495 AbstractCegarLoop]: Abstraction has 1966 states and 2707 transitions. [2022-12-13 17:55:04,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:55:04,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2707 transitions. [2022-12-13 17:55:04,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 17:55:04,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:04,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:04,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:55:04,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:04,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:04,137 INFO L85 PathProgramCache]: Analyzing trace with hash -701499781, now seen corresponding path program 1 times [2022-12-13 17:55:04,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:04,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10441930] [2022-12-13 17:55:04,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:04,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:04,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:55:04,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:04,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10441930] [2022-12-13 17:55:04,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10441930] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:04,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:04,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:55:04,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083053444] [2022-12-13 17:55:04,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:04,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:55:04,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:04,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:55:04,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:04,396 INFO L87 Difference]: Start difference. First operand 1966 states and 2707 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:55:04,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:04,527 INFO L93 Difference]: Finished difference Result 5871 states and 8162 transitions. [2022-12-13 17:55:04,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:55:04,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-13 17:55:04,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:04,546 INFO L225 Difference]: With dead ends: 5871 [2022-12-13 17:55:04,547 INFO L226 Difference]: Without dead ends: 3909 [2022-12-13 17:55:04,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:55:04,556 INFO L413 NwaCegarLoop]: 1801 mSDtfsCounter, 1345 mSDsluCounter, 1351 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 3152 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:04,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 3152 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:55:04,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3909 states. [2022-12-13 17:55:04,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3909 to 3902. [2022-12-13 17:55:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3902 states, 2925 states have (on average 1.3022222222222222) internal successors, (3809), 2976 states have internal predecessors, (3809), 772 states have call successors, (772), 205 states have call predecessors, (772), 204 states have return successors, (832), 744 states have call predecessors, (832), 768 states have call successors, (832) [2022-12-13 17:55:04,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3902 states to 3902 states and 5413 transitions. [2022-12-13 17:55:04,684 INFO L78 Accepts]: Start accepts. Automaton has 3902 states and 5413 transitions. Word has length 17 [2022-12-13 17:55:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:04,684 INFO L495 AbstractCegarLoop]: Abstraction has 3902 states and 5413 transitions. [2022-12-13 17:55:04,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:55:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3902 states and 5413 transitions. [2022-12-13 17:55:04,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-13 17:55:04,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:04,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:04,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:55:04,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:04,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:04,686 INFO L85 PathProgramCache]: Analyzing trace with hash 120007349, now seen corresponding path program 1 times [2022-12-13 17:55:04,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:04,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432562954] [2022-12-13 17:55:04,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:04,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:55:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:55:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:05,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:55:05,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:05,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432562954] [2022-12-13 17:55:05,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432562954] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:05,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:05,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 17:55:05,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793800507] [2022-12-13 17:55:05,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:05,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:55:05,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:05,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:55:05,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:55:05,314 INFO L87 Difference]: Start difference. First operand 3902 states and 5413 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:55:07,878 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 17:55:11,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:11,470 INFO L93 Difference]: Finished difference Result 8682 states and 12282 transitions. [2022-12-13 17:55:11,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:55:11,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2022-12-13 17:55:11,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:11,502 INFO L225 Difference]: With dead ends: 8682 [2022-12-13 17:55:11,502 INFO L226 Difference]: Without dead ends: 4788 [2022-12-13 17:55:11,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:11,525 INFO L413 NwaCegarLoop]: 1241 mSDtfsCounter, 543 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 1793 mSolverCounterSat, 224 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 5237 SdHoareTripleChecker+Invalid, 2018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 1793 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:11,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 5237 Invalid, 2018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 1793 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-12-13 17:55:11,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4788 states. [2022-12-13 17:55:11,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4788 to 4007. [2022-12-13 17:55:11,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4007 states, 3000 states have (on average 1.2983333333333333) internal successors, (3895), 3057 states have internal predecessors, (3895), 793 states have call successors, (793), 205 states have call predecessors, (793), 213 states have return successors, (892), 768 states have call predecessors, (892), 789 states have call successors, (892) [2022-12-13 17:55:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4007 states to 4007 states and 5580 transitions. [2022-12-13 17:55:11,724 INFO L78 Accepts]: Start accepts. Automaton has 4007 states and 5580 transitions. Word has length 60 [2022-12-13 17:55:11,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:11,724 INFO L495 AbstractCegarLoop]: Abstraction has 4007 states and 5580 transitions. [2022-12-13 17:55:11,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:55:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 4007 states and 5580 transitions. [2022-12-13 17:55:11,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-12-13 17:55:11,725 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:11,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:11,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:55:11,726 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1805525962, now seen corresponding path program 1 times [2022-12-13 17:55:11,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:11,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736899698] [2022-12-13 17:55:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:11,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:11,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 17:55:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 17:55:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:11,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:55:11,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:11,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736899698] [2022-12-13 17:55:11,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736899698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:11,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:11,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 17:55:11,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431421387] [2022-12-13 17:55:11,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:12,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:12,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:12,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:12,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:12,001 INFO L87 Difference]: Start difference. First operand 4007 states and 5580 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:55:14,414 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 17:55:16,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:16,420 INFO L93 Difference]: Finished difference Result 8819 states and 12504 transitions. [2022-12-13 17:55:16,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:16,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2022-12-13 17:55:16,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:16,438 INFO L225 Difference]: With dead ends: 8819 [2022-12-13 17:55:16,439 INFO L226 Difference]: Without dead ends: 4823 [2022-12-13 17:55:16,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:55:16,451 INFO L413 NwaCegarLoop]: 1230 mSDtfsCounter, 553 mSDsluCounter, 1722 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 231 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 2952 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:16,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 2952 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 949 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-12-13 17:55:16,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4823 states. [2022-12-13 17:55:16,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4823 to 4042. [2022-12-13 17:55:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4042 states, 3035 states have (on average 1.2985172981878088) internal successors, (3941), 3092 states have internal predecessors, (3941), 793 states have call successors, (793), 205 states have call predecessors, (793), 213 states have return successors, (892), 768 states have call predecessors, (892), 789 states have call successors, (892) [2022-12-13 17:55:16,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4042 states to 4042 states and 5626 transitions. [2022-12-13 17:55:16,614 INFO L78 Accepts]: Start accepts. Automaton has 4042 states and 5626 transitions. Word has length 60 [2022-12-13 17:55:16,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:16,615 INFO L495 AbstractCegarLoop]: Abstraction has 4042 states and 5626 transitions. [2022-12-13 17:55:16,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:55:16,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4042 states and 5626 transitions. [2022-12-13 17:55:16,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 17:55:16,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:16,618 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 17:55:16,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:55:16,619 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:16,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:16,619 INFO L85 PathProgramCache]: Analyzing trace with hash -322743963, now seen corresponding path program 1 times [2022-12-13 17:55:16,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:16,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832113729] [2022-12-13 17:55:16,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:16,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 17:55:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:55:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 17:55:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 17:55:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 17:55:17,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:17,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832113729] [2022-12-13 17:55:17,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832113729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:17,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:17,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:55:17,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076585475] [2022-12-13 17:55:17,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:17,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:55:17,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:17,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:55:17,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:17,365 INFO L87 Difference]: Start difference. First operand 4042 states and 5626 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-13 17:55:20,208 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 17:55:29,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:29,237 INFO L93 Difference]: Finished difference Result 14193 states and 21468 transitions. [2022-12-13 17:55:29,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 17:55:29,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 94 [2022-12-13 17:55:29,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:29,271 INFO L225 Difference]: With dead ends: 14193 [2022-12-13 17:55:29,272 INFO L226 Difference]: Without dead ends: 10163 [2022-12-13 17:55:29,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:55:29,288 INFO L413 NwaCegarLoop]: 1811 mSDtfsCounter, 2799 mSDsluCounter, 4444 mSDsCounter, 0 mSdLazyCounter, 5158 mSolverCounterSat, 1091 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 6255 SdHoareTripleChecker+Invalid, 6250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 5158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:29,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 6255 Invalid, 6250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 5158 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2022-12-13 17:55:29,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2022-12-13 17:55:29,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 8257. [2022-12-13 17:55:29,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8257 states, 6174 states have (on average 1.2977000323939099) internal successors, (8012), 6371 states have internal predecessors, (8012), 1580 states have call successors, (1580), 393 states have call predecessors, (1580), 502 states have return successors, (2508), 1552 states have call predecessors, (2508), 1576 states have call successors, (2508) [2022-12-13 17:55:29,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8257 states to 8257 states and 12100 transitions. [2022-12-13 17:55:29,682 INFO L78 Accepts]: Start accepts. Automaton has 8257 states and 12100 transitions. Word has length 94 [2022-12-13 17:55:29,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:29,682 INFO L495 AbstractCegarLoop]: Abstraction has 8257 states and 12100 transitions. [2022-12-13 17:55:29,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 4 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-13 17:55:29,682 INFO L276 IsEmpty]: Start isEmpty. Operand 8257 states and 12100 transitions. [2022-12-13 17:55:29,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 17:55:29,684 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:29,684 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 17:55:29,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:55:29,684 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:29,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:29,684 INFO L85 PathProgramCache]: Analyzing trace with hash 564478883, now seen corresponding path program 1 times [2022-12-13 17:55:29,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:29,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822286891] [2022-12-13 17:55:29,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:29,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:30,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:30,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:30,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 17:55:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:30,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:55:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:30,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:30,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:30,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 17:55:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 17:55:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 17:55:30,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:30,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822286891] [2022-12-13 17:55:30,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822286891] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:30,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:30,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:55:30,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945369750] [2022-12-13 17:55:30,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:30,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:55:30,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:30,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:55:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:55:30,343 INFO L87 Difference]: Start difference. First operand 8257 states and 12100 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 17:55:33,059 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 17:55:39,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:39,645 INFO L93 Difference]: Finished difference Result 19017 states and 28778 transitions. [2022-12-13 17:55:39,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:55:39,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 94 [2022-12-13 17:55:39,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:39,693 INFO L225 Difference]: With dead ends: 19017 [2022-12-13 17:55:39,693 INFO L226 Difference]: Without dead ends: 10772 [2022-12-13 17:55:39,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:55:39,719 INFO L413 NwaCegarLoop]: 1112 mSDtfsCounter, 1398 mSDsluCounter, 3325 mSDsCounter, 0 mSdLazyCounter, 3432 mSolverCounterSat, 527 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 4437 SdHoareTripleChecker+Invalid, 3960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 3432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:39,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 4437 Invalid, 3960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 3432 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-12-13 17:55:39,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10772 states. [2022-12-13 17:55:40,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10772 to 8636. [2022-12-13 17:55:40,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8636 states, 6446 states have (on average 1.2967731926776296) internal successors, (8359), 6653 states have internal predecessors, (8359), 1649 states have call successors, (1649), 419 states have call predecessors, (1649), 540 states have return successors, (2695), 1623 states have call predecessors, (2695), 1645 states have call successors, (2695) [2022-12-13 17:55:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8636 states to 8636 states and 12703 transitions. [2022-12-13 17:55:40,100 INFO L78 Accepts]: Start accepts. Automaton has 8636 states and 12703 transitions. Word has length 94 [2022-12-13 17:55:40,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:40,101 INFO L495 AbstractCegarLoop]: Abstraction has 8636 states and 12703 transitions. [2022-12-13 17:55:40,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 17:55:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 8636 states and 12703 transitions. [2022-12-13 17:55:40,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-13 17:55:40,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:40,115 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 17:55:40,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:55:40,115 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:40,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:40,116 INFO L85 PathProgramCache]: Analyzing trace with hash -642045285, now seen corresponding path program 1 times [2022-12-13 17:55:40,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:40,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525088536] [2022-12-13 17:55:40,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:40,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:40,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:40,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:40,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 17:55:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:55:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:40,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:40,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:40,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 17:55:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 17:55:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:40,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 17:55:40,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:40,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525088536] [2022-12-13 17:55:40,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525088536] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:40,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:55:40,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:55:40,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96437190] [2022-12-13 17:55:40,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:40,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:55:40,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:40,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:55:40,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:55:40,414 INFO L87 Difference]: Start difference. First operand 8636 states and 12703 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 17:55:42,971 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 17:55:46,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:46,234 INFO L93 Difference]: Finished difference Result 19307 states and 30000 transitions. [2022-12-13 17:55:46,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:55:46,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 103 [2022-12-13 17:55:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:46,269 INFO L225 Difference]: With dead ends: 19307 [2022-12-13 17:55:46,269 INFO L226 Difference]: Without dead ends: 10683 [2022-12-13 17:55:46,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:55:46,298 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 985 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 512 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:46,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 2900 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 1351 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-12-13 17:55:46,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10683 states. [2022-12-13 17:55:46,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10683 to 8662. [2022-12-13 17:55:46,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8662 states, 6472 states have (on average 1.2955809641532756) internal successors, (8385), 6679 states have internal predecessors, (8385), 1649 states have call successors, (1649), 419 states have call predecessors, (1649), 540 states have return successors, (2695), 1623 states have call predecessors, (2695), 1645 states have call successors, (2695) [2022-12-13 17:55:46,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8662 states to 8662 states and 12729 transitions. [2022-12-13 17:55:46,787 INFO L78 Accepts]: Start accepts. Automaton has 8662 states and 12729 transitions. Word has length 103 [2022-12-13 17:55:46,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:46,787 INFO L495 AbstractCegarLoop]: Abstraction has 8662 states and 12729 transitions. [2022-12-13 17:55:46,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-12-13 17:55:46,788 INFO L276 IsEmpty]: Start isEmpty. Operand 8662 states and 12729 transitions. [2022-12-13 17:55:46,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 17:55:46,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:46,789 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 17:55:46,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:55:46,789 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:46,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:46,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1280303477, now seen corresponding path program 1 times [2022-12-13 17:55:46,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:46,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060729082] [2022-12-13 17:55:46,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:46,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 17:55:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:55:47,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 17:55:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 17:55:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 17:55:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,095 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 17:55:47,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:47,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060729082] [2022-12-13 17:55:47,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060729082] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:47,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444898732] [2022-12-13 17:55:47,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:47,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:47,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:47,097 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:47,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 17:55:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:47,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 2826 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 17:55:47,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:47,750 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 17:55:47,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:47,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444898732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:47,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:47,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-12-13 17:55:47,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484039157] [2022-12-13 17:55:47,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:47,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:55:47,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:47,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:55:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:55:47,753 INFO L87 Difference]: Start difference. First operand 8662 states and 12729 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 17:55:48,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:48,283 INFO L93 Difference]: Finished difference Result 17059 states and 25039 transitions. [2022-12-13 17:55:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:55:48,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2022-12-13 17:55:48,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:48,310 INFO L225 Difference]: With dead ends: 17059 [2022-12-13 17:55:48,310 INFO L226 Difference]: Without dead ends: 8398 [2022-12-13 17:55:48,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:55:48,336 INFO L413 NwaCegarLoop]: 1367 mSDtfsCounter, 13 mSDsluCounter, 4079 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5446 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:48,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5446 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:55:48,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-12-13 17:55:48,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 8350. [2022-12-13 17:55:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8350 states, 6226 states have (on average 1.2934468358496627) internal successors, (8053), 6426 states have internal predecessors, (8053), 1605 states have call successors, (1605), 398 states have call predecessors, (1605), 518 states have return successors, (2578), 1581 states have call predecessors, (2578), 1601 states have call successors, (2578) [2022-12-13 17:55:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8350 states to 8350 states and 12236 transitions. [2022-12-13 17:55:48,699 INFO L78 Accepts]: Start accepts. Automaton has 8350 states and 12236 transitions. Word has length 111 [2022-12-13 17:55:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:48,699 INFO L495 AbstractCegarLoop]: Abstraction has 8350 states and 12236 transitions. [2022-12-13 17:55:48,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 17:55:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8350 states and 12236 transitions. [2022-12-13 17:55:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-13 17:55:48,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:48,700 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:48,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 17:55:48,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:48,901 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:48,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:48,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1299210224, now seen corresponding path program 1 times [2022-12-13 17:55:48,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:48,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043853297] [2022-12-13 17:55:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:48,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:49,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:49,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 17:55:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:49,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:55:49,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:55:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:55:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 17:55:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 17:55:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:55:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 17:55:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:55:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:55:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 17:55:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:55:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:55:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 17:55:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:50,420 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 17:55:50,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:50,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043853297] [2022-12-13 17:55:50,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043853297] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:50,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978127053] [2022-12-13 17:55:50,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:50,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:50,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:50,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:50,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 17:55:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:51,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 2971 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 17:55:51,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:55:51,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:51,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978127053] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:51,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:51,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2022-12-13 17:55:51,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33029208] [2022-12-13 17:55:51,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:51,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:55:51,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:51,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:55:51,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2022-12-13 17:55:51,144 INFO L87 Difference]: Start difference. First operand 8350 states and 12236 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 17:55:51,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:51,483 INFO L93 Difference]: Finished difference Result 8402 states and 12288 transitions. [2022-12-13 17:55:51,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:55:51,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 124 [2022-12-13 17:55:51,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:51,515 INFO L225 Difference]: With dead ends: 8402 [2022-12-13 17:55:51,515 INFO L226 Difference]: Without dead ends: 8376 [2022-12-13 17:55:51,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:55:51,521 INFO L413 NwaCegarLoop]: 1356 mSDtfsCounter, 1353 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 4074 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:51,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 4074 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:55:51,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8376 states. [2022-12-13 17:55:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8376 to 8350. [2022-12-13 17:55:51,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8350 states, 6226 states have (on average 1.292964985544491) internal successors, (8050), 6426 states have internal predecessors, (8050), 1605 states have call successors, (1605), 398 states have call predecessors, (1605), 518 states have return successors, (2578), 1581 states have call predecessors, (2578), 1601 states have call successors, (2578) [2022-12-13 17:55:51,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8350 states to 8350 states and 12233 transitions. [2022-12-13 17:55:51,886 INFO L78 Accepts]: Start accepts. Automaton has 8350 states and 12233 transitions. Word has length 124 [2022-12-13 17:55:51,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:51,886 INFO L495 AbstractCegarLoop]: Abstraction has 8350 states and 12233 transitions. [2022-12-13 17:55:51,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 17:55:51,887 INFO L276 IsEmpty]: Start isEmpty. Operand 8350 states and 12233 transitions. [2022-12-13 17:55:51,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-13 17:55:51,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:51,888 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:51,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 17:55:52,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:52,089 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:52,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:52,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1226178994, now seen corresponding path program 1 times [2022-12-13 17:55:52,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:52,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371357418] [2022-12-13 17:55:52,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:52,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:52,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:55:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:52,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:55:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:55:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:55:53,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:55:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:55:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:55:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:55:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:55:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:55:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:55:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:55:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 17:55:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:55:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 17:55:53,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:53,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371357418] [2022-12-13 17:55:53,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371357418] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:53,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005668528] [2022-12-13 17:55:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:53,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:53,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:53,329 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:53,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 17:55:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:53,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 3048 conjuncts, 21 conjunts are in the unsatisfiable core [2022-12-13 17:55:53,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:53,997 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:55:53,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:53,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005668528] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:53,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:53,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 17:55:53,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79021829] [2022-12-13 17:55:53,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:53,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:55:53,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:53,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:55:53,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:55:53,999 INFO L87 Difference]: Start difference. First operand 8350 states and 12233 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 17:55:54,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:54,309 INFO L93 Difference]: Finished difference Result 14535 states and 21644 transitions. [2022-12-13 17:55:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:55:54,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2022-12-13 17:55:54,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:54,328 INFO L225 Difference]: With dead ends: 14535 [2022-12-13 17:55:54,328 INFO L226 Difference]: Without dead ends: 6233 [2022-12-13 17:55:54,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:55:54,361 INFO L413 NwaCegarLoop]: 1354 mSDtfsCounter, 0 mSDsluCounter, 4055 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5409 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:54,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5409 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:55:54,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6233 states. [2022-12-13 17:55:54,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6233 to 6219. [2022-12-13 17:55:54,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6219 states, 4637 states have (on average 1.2915678240241535) internal successors, (5989), 4785 states have internal predecessors, (5989), 1195 states have call successors, (1195), 300 states have call predecessors, (1195), 386 states have return successors, (1863), 1175 states have call predecessors, (1863), 1191 states have call successors, (1863) [2022-12-13 17:55:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6219 states to 6219 states and 9047 transitions. [2022-12-13 17:55:54,646 INFO L78 Accepts]: Start accepts. Automaton has 6219 states and 9047 transitions. Word has length 130 [2022-12-13 17:55:54,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:54,646 INFO L495 AbstractCegarLoop]: Abstraction has 6219 states and 9047 transitions. [2022-12-13 17:55:54,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-13 17:55:54,647 INFO L276 IsEmpty]: Start isEmpty. Operand 6219 states and 9047 transitions. [2022-12-13 17:55:54,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-13 17:55:54,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:54,649 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:55:54,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 17:55:54,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 17:55:54,850 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:54,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1579318503, now seen corresponding path program 1 times [2022-12-13 17:55:54,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:54,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444316807] [2022-12-13 17:55:54,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:54,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 17:55:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 17:55:55,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 17:55:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 17:55:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 17:55:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 17:55:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 17:55:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 17:55:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 17:55:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 17:55:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 17:55:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:55:55,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:55:55,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-12-13 17:55:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 17:55:55,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444316807] [2022-12-13 17:55:55,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444316807] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695680526] [2022-12-13 17:55:55,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:55,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:55,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:55,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:55,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 17:55:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:56,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 2983 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:55:56,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:55:56,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:55:56,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695680526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:55:56,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:55:56,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2022-12-13 17:55:56,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645016360] [2022-12-13 17:55:56,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:56,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:55:56,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:56,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:55:56,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:55:56,752 INFO L87 Difference]: Start difference. First operand 6219 states and 9047 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 17:55:57,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:55:57,002 INFO L93 Difference]: Finished difference Result 12390 states and 18040 transitions. [2022-12-13 17:55:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:55:57,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 128 [2022-12-13 17:55:57,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:55:57,020 INFO L225 Difference]: With dead ends: 12390 [2022-12-13 17:55:57,021 INFO L226 Difference]: Without dead ends: 6219 [2022-12-13 17:55:57,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:55:57,037 INFO L413 NwaCegarLoop]: 1357 mSDtfsCounter, 21 mSDsluCounter, 2670 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4027 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:55:57,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4027 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:55:57,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6219 states. [2022-12-13 17:55:57,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6219 to 6219. [2022-12-13 17:55:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6219 states, 4637 states have (on average 1.290489540651283) internal successors, (5984), 4785 states have internal predecessors, (5984), 1195 states have call successors, (1195), 300 states have call predecessors, (1195), 386 states have return successors, (1863), 1175 states have call predecessors, (1863), 1191 states have call successors, (1863) [2022-12-13 17:55:57,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6219 states to 6219 states and 9042 transitions. [2022-12-13 17:55:57,310 INFO L78 Accepts]: Start accepts. Automaton has 6219 states and 9042 transitions. Word has length 128 [2022-12-13 17:55:57,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:55:57,310 INFO L495 AbstractCegarLoop]: Abstraction has 6219 states and 9042 transitions. [2022-12-13 17:55:57,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 17:55:57,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6219 states and 9042 transitions. [2022-12-13 17:55:57,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-12-13 17:55:57,312 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:55:57,312 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:57,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 17:55:57,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 17:55:57,514 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:55:57,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:55:57,516 INFO L85 PathProgramCache]: Analyzing trace with hash -264564977, now seen corresponding path program 1 times [2022-12-13 17:55:57,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:55:57,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109264825] [2022-12-13 17:55:57,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:57,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:55:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:55:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:55:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:55:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:55:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:55:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:55:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:55:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:55:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:55:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:55:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:55:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 17:55:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:55:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:55:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-12-13 17:55:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:55:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 17:55:58,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:55:58,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109264825] [2022-12-13 17:55:58,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109264825] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:58,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464113463] [2022-12-13 17:55:58,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:55:58,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:55:58,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:55:58,448 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:55:58,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 17:55:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:55:59,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 3047 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 17:55:59,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:55:59,450 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 17:55:59,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:55:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-12-13 17:55:59,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464113463] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 17:55:59,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:55:59,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 6] total 18 [2022-12-13 17:55:59,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46474591] [2022-12-13 17:55:59,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:55:59,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:55:59,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:55:59,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:55:59,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:55:59,665 INFO L87 Difference]: Start difference. First operand 6219 states and 9042 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 17:56:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:02,184 INFO L93 Difference]: Finished difference Result 10394 states and 15580 transitions. [2022-12-13 17:56:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:56:02,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 130 [2022-12-13 17:56:02,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:02,213 INFO L225 Difference]: With dead ends: 10394 [2022-12-13 17:56:02,214 INFO L226 Difference]: Without dead ends: 10389 [2022-12-13 17:56:02,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 283 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2022-12-13 17:56:02,220 INFO L413 NwaCegarLoop]: 2112 mSDtfsCounter, 4057 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 691 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4057 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 691 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:02,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4057 Valid, 2824 Invalid, 1339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [691 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 17:56:02,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10389 states. [2022-12-13 17:56:02,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10389 to 10363. [2022-12-13 17:56:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10363 states, 7721 states have (on average 1.2901178603807797) internal successors, (9961), 7967 states have internal predecessors, (9961), 1997 states have call successors, (1997), 494 states have call predecessors, (1997), 644 states have return successors, (3586), 1971 states have call predecessors, (3586), 1993 states have call successors, (3586) [2022-12-13 17:56:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10363 states to 10363 states and 15544 transitions. [2022-12-13 17:56:02,674 INFO L78 Accepts]: Start accepts. Automaton has 10363 states and 15544 transitions. Word has length 130 [2022-12-13 17:56:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:02,674 INFO L495 AbstractCegarLoop]: Abstraction has 10363 states and 15544 transitions. [2022-12-13 17:56:02,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 17:56:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 10363 states and 15544 transitions. [2022-12-13 17:56:02,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 17:56:02,676 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:02,676 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:02,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 17:56:02,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 17:56:02,878 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:02,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:02,879 INFO L85 PathProgramCache]: Analyzing trace with hash 495827447, now seen corresponding path program 1 times [2022-12-13 17:56:02,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:02,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4059846] [2022-12-13 17:56:02,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:02,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:56:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:56:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:56:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:56:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:56:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:56:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:56:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:56:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:56:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:56:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 17:56:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:56:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:56:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 17:56:03,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:03,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4059846] [2022-12-13 17:56:03,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4059846] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:56:03,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013576160] [2022-12-13 17:56:03,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:03,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:03,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:56:03,773 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:56:03,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 17:56:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:04,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 3138 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 17:56:04,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:56:04,520 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 17:56:04,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:56:04,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013576160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:04,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:56:04,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2022-12-13 17:56:04,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735724375] [2022-12-13 17:56:04,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:04,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:56:04,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:04,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:56:04,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2022-12-13 17:56:04,523 INFO L87 Difference]: Start difference. First operand 10363 states and 15544 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:05,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:05,435 INFO L93 Difference]: Finished difference Result 25588 states and 40410 transitions. [2022-12-13 17:56:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:56:05,436 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 147 [2022-12-13 17:56:05,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:05,498 INFO L225 Difference]: With dead ends: 25588 [2022-12-13 17:56:05,498 INFO L226 Difference]: Without dead ends: 15273 [2022-12-13 17:56:05,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2022-12-13 17:56:05,566 INFO L413 NwaCegarLoop]: 1993 mSDtfsCounter, 909 mSDsluCounter, 4848 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 6841 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:05,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 6841 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:56:05,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15273 states. [2022-12-13 17:56:06,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15273 to 10403. [2022-12-13 17:56:06,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10403 states, 7751 states have (on average 1.2889949683911752) internal successors, (9991), 7997 states have internal predecessors, (9991), 2007 states have call successors, (2007), 494 states have call predecessors, (2007), 644 states have return successors, (3596), 1981 states have call predecessors, (3596), 2003 states have call successors, (3596) [2022-12-13 17:56:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10403 states to 10403 states and 15594 transitions. [2022-12-13 17:56:06,122 INFO L78 Accepts]: Start accepts. Automaton has 10403 states and 15594 transitions. Word has length 147 [2022-12-13 17:56:06,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:06,122 INFO L495 AbstractCegarLoop]: Abstraction has 10403 states and 15594 transitions. [2022-12-13 17:56:06,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:06,123 INFO L276 IsEmpty]: Start isEmpty. Operand 10403 states and 15594 transitions. [2022-12-13 17:56:06,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 17:56:06,124 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:06,124 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:06,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 17:56:06,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:06,326 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:06,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:06,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1870867147, now seen corresponding path program 1 times [2022-12-13 17:56:06,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:06,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114925818] [2022-12-13 17:56:06,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:06,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:56:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:06,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:56:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:56:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:56:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:56:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:56:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:56:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:56:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:56:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:56:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 17:56:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:56:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:56:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,168 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-12-13 17:56:07,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:07,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114925818] [2022-12-13 17:56:07,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114925818] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:56:07,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368905758] [2022-12-13 17:56:07,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:07,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:07,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:56:07,169 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:56:07,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 17:56:07,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:07,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 3131 conjuncts, 49 conjunts are in the unsatisfiable core [2022-12-13 17:56:07,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:56:08,026 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 17:56:08,026 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:56:08,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368905758] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:08,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:56:08,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 12 [2022-12-13 17:56:08,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434248661] [2022-12-13 17:56:08,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:08,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 17:56:08,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:08,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 17:56:08,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-12-13 17:56:08,028 INFO L87 Difference]: Start difference. First operand 10403 states and 15594 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 17:56:08,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:08,610 INFO L93 Difference]: Finished difference Result 20736 states and 32045 transitions. [2022-12-13 17:56:08,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 17:56:08,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) Word has length 147 [2022-12-13 17:56:08,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:08,642 INFO L225 Difference]: With dead ends: 20736 [2022-12-13 17:56:08,642 INFO L226 Difference]: Without dead ends: 10365 [2022-12-13 17:56:08,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-12-13 17:56:08,686 INFO L413 NwaCegarLoop]: 1355 mSDtfsCounter, 4 mSDsluCounter, 10800 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12155 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:08,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12155 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 17:56:08,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10365 states. [2022-12-13 17:56:09,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10365 to 10344. [2022-12-13 17:56:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10344 states, 7710 states have (on average 1.2858625162127109) internal successors, (9914), 7937 states have internal predecessors, (9914), 1987 states have call successors, (1987), 489 states have call predecessors, (1987), 646 states have return successors, (3586), 1987 states have call predecessors, (3586), 1983 states have call successors, (3586) [2022-12-13 17:56:09,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10344 states to 10344 states and 15487 transitions. [2022-12-13 17:56:09,150 INFO L78 Accepts]: Start accepts. Automaton has 10344 states and 15487 transitions. Word has length 147 [2022-12-13 17:56:09,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:09,150 INFO L495 AbstractCegarLoop]: Abstraction has 10344 states and 15487 transitions. [2022-12-13 17:56:09,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 7 states have internal predecessors, (101), 2 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 17:56:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 10344 states and 15487 transitions. [2022-12-13 17:56:09,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 17:56:09,152 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:09,152 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:09,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 17:56:09,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:09,354 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:09,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:09,355 INFO L85 PathProgramCache]: Analyzing trace with hash -644621356, now seen corresponding path program 1 times [2022-12-13 17:56:09,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:09,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778578810] [2022-12-13 17:56:09,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:09,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:56:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:56:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:56:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:56:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:56:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:56:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:56:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:56:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:56:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:56:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 17:56:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:56:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:56:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:56:09,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:09,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778578810] [2022-12-13 17:56:09,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778578810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:09,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:56:09,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:56:09,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60899172] [2022-12-13 17:56:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:09,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:56:09,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:09,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:56:09,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:56:09,972 INFO L87 Difference]: Start difference. First operand 10344 states and 15487 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:14,590 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 17:56:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:16,373 INFO L93 Difference]: Finished difference Result 24068 states and 38569 transitions. [2022-12-13 17:56:16,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:56:16,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 147 [2022-12-13 17:56:16,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:16,419 INFO L225 Difference]: With dead ends: 24068 [2022-12-13 17:56:16,419 INFO L226 Difference]: Without dead ends: 13772 [2022-12-13 17:56:16,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:56:16,468 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 768 mSDsluCounter, 2582 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 238 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 4033 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:16,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 4033 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1426 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-12-13 17:56:16,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13772 states. [2022-12-13 17:56:16,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13772 to 10616. [2022-12-13 17:56:16,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10616 states, 7886 states have (on average 1.2832868374334263) internal successors, (10120), 8121 states have internal predecessors, (10120), 2061 states have call successors, (2061), 489 states have call predecessors, (2061), 668 states have return successors, (3892), 2075 states have call predecessors, (3892), 2057 states have call successors, (3892) [2022-12-13 17:56:17,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10616 states to 10616 states and 16073 transitions. [2022-12-13 17:56:17,083 INFO L78 Accepts]: Start accepts. Automaton has 10616 states and 16073 transitions. Word has length 147 [2022-12-13 17:56:17,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:17,083 INFO L495 AbstractCegarLoop]: Abstraction has 10616 states and 16073 transitions. [2022-12-13 17:56:17,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:17,083 INFO L276 IsEmpty]: Start isEmpty. Operand 10616 states and 16073 transitions. [2022-12-13 17:56:17,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-12-13 17:56:17,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:17,085 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:17,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 17:56:17,085 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:17,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:17,085 INFO L85 PathProgramCache]: Analyzing trace with hash 846054232, now seen corresponding path program 1 times [2022-12-13 17:56:17,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:17,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693645616] [2022-12-13 17:56:17,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:17,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:56:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:56:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:56:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:56:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:56:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:56:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:56:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:56:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:56:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:56:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 17:56:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:56:17,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:56:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:56:17,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:17,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693645616] [2022-12-13 17:56:17,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693645616] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:17,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:56:17,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:56:17,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314112451] [2022-12-13 17:56:17,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:17,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:56:17,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:17,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:56:17,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:56:17,890 INFO L87 Difference]: Start difference. First operand 10616 states and 16073 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:22,408 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 17:56:24,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:24,718 INFO L93 Difference]: Finished difference Result 24372 states and 39165 transitions. [2022-12-13 17:56:24,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:56:24,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 147 [2022-12-13 17:56:24,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:24,770 INFO L225 Difference]: With dead ends: 24372 [2022-12-13 17:56:24,770 INFO L226 Difference]: Without dead ends: 13804 [2022-12-13 17:56:24,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:56:24,826 INFO L413 NwaCegarLoop]: 1458 mSDtfsCounter, 1382 mSDsluCounter, 4225 mSDsCounter, 0 mSdLazyCounter, 2003 mSolverCounterSat, 636 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 5683 SdHoareTripleChecker+Invalid, 2640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 2003 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:24,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 5683 Invalid, 2640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [636 Valid, 2003 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-13 17:56:24,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13804 states. [2022-12-13 17:56:25,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13804 to 10646. [2022-12-13 17:56:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10646 states, 7916 states have (on average 1.2822132390096008) internal successors, (10150), 8151 states have internal predecessors, (10150), 2061 states have call successors, (2061), 489 states have call predecessors, (2061), 668 states have return successors, (3892), 2075 states have call predecessors, (3892), 2057 states have call successors, (3892) [2022-12-13 17:56:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10646 states to 10646 states and 16103 transitions. [2022-12-13 17:56:25,468 INFO L78 Accepts]: Start accepts. Automaton has 10646 states and 16103 transitions. Word has length 147 [2022-12-13 17:56:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:25,468 INFO L495 AbstractCegarLoop]: Abstraction has 10646 states and 16103 transitions. [2022-12-13 17:56:25,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 10646 states and 16103 transitions. [2022-12-13 17:56:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-13 17:56:25,470 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:25,471 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:25,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 17:56:25,471 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:25,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:25,471 INFO L85 PathProgramCache]: Analyzing trace with hash -483021765, now seen corresponding path program 1 times [2022-12-13 17:56:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:25,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815043159] [2022-12-13 17:56:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:25,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:56:25,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:56:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:56:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:56:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:56:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:56:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:56:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:56:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:56:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:56:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 17:56:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:56:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:56:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:25,801 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:56:25,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:25,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815043159] [2022-12-13 17:56:25,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815043159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:25,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:56:25,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:56:25,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059488008] [2022-12-13 17:56:25,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:25,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:56:25,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:25,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:56:25,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:56:25,802 INFO L87 Difference]: Start difference. First operand 10646 states and 16103 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:30,475 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 17:56:32,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:32,973 INFO L93 Difference]: Finished difference Result 26772 states and 43264 transitions. [2022-12-13 17:56:32,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:56:32,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 158 [2022-12-13 17:56:32,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:33,035 INFO L225 Difference]: With dead ends: 26772 [2022-12-13 17:56:33,035 INFO L226 Difference]: Without dead ends: 16174 [2022-12-13 17:56:33,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:56:33,094 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 1742 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 696 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 6342 SdHoareTripleChecker+Invalid, 2800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:33,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 6342 Invalid, 2800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2103 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-12-13 17:56:33,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16174 states. [2022-12-13 17:56:33,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16174 to 10676. [2022-12-13 17:56:33,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10676 states, 7946 states have (on average 1.281147747294236) internal successors, (10180), 8181 states have internal predecessors, (10180), 2061 states have call successors, (2061), 489 states have call predecessors, (2061), 668 states have return successors, (3892), 2075 states have call predecessors, (3892), 2057 states have call successors, (3892) [2022-12-13 17:56:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10676 states to 10676 states and 16133 transitions. [2022-12-13 17:56:33,826 INFO L78 Accepts]: Start accepts. Automaton has 10676 states and 16133 transitions. Word has length 158 [2022-12-13 17:56:33,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:33,826 INFO L495 AbstractCegarLoop]: Abstraction has 10676 states and 16133 transitions. [2022-12-13 17:56:33,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:33,826 INFO L276 IsEmpty]: Start isEmpty. Operand 10676 states and 16133 transitions. [2022-12-13 17:56:33,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 17:56:33,828 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:33,828 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:33,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 17:56:33,829 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:33,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:33,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1950436359, now seen corresponding path program 1 times [2022-12-13 17:56:33,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:33,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436908377] [2022-12-13 17:56:33,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:33,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:56:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:56:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:56:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:56:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:56:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:56:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:56:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:56:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:56:34,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:56:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 17:56:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:56:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:56:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:34,167 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:56:34,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:34,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436908377] [2022-12-13 17:56:34,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436908377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:34,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:56:34,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:56:34,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125392582] [2022-12-13 17:56:34,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:34,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 17:56:34,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:34,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 17:56:34,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:56:34,169 INFO L87 Difference]: Start difference. First operand 10676 states and 16133 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:38,927 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 17:56:41,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:41,062 INFO L93 Difference]: Finished difference Result 24672 states and 39583 transitions. [2022-12-13 17:56:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:56:41,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 159 [2022-12-13 17:56:41,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:41,116 INFO L225 Difference]: With dead ends: 24672 [2022-12-13 17:56:41,116 INFO L226 Difference]: Without dead ends: 14044 [2022-12-13 17:56:41,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:56:41,172 INFO L413 NwaCegarLoop]: 1482 mSDtfsCounter, 742 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 237 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 4158 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:41,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 4158 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1441 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-12-13 17:56:41,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14044 states. [2022-12-13 17:56:41,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14044 to 10686. [2022-12-13 17:56:41,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10686 states, 7956 states have (on average 1.280794369029663) internal successors, (10190), 8191 states have internal predecessors, (10190), 2061 states have call successors, (2061), 489 states have call predecessors, (2061), 668 states have return successors, (3892), 2075 states have call predecessors, (3892), 2057 states have call successors, (3892) [2022-12-13 17:56:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10686 states to 10686 states and 16143 transitions. [2022-12-13 17:56:41,940 INFO L78 Accepts]: Start accepts. Automaton has 10686 states and 16143 transitions. Word has length 159 [2022-12-13 17:56:41,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:41,940 INFO L495 AbstractCegarLoop]: Abstraction has 10686 states and 16143 transitions. [2022-12-13 17:56:41,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 17:56:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 10686 states and 16143 transitions. [2022-12-13 17:56:41,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 17:56:41,942 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:41,942 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:41,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 17:56:41,943 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:41,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:41,943 INFO L85 PathProgramCache]: Analyzing trace with hash -22163657, now seen corresponding path program 1 times [2022-12-13 17:56:41,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:41,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288015760] [2022-12-13 17:56:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:41,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:56:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:56:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:56:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:56:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:56:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:56:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:56:43,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:56:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:56:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:56:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 17:56:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:56:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:56:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 17:56:43,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:43,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288015760] [2022-12-13 17:56:43,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288015760] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:56:43,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685195021] [2022-12-13 17:56:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:43,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:43,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:56:43,461 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:56:43,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 17:56:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:44,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 3259 conjuncts, 42 conjunts are in the unsatisfiable core [2022-12-13 17:56:44,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:56:44,641 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:56:44,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 17:56:44,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 17:56:44,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 17:56:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 17:56:44,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:56:44,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685195021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:44,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:56:44,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [18] total 28 [2022-12-13 17:56:44,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413663005] [2022-12-13 17:56:44,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:44,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 17:56:44,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:44,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 17:56:44,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2022-12-13 17:56:44,763 INFO L87 Difference]: Start difference. First operand 10686 states and 16143 transitions. Second operand has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 10 states have internal predecessors, (113), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 17:56:49,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 17:56:51,859 WARN L539 Checker$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 17:56:53,863 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 17:56:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:56:55,099 INFO L93 Difference]: Finished difference Result 21348 states and 32268 transitions. [2022-12-13 17:56:55,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 17:56:55,100 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 10 states have internal predecessors, (113), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) Word has length 159 [2022-12-13 17:56:55,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:56:55,140 INFO L225 Difference]: With dead ends: 21348 [2022-12-13 17:56:55,140 INFO L226 Difference]: Without dead ends: 10710 [2022-12-13 17:56:55,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 17:56:55,176 INFO L413 NwaCegarLoop]: 1332 mSDtfsCounter, 67 mSDsluCounter, 4967 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 42 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 6299 SdHoareTripleChecker+Invalid, 1039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-12-13 17:56:55,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 6299 Invalid, 1039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 994 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2022-12-13 17:56:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10710 states. [2022-12-13 17:56:55,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10710 to 10705. [2022-12-13 17:56:55,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10705 states, 7970 states have (on average 1.2806775407779172) internal successors, (10207), 8205 states have internal predecessors, (10207), 2064 states have call successors, (2064), 491 states have call predecessors, (2064), 670 states have return successors, (3895), 2078 states have call predecessors, (3895), 2060 states have call successors, (3895) [2022-12-13 17:56:55,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10705 states to 10705 states and 16166 transitions. [2022-12-13 17:56:55,874 INFO L78 Accepts]: Start accepts. Automaton has 10705 states and 16166 transitions. Word has length 159 [2022-12-13 17:56:55,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:56:55,874 INFO L495 AbstractCegarLoop]: Abstraction has 10705 states and 16166 transitions. [2022-12-13 17:56:55,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.071428571428571) internal successors, (113), 10 states have internal predecessors, (113), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (16), 6 states have call predecessors, (16), 4 states have call successors, (16) [2022-12-13 17:56:55,875 INFO L276 IsEmpty]: Start isEmpty. Operand 10705 states and 16166 transitions. [2022-12-13 17:56:55,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 17:56:55,877 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:56:55,877 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:56:55,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 17:56:56,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:56,079 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:56:56,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:56:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash 2130943161, now seen corresponding path program 1 times [2022-12-13 17:56:56,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:56:56,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907451531] [2022-12-13 17:56:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:56,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:56:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:56:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:56:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:56:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:56:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:56:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:56:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:56:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:56:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:56:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:56:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:56:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:56:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 17:56:57,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:56:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:56:57,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 17:56:57,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:56:57,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907451531] [2022-12-13 17:56:57,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907451531] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:56:57,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128761076] [2022-12-13 17:56:57,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:56:57,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:56:57,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:56:57,782 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:56:57,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 17:56:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:56:58,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 3260 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-13 17:56:58,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:56:58,800 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:56:58,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 17:56:59,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:56:59,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:56:59,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:56:59,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:56:59,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:56:59,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 17:56:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 17:56:59,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:56:59,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128761076] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:56:59,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 17:56:59,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [19] total 34 [2022-12-13 17:56:59,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692765402] [2022-12-13 17:56:59,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:56:59,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-12-13 17:56:59,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:56:59,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-12-13 17:56:59,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1028, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 17:56:59,134 INFO L87 Difference]: Start difference. First operand 10705 states and 16166 transitions. Second operand has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 13 states have internal predecessors, (113), 5 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2022-12-13 17:57:16,199 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 17:57:30,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:57:30,075 INFO L93 Difference]: Finished difference Result 55755 states and 90247 transitions. [2022-12-13 17:57:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-13 17:57:30,076 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 13 states have internal predecessors, (113), 5 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 159 [2022-12-13 17:57:30,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:57:30,242 INFO L225 Difference]: With dead ends: 55755 [2022-12-13 17:57:30,242 INFO L226 Difference]: Without dead ends: 45117 [2022-12-13 17:57:30,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=413, Invalid=4417, Unknown=0, NotChecked=0, Total=4830 [2022-12-13 17:57:30,306 INFO L413 NwaCegarLoop]: 1694 mSDtfsCounter, 3906 mSDsluCounter, 15467 mSDsCounter, 0 mSdLazyCounter, 19791 mSolverCounterSat, 1234 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4191 SdHoareTripleChecker+Valid, 17161 SdHoareTripleChecker+Invalid, 21026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1234 IncrementalHoareTripleChecker+Valid, 19791 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:57:30,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4191 Valid, 17161 Invalid, 21026 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1234 Valid, 19791 Invalid, 1 Unknown, 0 Unchecked, 26.8s Time] [2022-12-13 17:57:30,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45117 states. [2022-12-13 17:57:33,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45117 to 41431. [2022-12-13 17:57:33,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41431 states, 31208 states have (on average 1.281658549089977) internal successors, (39998), 32214 states have internal predecessors, (39998), 7338 states have call successors, (7338), 2096 states have call predecessors, (7338), 2884 states have return successors, (17454), 7316 states have call predecessors, (17454), 7334 states have call successors, (17454) [2022-12-13 17:57:33,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41431 states to 41431 states and 64790 transitions. [2022-12-13 17:57:33,382 INFO L78 Accepts]: Start accepts. Automaton has 41431 states and 64790 transitions. Word has length 159 [2022-12-13 17:57:33,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:57:33,383 INFO L495 AbstractCegarLoop]: Abstraction has 41431 states and 64790 transitions. [2022-12-13 17:57:33,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.647058823529412) internal successors, (113), 13 states have internal predecessors, (113), 5 states have call successors, (20), 5 states have call predecessors, (20), 7 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2022-12-13 17:57:33,383 INFO L276 IsEmpty]: Start isEmpty. Operand 41431 states and 64790 transitions. [2022-12-13 17:57:33,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 17:57:33,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:57:33,386 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:57:33,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 17:57:33,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:57:33,588 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:57:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:57:33,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1210083977, now seen corresponding path program 1 times [2022-12-13 17:57:33,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:57:33,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231641977] [2022-12-13 17:57:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:57:33,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:57:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:57:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:57:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:57:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:57:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:57:35,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:57:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:57:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:57:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:57:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:57:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:57:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:57:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:57:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 17:57:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:57:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:57:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:35,428 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 17:57:35,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:57:35,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231641977] [2022-12-13 17:57:35,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231641977] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:57:35,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714551617] [2022-12-13 17:57:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:57:35,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:57:35,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:57:35,430 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:57:35,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 17:57:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:57:36,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 3261 conjuncts, 50 conjunts are in the unsatisfiable core [2022-12-13 17:57:36,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:57:36,714 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:57:36,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 17:57:37,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:57:37,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 17:57:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 17:57:37,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:57:37,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714551617] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:57:37,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:57:37,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 36 [2022-12-13 17:57:37,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396788526] [2022-12-13 17:57:37,354 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:57:37,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-13 17:57:37,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:57:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-13 17:57:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1203, Unknown=10, NotChecked=0, Total=1332 [2022-12-13 17:57:37,356 INFO L87 Difference]: Start difference. First operand 41431 states and 64790 transitions. Second operand has 36 states, 36 states have (on average 5.972222222222222) internal successors, (215), 27 states have internal predecessors, (215), 14 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (32), 16 states have call predecessors, (32), 13 states have call successors, (32) [2022-12-13 17:58:04,101 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 17:58:29,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:58:29,578 INFO L93 Difference]: Finished difference Result 113662 states and 204241 transitions. [2022-12-13 17:58:29,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-12-13 17:58:29,579 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.972222222222222) internal successors, (215), 27 states have internal predecessors, (215), 14 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (32), 16 states have call predecessors, (32), 13 states have call successors, (32) Word has length 159 [2022-12-13 17:58:29,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:58:30,014 INFO L225 Difference]: With dead ends: 113662 [2022-12-13 17:58:30,015 INFO L226 Difference]: Without dead ends: 72363 [2022-12-13 17:58:30,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1135, Invalid=12195, Unknown=10, NotChecked=0, Total=13340 [2022-12-13 17:58:30,199 INFO L413 NwaCegarLoop]: 1500 mSDtfsCounter, 12646 mSDsluCounter, 21341 mSDsCounter, 0 mSdLazyCounter, 36905 mSolverCounterSat, 5648 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12895 SdHoareTripleChecker+Valid, 22841 SdHoareTripleChecker+Invalid, 42554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5648 IncrementalHoareTripleChecker+Valid, 36905 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2022-12-13 17:58:30,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12895 Valid, 22841 Invalid, 42554 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5648 Valid, 36905 Invalid, 1 Unknown, 0 Unchecked, 43.7s Time] [2022-12-13 17:58:30,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72363 states. [2022-12-13 17:58:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72363 to 63957. [2022-12-13 17:58:35,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63957 states, 48554 states have (on average 1.2817687523170078) internal successors, (62235), 50072 states have internal predecessors, (62235), 10532 states have call successors, (10532), 3511 states have call predecessors, (10532), 4870 states have return successors, (34204), 10661 states have call predecessors, (34204), 10528 states have call successors, (34204) [2022-12-13 17:58:35,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63957 states to 63957 states and 106971 transitions. [2022-12-13 17:58:35,614 INFO L78 Accepts]: Start accepts. Automaton has 63957 states and 106971 transitions. Word has length 159 [2022-12-13 17:58:35,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:58:35,615 INFO L495 AbstractCegarLoop]: Abstraction has 63957 states and 106971 transitions. [2022-12-13 17:58:35,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.972222222222222) internal successors, (215), 27 states have internal predecessors, (215), 14 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (32), 16 states have call predecessors, (32), 13 states have call successors, (32) [2022-12-13 17:58:35,615 INFO L276 IsEmpty]: Start isEmpty. Operand 63957 states and 106971 transitions. [2022-12-13 17:58:35,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-13 17:58:35,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:58:35,620 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:58:35,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 17:58:35,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-13 17:58:35,821 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:58:35,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:58:35,822 INFO L85 PathProgramCache]: Analyzing trace with hash 58235728, now seen corresponding path program 1 times [2022-12-13 17:58:35,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:58:35,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672745675] [2022-12-13 17:58:35,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:35,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:58:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:58:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:58:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:58:37,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:58:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:58:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 17:58:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 17:58:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 17:58:37,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 17:58:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 17:58:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 17:58:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 17:58:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 17:58:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 17:58:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:58:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:58:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:37,739 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 17:58:37,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:58:37,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672745675] [2022-12-13 17:58:37,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672745675] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:58:37,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964143358] [2022-12-13 17:58:37,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:58:37,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 17:58:37,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:58:37,740 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 17:58:37,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 17:58:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:58:38,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 3276 conjuncts, 56 conjunts are in the unsatisfiable core [2022-12-13 17:58:38,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:58:38,798 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 17:58:38,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 17:58:39,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 17:58:39,295 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-13 17:58:39,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2022-12-13 17:58:39,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 17:58:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 17:58:39,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 17:58:39,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964143358] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 17:58:39,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 17:58:39,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18] total 38 [2022-12-13 17:58:39,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608626388] [2022-12-13 17:58:39,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 17:58:39,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-12-13 17:58:39,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:58:39,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-12-13 17:58:39,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1416, Unknown=18, NotChecked=0, Total=1560 [2022-12-13 17:58:39,850 INFO L87 Difference]: Start difference. First operand 63957 states and 106971 transitions. Second operand has 38 states, 38 states have (on average 5.315789473684211) internal successors, (202), 30 states have internal predecessors, (202), 14 states have call successors, (37), 9 states have call predecessors, (37), 10 states have return successors, (32), 16 states have call predecessors, (32), 13 states have call successors, (32) [2022-12-13 17:59:09,551 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 17:59:40,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:59:40,032 INFO L93 Difference]: Finished difference Result 161856 states and 319993 transitions. [2022-12-13 17:59:40,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-12-13 17:59:40,032 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.315789473684211) internal successors, (202), 30 states have internal predecessors, (202), 14 states have call successors, (37), 9 states have call predecessors, (37), 10 states have return successors, (32), 16 states have call predecessors, (32), 13 states have call successors, (32) Word has length 160 [2022-12-13 17:59:40,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:59:40,917 INFO L225 Difference]: With dead ends: 161856 [2022-12-13 17:59:40,917 INFO L226 Difference]: Without dead ends: 98356 [2022-12-13 17:59:41,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 247 SyntacticMatches, 2 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4602 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1213, Invalid=13527, Unknown=22, NotChecked=0, Total=14762 [2022-12-13 17:59:41,277 INFO L413 NwaCegarLoop]: 1570 mSDtfsCounter, 10380 mSDsluCounter, 22548 mSDsCounter, 0 mSdLazyCounter, 36843 mSolverCounterSat, 4548 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10615 SdHoareTripleChecker+Valid, 24118 SdHoareTripleChecker+Invalid, 41392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4548 IncrementalHoareTripleChecker+Valid, 36843 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.8s IncrementalHoareTripleChecker+Time [2022-12-13 17:59:41,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10615 Valid, 24118 Invalid, 41392 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4548 Valid, 36843 Invalid, 1 Unknown, 0 Unchecked, 48.8s Time] [2022-12-13 17:59:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98356 states. [2022-12-13 17:59:49,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98356 to 85902. [2022-12-13 17:59:49,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85902 states, 65359 states have (on average 1.2815985556694565) internal successors, (83764), 67388 states have internal predecessors, (83764), 13690 states have call successors, (13690), 4926 states have call predecessors, (13690), 6852 states have return successors, (55985), 13967 states have call predecessors, (55985), 13686 states have call successors, (55985) [2022-12-13 17:59:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85902 states to 85902 states and 153439 transitions. [2022-12-13 17:59:50,265 INFO L78 Accepts]: Start accepts. Automaton has 85902 states and 153439 transitions. Word has length 160 [2022-12-13 17:59:50,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:59:50,265 INFO L495 AbstractCegarLoop]: Abstraction has 85902 states and 153439 transitions. [2022-12-13 17:59:50,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.315789473684211) internal successors, (202), 30 states have internal predecessors, (202), 14 states have call successors, (37), 9 states have call predecessors, (37), 10 states have return successors, (32), 16 states have call predecessors, (32), 13 states have call successors, (32) [2022-12-13 17:59:50,266 INFO L276 IsEmpty]: Start isEmpty. Operand 85902 states and 153439 transitions. [2022-12-13 17:59:50,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-12-13 17:59:50,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:59:50,278 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:59:50,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 17:59:50,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-13 17:59:50,480 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:59:50,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:59:50,481 INFO L85 PathProgramCache]: Analyzing trace with hash -503808518, now seen corresponding path program 1 times [2022-12-13 17:59:50,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:59:50,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241871821] [2022-12-13 17:59:50,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:59:50,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:59:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 17:59:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 17:59:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:59:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 17:59:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 17:59:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 17:59:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-12-13 17:59:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-12-13 17:59:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 17:59:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 17:59:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-12-13 17:59:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-12-13 17:59:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 17:59:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-12-13 17:59:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 17:59:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:59:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 17:59:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:59:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 17:59:50,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:59:50,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241871821] [2022-12-13 17:59:50,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241871821] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:59:50,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:59:50,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:59:50,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781139499] [2022-12-13 17:59:50,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:59:50,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 17:59:50,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:59:50,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 17:59:50,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 17:59:50,964 INFO L87 Difference]: Start difference. First operand 85902 states and 153439 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 17:59:56,727 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 18:00:08,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:08,055 INFO L93 Difference]: Finished difference Result 180389 states and 386021 transitions. [2022-12-13 18:00:08,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:00:08,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 162 [2022-12-13 18:00:08,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:08,851 INFO L225 Difference]: With dead ends: 180389 [2022-12-13 18:00:08,851 INFO L226 Difference]: Without dead ends: 94684 [2022-12-13 18:00:09,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:00:09,518 INFO L413 NwaCegarLoop]: 1045 mSDtfsCounter, 982 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 574 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 4421 SdHoareTripleChecker+Invalid, 3182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:09,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1028 Valid, 4421 Invalid, 3182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 2607 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-12-13 18:00:09,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94684 states. [2022-12-13 18:00:16,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94684 to 86207. [2022-12-13 18:00:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86207 states, 65544 states have (on average 1.2812461857683388) internal successors, (83978), 67572 states have internal predecessors, (83978), 13760 states have call successors, (13760), 4941 states have call predecessors, (13760), 6902 states have return successors, (56670), 14068 states have call predecessors, (56670), 13756 states have call successors, (56670) [2022-12-13 18:00:17,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86207 states to 86207 states and 154408 transitions. [2022-12-13 18:00:17,466 INFO L78 Accepts]: Start accepts. Automaton has 86207 states and 154408 transitions. Word has length 162 [2022-12-13 18:00:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:17,466 INFO L495 AbstractCegarLoop]: Abstraction has 86207 states and 154408 transitions. [2022-12-13 18:00:17,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 18:00:17,467 INFO L276 IsEmpty]: Start isEmpty. Operand 86207 states and 154408 transitions. [2022-12-13 18:00:17,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 18:00:17,472 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:17,472 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:17,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 18:00:17,472 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:17,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:17,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1314102091, now seen corresponding path program 1 times [2022-12-13 18:00:17,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:17,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764617131] [2022-12-13 18:00:17,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:17,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 18:00:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:00:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:00:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:00:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 18:00:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 18:00:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 18:00:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 18:00:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 18:00:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 18:00:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 18:00:17,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 18:00:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 18:00:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 18:00:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 18:00:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:00:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 18:00:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 18:00:17,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:17,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764617131] [2022-12-13 18:00:17,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764617131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:17,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:17,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 18:00:17,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388868455] [2022-12-13 18:00:17,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:17,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:00:17,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:17,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:00:17,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:00:17,829 INFO L87 Difference]: Start difference. First operand 86207 states and 154408 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 18:00:23,374 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 18:00:34,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:34,127 INFO L93 Difference]: Finished difference Result 180769 states and 387005 transitions. [2022-12-13 18:00:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:00:34,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 163 [2022-12-13 18:00:34,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:34,921 INFO L225 Difference]: With dead ends: 180769 [2022-12-13 18:00:34,921 INFO L226 Difference]: Without dead ends: 94759 [2022-12-13 18:00:35,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:00:35,775 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 1007 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 579 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 4344 SdHoareTripleChecker+Invalid, 3159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:35,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 4344 Invalid, 3159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 2579 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-12-13 18:00:35,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94759 states. [2022-12-13 18:00:42,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94759 to 86282. [2022-12-13 18:00:42,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86282 states, 65604 states have (on average 1.2809889640875556) internal successors, (84038), 67632 states have internal predecessors, (84038), 13760 states have call successors, (13760), 4956 states have call predecessors, (13760), 6917 states have return successors, (56670), 14068 states have call predecessors, (56670), 13756 states have call successors, (56670) [2022-12-13 18:00:43,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86282 states to 86282 states and 154468 transitions. [2022-12-13 18:00:43,674 INFO L78 Accepts]: Start accepts. Automaton has 86282 states and 154468 transitions. Word has length 163 [2022-12-13 18:00:43,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:43,674 INFO L495 AbstractCegarLoop]: Abstraction has 86282 states and 154468 transitions. [2022-12-13 18:00:43,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-12-13 18:00:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 86282 states and 154468 transitions. [2022-12-13 18:00:43,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 18:00:43,680 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:43,680 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:43,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-12-13 18:00:43,680 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:43,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1490316608, now seen corresponding path program 1 times [2022-12-13 18:00:43,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:43,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208962315] [2022-12-13 18:00:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:43,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 18:00:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:00:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:00:45,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:00:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 18:00:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 18:00:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-12-13 18:00:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 18:00:45,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 18:00:45,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 18:00:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 18:00:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 18:00:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 18:00:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 18:00:45,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 18:00:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:00:45,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 18:00:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-13 18:00:45,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:45,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208962315] [2022-12-13 18:00:45,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208962315] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:00:45,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248279039] [2022-12-13 18:00:45,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:45,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:45,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:45,695 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:45,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 18:00:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:46,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 3310 conjuncts, 65 conjunts are in the unsatisfiable core [2022-12-13 18:00:46,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:47,011 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 18:00:47,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 18:00:47,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-13 18:00:47,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 18:00:47,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 18:00:47,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 18:00:47,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 18:00:47,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 18:00:47,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 18:00:47,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 18:00:47,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-13 18:00:47,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 18:00:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 18:00:47,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:00:47,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248279039] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:00:47,870 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:00:47,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 37 [2022-12-13 18:00:47,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501863649] [2022-12-13 18:00:47,870 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:00:47,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-12-13 18:00:47,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:47,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-12-13 18:00:47,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1330, Unknown=29, NotChecked=0, Total=1482 [2022-12-13 18:00:47,872 INFO L87 Difference]: Start difference. First operand 86282 states and 154468 transitions. Second operand has 37 states, 37 states have (on average 5.54054054054054) internal successors, (205), 27 states have internal predecessors, (205), 11 states have call successors, (39), 9 states have call predecessors, (39), 11 states have return successors, (34), 14 states have call predecessors, (34), 11 states have call successors, (34) [2022-12-13 18:00:50,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 18:01:19,439 WARN L539 Checker$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 18:01:50,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:01:50,502 INFO L93 Difference]: Finished difference Result 218886 states and 442729 transitions. [2022-12-13 18:01:50,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-12-13 18:01:50,502 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 5.54054054054054) internal successors, (205), 27 states have internal predecessors, (205), 11 states have call successors, (39), 9 states have call predecessors, (39), 11 states have return successors, (34), 14 states have call predecessors, (34), 11 states have call successors, (34) Word has length 163 [2022-12-13 18:01:50,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:01:51,953 INFO L225 Difference]: With dead ends: 218886 [2022-12-13 18:01:51,953 INFO L226 Difference]: Without dead ends: 132866 [2022-12-13 18:01:52,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2876 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1059, Invalid=9374, Unknown=73, NotChecked=0, Total=10506 [2022-12-13 18:01:52,689 INFO L413 NwaCegarLoop]: 1195 mSDtfsCounter, 5052 mSDsluCounter, 21571 mSDsCounter, 0 mSdLazyCounter, 32414 mSolverCounterSat, 2608 mSolverCounterUnsat, 1540 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 22766 SdHoareTripleChecker+Invalid, 36562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2608 IncrementalHoareTripleChecker+Valid, 32414 IncrementalHoareTripleChecker+Invalid, 1540 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:01:52,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 22766 Invalid, 36562 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2608 Valid, 32414 Invalid, 1540 Unknown, 0 Unchecked, 48.1s Time] [2022-12-13 18:01:52,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132866 states. [2022-12-13 18:02:03,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132866 to 118859. [2022-12-13 18:02:03,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118859 states, 90519 states have (on average 1.2796208530805686) internal successors, (115830), 93355 states have internal predecessors, (115830), 18463 states have call successors, (18463), 7086 states have call predecessors, (18463), 9876 states have return successors, (86087), 18937 states have call predecessors, (86087), 18459 states have call successors, (86087) [2022-12-13 18:02:05,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118859 states to 118859 states and 220380 transitions. [2022-12-13 18:02:05,078 INFO L78 Accepts]: Start accepts. Automaton has 118859 states and 220380 transitions. Word has length 163 [2022-12-13 18:02:05,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:02:05,079 INFO L495 AbstractCegarLoop]: Abstraction has 118859 states and 220380 transitions. [2022-12-13 18:02:05,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.54054054054054) internal successors, (205), 27 states have internal predecessors, (205), 11 states have call successors, (39), 9 states have call predecessors, (39), 11 states have return successors, (34), 14 states have call predecessors, (34), 11 states have call successors, (34) [2022-12-13 18:02:05,079 INFO L276 IsEmpty]: Start isEmpty. Operand 118859 states and 220380 transitions. [2022-12-13 18:02:05,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-12-13 18:02:05,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:02:05,085 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:02:05,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 18:02:05,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-12-13 18:02:05,287 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:02:05,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:02:05,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1796889991, now seen corresponding path program 1 times [2022-12-13 18:02:05,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:02:05,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46090647] [2022-12-13 18:02:05,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:02:05,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:02:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 18:02:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:02:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:02:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:02:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 18:02:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:02:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 18:02:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 18:02:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 18:02:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 18:02:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 18:02:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 18:02:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 18:02:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 18:02:05,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:02:05,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 18:02:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:05,916 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 18:02:05,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:02:05,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46090647] [2022-12-13 18:02:05,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46090647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:02:05,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:02:05,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:02:05,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363721869] [2022-12-13 18:02:05,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:02:05,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:02:05,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:02:05,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:02:05,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:02:05,917 INFO L87 Difference]: Start difference. First operand 118859 states and 220380 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 18:02:10,422 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 18:02:24,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:02:24,341 INFO L93 Difference]: Finished difference Result 248238 states and 553507 transitions. [2022-12-13 18:02:24,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:02:24,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 159 [2022-12-13 18:02:24,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:02:25,721 INFO L225 Difference]: With dead ends: 248238 [2022-12-13 18:02:25,721 INFO L226 Difference]: Without dead ends: 129836 [2022-12-13 18:02:26,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:02:26,920 INFO L413 NwaCegarLoop]: 1152 mSDtfsCounter, 487 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 230 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 3340 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:02:26,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 3340 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1283 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-12-13 18:02:26,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129836 states. [2022-12-13 18:02:38,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129836 to 118412. [2022-12-13 18:02:38,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118412 states, 90178 states have (on average 1.279380780234647) internal successors, (115372), 93004 states have internal predecessors, (115372), 18387 states have call successors, (18387), 7066 states have call predecessors, (18387), 9846 states have return successors, (84771), 18861 states have call predecessors, (84771), 18383 states have call successors, (84771) [2022-12-13 18:02:39,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118412 states to 118412 states and 218530 transitions. [2022-12-13 18:02:39,476 INFO L78 Accepts]: Start accepts. Automaton has 118412 states and 218530 transitions. Word has length 159 [2022-12-13 18:02:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:02:39,477 INFO L495 AbstractCegarLoop]: Abstraction has 118412 states and 218530 transitions. [2022-12-13 18:02:39,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2022-12-13 18:02:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 118412 states and 218530 transitions. [2022-12-13 18:02:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-13 18:02:39,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:02:39,483 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:02:39,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 18:02:39,483 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:02:39,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:02:39,483 INFO L85 PathProgramCache]: Analyzing trace with hash -817995703, now seen corresponding path program 1 times [2022-12-13 18:02:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:02:39,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600784905] [2022-12-13 18:02:39,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:02:39,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:02:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:39,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 18:02:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:02:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:02:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:02:40,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:02:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 18:02:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 18:02:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:02:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 18:02:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 18:02:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 18:02:40,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 18:02:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 18:02:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 18:02:40,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:02:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 18:02:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 18:02:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:02:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 18:02:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:02:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 18:02:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 18:02:40,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:02:40,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600784905] [2022-12-13 18:02:40,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600784905] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:02:40,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474252075] [2022-12-13 18:02:40,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:02:40,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:02:40,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:02:40,341 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:02:40,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 18:02:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:41,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 3154 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-13 18:02:41,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:02:41,266 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:02:41,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:02:41,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474252075] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:02:41,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:02:41,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 11 [2022-12-13 18:02:41,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473186215] [2022-12-13 18:02:41,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:02:41,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:02:41,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:02:41,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:02:41,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:02:41,268 INFO L87 Difference]: Start difference. First operand 118412 states and 218530 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 18:02:51,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:02:51,420 INFO L93 Difference]: Finished difference Result 214550 states and 443093 transitions. [2022-12-13 18:02:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:02:51,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2022-12-13 18:02:51,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:02:52,461 INFO L225 Difference]: With dead ends: 214550 [2022-12-13 18:02:52,461 INFO L226 Difference]: Without dead ends: 118680 [2022-12-13 18:02:53,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:02:53,514 INFO L413 NwaCegarLoop]: 1354 mSDtfsCounter, 2 mSDsluCounter, 6758 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8112 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:02:53,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8112 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:02:53,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118680 states. [2022-12-13 18:03:04,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118680 to 118678. [2022-12-13 18:03:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118678 states, 90386 states have (on average 1.2787378576328192) internal successors, (115580), 93170 states have internal predecessors, (115580), 18387 states have call successors, (18387), 7066 states have call predecessors, (18387), 9904 states have return successors, (84885), 18961 states have call predecessors, (84885), 18383 states have call successors, (84885) [2022-12-13 18:03:06,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118678 states to 118678 states and 218852 transitions. [2022-12-13 18:03:06,256 INFO L78 Accepts]: Start accepts. Automaton has 118678 states and 218852 transitions. Word has length 161 [2022-12-13 18:03:06,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:03:06,257 INFO L495 AbstractCegarLoop]: Abstraction has 118678 states and 218852 transitions. [2022-12-13 18:03:06,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 4 states have return successors, (21), 4 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 18:03:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 118678 states and 218852 transitions. [2022-12-13 18:03:06,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-12-13 18:03:06,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:03:06,262 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:03:06,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-12-13 18:03:06,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-12-13 18:03:06,463 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:03:06,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:03:06,464 INFO L85 PathProgramCache]: Analyzing trace with hash 486398026, now seen corresponding path program 2 times [2022-12-13 18:03:06,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:03:06,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878428293] [2022-12-13 18:03:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:06,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:03:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:06,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 18:03:06,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:03:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:03:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:03:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:03:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 18:03:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 18:03:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:03:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 18:03:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 18:03:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 18:03:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 18:03:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 18:03:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 18:03:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:03:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 18:03:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 18:03:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:03:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-12-13 18:03:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:03:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-12-13 18:03:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:07,416 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 18:03:07,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:03:07,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878428293] [2022-12-13 18:03:07,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878428293] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:03:07,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062762973] [2022-12-13 18:03:07,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:03:07,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:07,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:03:07,417 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:03:07,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 18:03:08,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:03:08,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:03:08,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 3163 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 18:03:08,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:03:08,674 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-12-13 18:03:08,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:03:08,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062762973] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:03:08,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:03:08,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 14 [2022-12-13 18:03:08,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966533547] [2022-12-13 18:03:08,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:03:08,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:03:08,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:03:08,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:03:08,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-12-13 18:03:08,677 INFO L87 Difference]: Start difference. First operand 118678 states and 218852 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 18:03:19,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:03:19,209 INFO L93 Difference]: Finished difference Result 237057 states and 488104 transitions. [2022-12-13 18:03:19,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:03:19,210 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) Word has length 161 [2022-12-13 18:03:19,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:03:20,190 INFO L225 Difference]: With dead ends: 237057 [2022-12-13 18:03:20,190 INFO L226 Difference]: Without dead ends: 118680 [2022-12-13 18:03:21,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-12-13 18:03:21,336 INFO L413 NwaCegarLoop]: 1363 mSDtfsCounter, 2 mSDsluCounter, 10875 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12238 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:03:21,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12238 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:03:21,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118680 states. [2022-12-13 18:03:31,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118680 to 118618. [2022-12-13 18:03:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118618 states, 90326 states have (on average 1.2779266213493345) internal successors, (115430), 93140 states have internal predecessors, (115430), 18387 states have call successors, (18387), 7066 states have call predecessors, (18387), 9904 states have return successors, (84885), 18931 states have call predecessors, (84885), 18383 states have call successors, (84885) [2022-12-13 18:03:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118618 states to 118618 states and 218702 transitions. [2022-12-13 18:03:32,744 INFO L78 Accepts]: Start accepts. Automaton has 118618 states and 218702 transitions. Word has length 161 [2022-12-13 18:03:32,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:03:32,744 INFO L495 AbstractCegarLoop]: Abstraction has 118618 states and 218702 transitions. [2022-12-13 18:03:32,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 7 states have internal predecessors, (105), 2 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (21), 5 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-13 18:03:32,744 INFO L276 IsEmpty]: Start isEmpty. Operand 118618 states and 218702 transitions. [2022-12-13 18:03:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-12-13 18:03:32,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:03:32,749 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:03:32,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-12-13 18:03:32,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:32,951 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:03:32,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:03:32,952 INFO L85 PathProgramCache]: Analyzing trace with hash -528570286, now seen corresponding path program 1 times [2022-12-13 18:03:32,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:03:32,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354111531] [2022-12-13 18:03:32,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:32,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:03:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 18:03:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 18:03:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:03:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:03:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-12-13 18:03:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-12-13 18:03:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 18:03:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-12-13 18:03:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-12-13 18:03:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 18:03:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-12-13 18:03:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-12-13 18:03:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 18:03:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 18:03:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:03:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 18:03:33,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 18:03:33,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:03:33,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354111531] [2022-12-13 18:03:33,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354111531] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:03:33,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950128974] [2022-12-13 18:03:33,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:33,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:33,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:03:33,706 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:03:33,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 18:03:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:34,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 3277 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 18:03:34,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:03:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 18:03:34,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:03:34,911 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-12-13 18:03:34,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950128974] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:03:34,911 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:03:34,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2022-12-13 18:03:34,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094076129] [2022-12-13 18:03:34,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:03:34,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 18:03:34,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:03:34,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 18:03:34,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-12-13 18:03:34,913 INFO L87 Difference]: Start difference. First operand 118618 states and 218702 transitions. Second operand has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-13 18:03:39,525 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 18:03:53,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:03:53,445 INFO L93 Difference]: Finished difference Result 215600 states and 479339 transitions. [2022-12-13 18:03:53,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:03:53,446 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2022-12-13 18:03:53,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:03:54,912 INFO L225 Difference]: With dead ends: 215600 [2022-12-13 18:03:54,912 INFO L226 Difference]: Without dead ends: 129746 [2022-12-13 18:03:56,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:03:56,355 INFO L413 NwaCegarLoop]: 1146 mSDtfsCounter, 911 mSDsluCounter, 3684 mSDsCounter, 0 mSdLazyCounter, 1870 mSolverCounterSat, 506 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 4830 SdHoareTripleChecker+Invalid, 2377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1870 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-12-13 18:03:56,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 4830 Invalid, 2377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1870 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-12-13 18:03:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129746 states. [2022-12-13 18:04:08,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129746 to 118738. [2022-12-13 18:04:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118738 states, 90446 states have (on average 1.2775578798399045) internal successors, (115550), 93260 states have internal predecessors, (115550), 18387 states have call successors, (18387), 7066 states have call predecessors, (18387), 9904 states have return successors, (84885), 18931 states have call predecessors, (84885), 18383 states have call successors, (84885) [2022-12-13 18:04:09,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118738 states to 118738 states and 218822 transitions. [2022-12-13 18:04:09,433 INFO L78 Accepts]: Start accepts. Automaton has 118738 states and 218822 transitions. Word has length 160 [2022-12-13 18:04:09,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:04:09,434 INFO L495 AbstractCegarLoop]: Abstraction has 118738 states and 218822 transitions. [2022-12-13 18:04:09,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.555555555555555) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (29), 4 states have call predecessors, (29), 2 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-13 18:04:09,434 INFO L276 IsEmpty]: Start isEmpty. Operand 118738 states and 218822 transitions. [2022-12-13 18:04:09,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 18:04:09,439 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:04:09,439 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:04:09,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 18:04:09,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-12-13 18:04:09,641 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:04:09,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:04:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash 451404337, now seen corresponding path program 1 times [2022-12-13 18:04:09,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:04:09,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739706415] [2022-12-13 18:04:09,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:04:09,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:04:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 18:04:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:04:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:04:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:04:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:04:11,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 18:04:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 18:04:11,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:04:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 18:04:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 18:04:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 18:04:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 18:04:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 18:04:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 18:04:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:04:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 18:04:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 18:04:11,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 18:04:11,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:11,799 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-12-13 18:04:11,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:04:11,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739706415] [2022-12-13 18:04:11,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739706415] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:04:11,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085855641] [2022-12-13 18:04:11,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:04:11,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:04:11,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:04:11,801 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:04:11,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 18:04:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:04:12,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 3186 conjuncts, 53 conjunts are in the unsatisfiable core [2022-12-13 18:04:13,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:04:13,502 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 18:04:13,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-13 18:04:13,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 18:04:13,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 18:04:13,581 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 18:04:13,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-12-13 18:04:13,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 18:04:13,625 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 18:04:13,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-12-13 18:04:13,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 18:04:13,664 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 18:04:13,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-12-13 18:04:13,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 18:04:13,706 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 18:04:13,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-12-13 18:04:13,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-13 18:04:13,776 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-13 18:04:13,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24 [2022-12-13 18:04:13,907 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 18:04:13,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 23 [2022-12-13 18:04:13,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 18:04:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-13 18:04:13,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:04:14,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2022-12-13 18:04:14,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085855641] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:04:14,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:04:14,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 36 [2022-12-13 18:04:14,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223306485] [2022-12-13 18:04:14,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:04:14,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-13 18:04:14,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:04:14,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-13 18:04:14,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1351, Unknown=0, NotChecked=0, Total=1482 [2022-12-13 18:04:14,363 INFO L87 Difference]: Start difference. First operand 118738 states and 218822 transitions. Second operand has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 27 states have internal predecessors, (201), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 15 states have call successors, (36) [2022-12-13 18:04:46,436 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 18:05:52,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:52,227 INFO L93 Difference]: Finished difference Result 302447 states and 714576 transitions. [2022-12-13 18:05:52,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-12-13 18:05:52,228 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 27 states have internal predecessors, (201), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 15 states have call successors, (36) Word has length 163 [2022-12-13 18:05:52,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:55,186 INFO L225 Difference]: With dead ends: 302447 [2022-12-13 18:05:55,187 INFO L226 Difference]: Without dead ends: 184335 [2022-12-13 18:05:56,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11719 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=2835, Invalid=29745, Unknown=0, NotChecked=0, Total=32580 [2022-12-13 18:05:56,029 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 13204 mSDsluCounter, 26530 mSDsCounter, 0 mSdLazyCounter, 50860 mSolverCounterSat, 6277 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13497 SdHoareTripleChecker+Valid, 28281 SdHoareTripleChecker+Invalid, 57138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 6277 IncrementalHoareTripleChecker+Valid, 50860 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 72.6s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:56,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13497 Valid, 28281 Invalid, 57138 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [6277 Valid, 50860 Invalid, 1 Unknown, 0 Unchecked, 72.6s Time] [2022-12-13 18:05:56,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184335 states. [2022-12-13 18:06:14,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184335 to 156597. [2022-12-13 18:06:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156597 states, 118990 states have (on average 1.2730313471720314) internal successors, (151478), 122503 states have internal predecessors, (151478), 24790 states have call successors, (24790), 8951 states have call predecessors, (24790), 12816 states have return successors, (140560), 25852 states have call predecessors, (140560), 24786 states have call successors, (140560) [2022-12-13 18:06:16,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156597 states to 156597 states and 316828 transitions. [2022-12-13 18:06:16,835 INFO L78 Accepts]: Start accepts. Automaton has 156597 states and 316828 transitions. Word has length 163 [2022-12-13 18:06:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:06:16,836 INFO L495 AbstractCegarLoop]: Abstraction has 156597 states and 316828 transitions. [2022-12-13 18:06:16,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.583333333333333) internal successors, (201), 27 states have internal predecessors, (201), 16 states have call successors, (40), 10 states have call predecessors, (40), 12 states have return successors, (36), 17 states have call predecessors, (36), 15 states have call successors, (36) [2022-12-13 18:06:16,836 INFO L276 IsEmpty]: Start isEmpty. Operand 156597 states and 316828 transitions. [2022-12-13 18:06:16,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-12-13 18:06:16,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:06:16,841 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:06:16,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-12-13 18:06:17,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524c3a1-6274-438e-9a09-e7824ae3d8eb/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:06:17,043 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:06:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:06:17,045 INFO L85 PathProgramCache]: Analyzing trace with hash 591952947, now seen corresponding path program 1 times [2022-12-13 18:06:17,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:06:17,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924685119] [2022-12-13 18:06:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:06:17,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:06:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 18:06:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 18:06:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-12-13 18:06:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:06:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 18:06:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 18:06:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 18:06:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-12-13 18:06:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 18:06:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 18:06:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 18:06:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 18:06:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 18:06:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-12-13 18:06:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:06:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 18:06:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 18:06:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-12-13 18:06:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:06:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-12-13 18:06:17,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:06:17,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924685119] [2022-12-13 18:06:17,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924685119] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:06:17,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:06:17,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 18:06:17,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293727265] [2022-12-13 18:06:17,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:06:17,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:06:17,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:06:17,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:06:17,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:06:17,414 INFO L87 Difference]: Start difference. First operand 156597 states and 316828 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 18:06:23,782 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 []