./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R --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 d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 --- 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-38b53e6 [2022-11-25 17:47:10,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:47:10,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:47:10,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:47:10,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:47:10,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:47:10,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:47:10,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:47:10,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:47:10,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:47:10,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:47:10,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:47:10,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:47:10,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:47:10,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:47:10,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:47:10,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:47:10,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:47:10,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:47:10,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:47:10,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:47:10,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:47:10,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:47:10,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:47:10,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:47:10,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:47:10,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:47:10,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:47:10,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:47:10,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:47:10,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:47:10,139 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:47:10,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:47:10,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:47:10,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:47:10,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:47:10,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:47:10,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:47:10,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:47:10,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:47:10,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:47:10,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:47:10,189 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:47:10,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:47:10,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:47:10,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:47:10,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:47:10,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:47:10,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:47:10,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:47:10,193 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:47:10,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:47:10,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:47:10,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:47:10,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:47:10,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:47:10,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:47:10,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:47:10,195 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:47:10,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:47:10,195 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:47:10,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:47:10,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:47:10,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:47:10,196 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:47:10,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:47:10,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:47:10,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:47:10,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:47:10,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:47:10,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:47:10,199 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:47:10,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:47:10,199 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_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d62cca735e5e5c3ed49d61d09e2b8d7696fac03708570c9e23afbb5bfdcaa275 [2022-11-25 17:47:10,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:47:10,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:47:10,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:47:10,520 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:47:10,520 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:47:10,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-25 17:47:13,570 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:47:14,349 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:47:14,350 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-25 17:47:14,417 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/data/72b492a72/c98ea436ce1e47c8b12f782c501785d3/FLAG547327f6d [2022-11-25 17:47:14,440 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/data/72b492a72/c98ea436ce1e47c8b12f782c501785d3 [2022-11-25 17:47:14,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:47:14,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:47:14,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:47:14,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:47:14,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:47:14,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:47:14" (1/1) ... [2022-11-25 17:47:14,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19553350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:14, skipping insertion in model container [2022-11-25 17:47:14,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:47:14" (1/1) ... [2022-11-25 17:47:14,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:47:14,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:47:15,166 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:47:15,219 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-25 17:47:15,499 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:47:15,514 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:47:15,557 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:15,561 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:47:15,562 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:47:15,564 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 17:47:15,575 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:15,575 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:47:15,683 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:47:15,693 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 17:47:15,861 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:15,862 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:15,868 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:47:15,869 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:47:15,880 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:47:15,888 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:47:15,889 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:47:15,889 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:47:15,901 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:47:15,902 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:47:15,903 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:47:15,921 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:47:15,929 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:47:15,930 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:47:15,931 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:47:15,932 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:47:15,933 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:47:15,940 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:47:15,946 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:47:15,948 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:47:15,948 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:47:15,949 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:47:15,950 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:47:16,082 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,085 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,095 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,121 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,123 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,218 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,221 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,227 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,442 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,445 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,462 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:47:16,487 WARN L623 FunctionHandler]: Unknown extern function find_font [2022-11-25 17:47:16,489 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 17:47:16,495 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:16,497 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 17:47:16,499 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:16,507 WARN L623 FunctionHandler]: Unknown extern function usb_find_interface [2022-11-25 17:47:16,509 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,510 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,512 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 17:47:16,512 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:16,512 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:16,525 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,526 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,531 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,534 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,541 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,542 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,543 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,546 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,579 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:16,599 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:47:16,600 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,600 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:47:16,601 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-11-25 17:47:16,601 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,603 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,604 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,605 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:47:16,606 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,607 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:47:16,608 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,609 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:47:16,610 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,611 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 17:47:16,611 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-11-25 17:47:16,612 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:16,613 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:47:16,614 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-11-25 17:47:16,614 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:16,619 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-11-25 17:47:16,629 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 17:47:16,634 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:47:16,660 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,661 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,661 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:47:16,662 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,663 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:47:16,663 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,665 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:47:16,665 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,666 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,667 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,668 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,668 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:47:16,669 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-11-25 17:47:16,669 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,670 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:16,671 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,671 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,671 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,672 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:47:16,673 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,673 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,674 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,674 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,674 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,675 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,675 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,675 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,676 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,677 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,678 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,678 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,678 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,679 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,679 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,679 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,680 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,681 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,681 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,682 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,682 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,682 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,683 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,683 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:16,983 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:16,984 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,173 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:47:17,236 WARN L623 FunctionHandler]: Unknown extern function con_set_default_unimap [2022-11-25 17:47:17,236 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-11-25 17:47:17,242 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:17,282 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:47:17,350 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-11-25 17:47:17,356 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:17,357 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 17:47:17,373 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-11-25 17:47:17,380 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:17,381 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 17:47:17,381 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:17,382 WARN L623 FunctionHandler]: Unknown extern function take_over_console [2022-11-25 17:47:17,383 WARN L623 FunctionHandler]: Unknown extern function take_over_console [2022-11-25 17:47:17,384 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:17,384 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:17,390 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,390 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,390 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,391 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,391 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,391 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,392 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,392 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,393 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,393 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,393 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,393 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,394 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,394 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,394 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,395 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,395 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,395 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,396 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,396 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,396 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,397 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:17,397 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:17,398 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,398 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:17,398 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:47:17,399 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,399 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:17,400 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,400 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:17,400 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,401 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,401 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:17,401 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,402 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,402 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,402 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,402 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,403 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,403 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,403 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,404 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,404 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,404 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,405 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,405 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,405 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,406 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,406 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,406 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,407 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,407 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,407 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,408 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,408 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,408 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,409 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,409 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,409 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,410 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,410 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,410 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,411 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,411 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,411 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,412 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,412 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,412 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,413 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,413 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:17,413 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,413 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,414 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,414 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,414 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,415 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:17,419 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_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2022-11-25 17:47:17,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:47:17,623 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:47:17,735 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:47:17,737 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-25 17:47:17,739 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:47:17,740 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:47:17,743 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:17,743 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:47:17,744 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:47:17,744 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 17:47:17,745 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:17,745 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:47:17,750 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:47:17,751 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 17:47:17,762 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:17,763 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:17,764 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:47:17,764 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 17:47:17,765 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:47:17,769 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:47:17,769 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:47:17,770 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:47:17,772 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:47:17,772 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:47:17,773 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:47:17,778 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:47:17,780 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:47:17,781 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:47:17,782 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:47:17,782 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:47:17,783 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:47:17,784 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:47:17,785 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:47:17,786 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait [2022-11-25 17:47:17,787 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:47:17,787 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 17:47:17,788 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:47:17,809 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:17,810 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:17,813 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:17,822 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:17,823 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:17,840 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:17,842 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:17,845 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:17,933 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:17,934 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:17,940 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:47:17,951 WARN L623 FunctionHandler]: Unknown extern function find_font [2022-11-25 17:47:17,952 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 17:47:17,953 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:17,954 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 17:47:17,956 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:17,958 WARN L623 FunctionHandler]: Unknown extern function usb_find_interface [2022-11-25 17:47:17,960 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:17,961 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:17,962 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-11-25 17:47:17,962 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:17,963 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:18,012 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,013 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,013 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,015 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,021 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,023 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,024 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,025 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,032 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:47:18,036 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:47:18,037 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,037 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:47:18,037 WARN L623 FunctionHandler]: Unknown extern function usb_register_dev [2022-11-25 17:47:18,038 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,038 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,039 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,040 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:47:18,040 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,041 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 17:47:18,041 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,043 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:47:18,044 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,045 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 17:47:18,045 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-11-25 17:47:18,046 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,046 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 17:47:18,047 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-11-25 17:47:18,047 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:47:18,048 WARN L623 FunctionHandler]: Unknown extern function usb_deregister_dev [2022-11-25 17:47:18,050 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 17:47:18,050 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 17:47:18,052 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,052 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,052 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:47:18,053 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,053 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:47:18,053 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,054 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:47:18,054 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,054 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,055 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,055 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,055 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 17:47:18,056 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-11-25 17:47:18,056 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,056 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,057 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,057 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,057 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,058 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:47:18,058 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,058 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,059 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,059 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,059 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,060 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,061 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,061 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,061 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,061 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,062 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,062 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,062 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,063 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,063 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,063 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,063 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,064 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,064 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,064 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,065 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,065 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,065 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,065 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,114 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,115 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,116 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:47:18,122 WARN L623 FunctionHandler]: Unknown extern function con_set_default_unimap [2022-11-25 17:47:18,123 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-11-25 17:47:18,124 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:18,135 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 17:47:18,161 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-11-25 17:47:18,164 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:18,164 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 17:47:18,167 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-11-25 17:47:18,170 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,171 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 17:47:18,171 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:47:18,172 WARN L623 FunctionHandler]: Unknown extern function take_over_console [2022-11-25 17:47:18,172 WARN L623 FunctionHandler]: Unknown extern function take_over_console [2022-11-25 17:47:18,173 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:18,173 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 17:47:18,175 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,175 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,175 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,176 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,176 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,176 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,177 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,177 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,177 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,178 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,178 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,178 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,178 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,179 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,179 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,179 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,180 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,180 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,180 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,180 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,181 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,181 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 17:47:18,182 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,182 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,182 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,183 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 17:47:18,183 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,183 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,184 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,184 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,184 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,184 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,185 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,185 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,185 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,185 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,186 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,186 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,186 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,187 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,187 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,187 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,187 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,188 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,188 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,188 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,188 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,189 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,189 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,189 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,190 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,190 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,190 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,190 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,191 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,191 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,191 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,192 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,192 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,192 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,192 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,193 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,193 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,193 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,193 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,194 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,194 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,194 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,194 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,195 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 17:47:18,195 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,195 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,195 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,196 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,196 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,196 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:47:18,197 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_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[361017,361030] [2022-11-25 17:47:18,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:47:18,430 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:47:18,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18 WrapperNode [2022-11-25 17:47:18,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:47:18,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:47:18,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:47:18,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:47:18,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:18,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,124 INFO L138 Inliner]: procedures = 359, calls = 7223, calls flagged for inlining = 183, calls inlined = 137, statements flattened = 13695 [2022-11-25 17:47:19,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:47:19,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:47:19,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:47:19,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:47:19,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,692 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:47:19,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:47:19,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:47:19,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:47:19,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (1/1) ... [2022-11-25 17:47:19,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:47:19,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:47:19,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:47:20,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:47:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-25 17:47:20,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-25 17:47:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-25 17:47:20,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-25 17:47:20,070 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-25 17:47:20,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-25 17:47:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 17:47:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 17:47:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-25 17:47:20,071 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-25 17:47:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_recv_bulk_msg [2022-11-25 17:47:20,071 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_recv_bulk_msg [2022-11-25 17:47:20,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:47:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:47:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_save_screen [2022-11-25 17:47:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_save_screen [2022-11-25 17:47:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_buffers [2022-11-25 17:47:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_buffers [2022-11-25 17:47:20,072 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_disconnect [2022-11-25 17:47:20,072 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_disconnect [2022-11-25 17:47:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_deinit [2022-11-25 17:47:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_deinit [2022-11-25 17:47:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_byte [2022-11-25 17:47:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_byte [2022-11-25 17:47:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 17:47:20,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 17:47:20,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-25 17:47:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-25 17:47:20,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 17:47:20,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 17:47:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_cursor [2022-11-25 17:47:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_cursor [2022-11-25 17:47:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-11-25 17:47:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2022-11-25 17:47:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-25 17:47:20,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-25 17:47:20,075 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_word [2022-11-25 17:47:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_word [2022-11-25 17:47:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 17:47:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 17:47:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetReg [2022-11-25 17:47:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetReg [2022-11-25 17:47:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-25 17:47:20,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-25 17:47:20,076 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb_lock_and_check [2022-11-25 17:47:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb_lock_and_check [2022-11-25 17:47:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:47:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure take_over_console [2022-11-25 17:47:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure take_over_console [2022-11-25 17:47:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_sisusb_valid [2022-11-25 17:47:20,077 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_sisusb_valid [2022-11-25 17:47:20,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:47:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegOR [2022-11-25 17:47:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegOR [2022-11-25 17:47:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2022-11-25 17:47:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_sisusb_usb_data [2022-11-25 17:47:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-25 17:47:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_check_rbc [2022-11-25 17:47:20,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_check_rbc [2022-11-25 17:47:20,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:47:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:47:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 17:47:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 17:47:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_outurb_available [2022-11-25 17:47:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_outurb_available [2022-11-25 17:47:20,079 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_kill_all_busy [2022-11-25 17:47:20,079 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_kill_all_busy [2022-11-25 17:47:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 17:47:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 17:47:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-25 17:47:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-25 17:47:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getidxreg [2022-11-25 17:47:20,080 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getidxreg [2022-11-25 17:47:20,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-25 17:47:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-25 17:47:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-25 17:47:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-25 17:47:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_writeb [2022-11-25 17:47:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_writeb [2022-11-25 17:47:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 17:47:20,081 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 17:47:20,081 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 17:47:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_set_default_mode [2022-11-25 17:47:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_set_default_mode [2022-11-25 17:47:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_byte [2022-11-25 17:47:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_byte [2022-11-25 17:47:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:47:20,082 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_DisplayOn [2022-11-25 17:47:20,082 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_DisplayOn [2022-11-25 17:47:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregandor [2022-11-25 17:47:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregandor [2022-11-25 17:47:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_mem_bulk [2022-11-25 17:47:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_mem_bulk [2022-11-25 17:47:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-25 17:47:20,083 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-25 17:47:20,083 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbdummycon_init [2022-11-25 17:47:20,084 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbdummycon_init [2022-11-25 17:47:20,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-11-25 17:47:20,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-11-25 17:47:20,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:47:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetReg [2022-11-25 17:47:20,092 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetReg [2022-11-25 17:47:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_do_font_op [2022-11-25 17:47:20,092 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_do_font_op [2022-11-25 17:47:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_init_gfxdevice [2022-11-25 17:47:20,092 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_init_gfxdevice [2022-11-25 17:47:20,092 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegByte [2022-11-25 17:47:20,093 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegByte [2022-11-25 17:47:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_free_urbs [2022-11-25 17:47:20,093 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_free_urbs [2022-11-25 17:47:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 17:47:20,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 17:47:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bridge_packet [2022-11-25 17:47:20,093 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bridge_packet [2022-11-25 17:47:20,093 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 17:47:20,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 17:47:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-25 17:47:20,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-25 17:47:20,094 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_ioctl [2022-11-25 17:47:20,094 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_ioctl [2022-11-25 17:47:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_word [2022-11-25 17:47:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_word [2022-11-25 17:47:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_get_sisusb [2022-11-25 17:47:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_get_sisusb [2022-11-25 17:47:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 17:47:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 17:47:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_cursor [2022-11-25 17:47:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_cursor [2022-11-25 17:47:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_is_inactive [2022-11-25 17:47:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_is_inactive [2022-11-25 17:47:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-25 17:47:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-25 17:47:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_clear_vram [2022-11-25 17:47:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_clear_vram [2022-11-25 17:47:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_pci_config [2022-11-25 17:47:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_pci_config [2022-11-25 17:47:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:47:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-25 17:47:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-25 17:47:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_bulk_msg [2022-11-25 17:47:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_bulk_msg [2022-11-25 17:47:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-25 17:47:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-25 17:47:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:47:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:47:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_readb [2022-11-25 17:47:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_readb [2022-11-25 17:47:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregor [2022-11-25 17:47:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregor [2022-11-25 17:47:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:47:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-25 17:47:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-25 17:47:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-25 17:47:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-25 17:47:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:47:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_send_packet [2022-11-25 17:47:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_send_packet [2022-11-25 17:47:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_memio_long [2022-11-25 17:47:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_memio_long [2022-11-25 17:47:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_reset_text_mode [2022-11-25 17:47:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_reset_text_mode [2022-11-25 17:47:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSB_InitPtr [2022-11-25 17:47:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSB_InitPtr [2022-11-25 17:47:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:47:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_pci_config [2022-11-25 17:47:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_pci_config [2022-11-25 17:47:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 17:47:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxreg [2022-11-25 17:47:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxreg [2022-11-25 17:47:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegANDOR [2022-11-25 17:47:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegANDOR [2022-11-25 17:47:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:47:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:47:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_wait_all_out_complete [2022-11-25 17:47:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_wait_all_out_complete [2022-11-25 17:47:20,115 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-25 17:47:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-25 17:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetRegAND [2022-11-25 17:47:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetRegAND [2022-11-25 17:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setidxregand [2022-11-25 17:47:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setidxregand [2022-11-25 17:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-25 17:47:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-25 17:47:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_SetSegmentReg [2022-11-25 17:47:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_SetSegmentReg [2022-11-25 17:47:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_copy_memory [2022-11-25 17:47:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_copy_memory [2022-11-25 17:47:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_setreg [2022-11-25 17:47:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_setreg [2022-11-25 17:47:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2022-11-25 17:47:20,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_sisusb_usb_data [2022-11-25 17:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_set_start_address [2022-11-25 17:47:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_set_start_address [2022-11-25 17:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-25 17:47:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-25 17:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 17:47:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 17:47:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_WriteDAC [2022-11-25 17:47:20,118 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_WriteDAC [2022-11-25 17:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_read_mem_bulk [2022-11-25 17:47:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_read_mem_bulk [2022-11-25 17:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_getreg [2022-11-25 17:47:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_getreg [2022-11-25 17:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure SiSUSBSetMode [2022-11-25 17:47:20,119 INFO L138 BoogieDeclarations]: Found implementation of procedure SiSUSBSetMode [2022-11-25 17:47:20,119 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2022-11-25 17:47:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2022-11-25 17:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure sisusbcon_init [2022-11-25 17:47:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusbcon_init [2022-11-25 17:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-25 17:47:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-25 17:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:47:20,120 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_write_memio_long [2022-11-25 17:47:20,120 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_write_memio_long [2022-11-25 17:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure SiS_GetRegByte [2022-11-25 17:47:20,121 INFO L138 BoogieDeclarations]: Found implementation of procedure SiS_GetRegByte [2022-11-25 17:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 17:47:20,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 17:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_triggersr16 [2022-11-25 17:47:20,121 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_triggersr16 [2022-11-25 17:47:20,121 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-25 17:47:20,122 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-25 17:47:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:47:20,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:47:20,122 INFO L130 BoogieDeclarations]: Found specification of procedure sisusb_all_free [2022-11-25 17:47:20,122 INFO L138 BoogieDeclarations]: Found implementation of procedure sisusb_all_free [2022-11-25 17:47:21,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:47:21,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:47:56,766 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:47:56,789 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:47:56,790 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:47:56,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:47:56 BoogieIcfgContainer [2022-11-25 17:47:56,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:47:56,799 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:47:56,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:47:56,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:47:56,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:47:14" (1/3) ... [2022-11-25 17:47:56,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be3c59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:47:56, skipping insertion in model container [2022-11-25 17:47:56,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:47:18" (2/3) ... [2022-11-25 17:47:56,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@be3c59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:47:56, skipping insertion in model container [2022-11-25 17:47:56,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:47:56" (3/3) ... [2022-11-25 17:47:56,806 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--usb--misc--sisusbvga--sisusbvga.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-25 17:47:56,825 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:47:56,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:47:56,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:47:56,944 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;@5b65e6e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:47:56,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:47:56,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 3462 states, 2591 states have (on average 1.4438440756464685) internal successors, (3741), 2618 states have internal predecessors, (3741), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) [2022-11-25 17:47:56,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:47:56,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:47:56,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:47:56,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:47:56,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:47:56,975 INFO L85 PathProgramCache]: Analyzing trace with hash -156310117, now seen corresponding path program 1 times [2022-11-25 17:47:56,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:47:56,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204250303] [2022-11-25 17:47:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:47:56,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:47:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:58,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:47:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:47:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:47:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:47:58,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:47:58,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204250303] [2022-11-25 17:47:58,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204250303] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:47:58,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:47:58,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:47:58,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079819962] [2022-11-25 17:47:58,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:47:58,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:47:58,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:47:58,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:47:58,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:47:58,816 INFO L87 Difference]: Start difference. First operand has 3462 states, 2591 states have (on average 1.4438440756464685) internal successors, (3741), 2618 states have internal predecessors, (3741), 765 states have call successors, (765), 104 states have call predecessors, (765), 104 states have return successors, (765), 761 states have call predecessors, (765), 765 states have call successors, (765) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:48:07,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:12,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:14,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:23,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:40,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:48:43,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:43,206 INFO L93 Difference]: Finished difference Result 7000 states and 11255 transitions. [2022-11-25 17:48:43,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:48:43,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-11-25 17:48:43,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:43,271 INFO L225 Difference]: With dead ends: 7000 [2022-11-25 17:48:43,272 INFO L226 Difference]: Without dead ends: 3542 [2022-11-25 17:48:43,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:48:43,317 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 3501 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 9028 mSolverCounterSat, 302 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4047 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 9334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 9028 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:43,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4047 Valid, 2536 Invalid, 9334 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [302 Valid, 9028 Invalid, 4 Unknown, 0 Unchecked, 43.4s Time] [2022-11-25 17:48:43,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3542 states. [2022-11-25 17:48:43,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3542 to 3455. [2022-11-25 17:48:43,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3455 states, 2587 states have (on average 1.4395052183996908) internal successors, (3724), 2612 states have internal predecessors, (3724), 765 states have call successors, (765), 104 states have call predecessors, (765), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2022-11-25 17:48:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3455 states to 3455 states and 5248 transitions. [2022-11-25 17:48:43,611 INFO L78 Accepts]: Start accepts. Automaton has 3455 states and 5248 transitions. Word has length 19 [2022-11-25 17:48:43,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:43,612 INFO L495 AbstractCegarLoop]: Abstraction has 3455 states and 5248 transitions. [2022-11-25 17:48:43,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 17:48:43,613 INFO L276 IsEmpty]: Start isEmpty. Operand 3455 states and 5248 transitions. [2022-11-25 17:48:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:48:43,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:43,615 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] [2022-11-25 17:48:43,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:48:43,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:43,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:43,616 INFO L85 PathProgramCache]: Analyzing trace with hash -146214785, now seen corresponding path program 1 times [2022-11-25 17:48:43,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:43,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828126080] [2022-11-25 17:48:43,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:43,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:44,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:48:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:44,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:48:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:44,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:44,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828126080] [2022-11-25 17:48:44,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828126080] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:44,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355876375] [2022-11-25 17:48:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:44,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:44,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:44,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:44,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:48:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:47,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 8418 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:48:47,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:48:47,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:48:47,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355876375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:47,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:48:47,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-25 17:48:47,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273118399] [2022-11-25 17:48:47,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:47,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:48:47,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:47,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:48:47,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:48:47,196 INFO L87 Difference]: Start difference. First operand 3455 states and 5248 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:48:47,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:47,519 INFO L93 Difference]: Finished difference Result 3457 states and 5249 transitions. [2022-11-25 17:48:47,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:48:47,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-11-25 17:48:47,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:47,546 INFO L225 Difference]: With dead ends: 3457 [2022-11-25 17:48:47,547 INFO L226 Difference]: Without dead ends: 3454 [2022-11-25 17:48:47,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:48:47,551 INFO L413 NwaCegarLoop]: 5244 mSDtfsCounter, 5227 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5227 SdHoareTripleChecker+Valid, 5246 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:47,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5227 Valid, 5246 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:48:47,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2022-11-25 17:48:47,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3454. [2022-11-25 17:48:47,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 2587 states have (on average 1.4391186702744492) internal successors, (3723), 2611 states have internal predecessors, (3723), 764 states have call successors, (764), 104 states have call predecessors, (764), 102 states have return successors, (759), 755 states have call predecessors, (759), 759 states have call successors, (759) [2022-11-25 17:48:47,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 5246 transitions. [2022-11-25 17:48:47,751 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 5246 transitions. Word has length 21 [2022-11-25 17:48:47,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:47,752 INFO L495 AbstractCegarLoop]: Abstraction has 3454 states and 5246 transitions. [2022-11-25 17:48:47,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:48:47,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 5246 transitions. [2022-11-25 17:48:47,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:48:47,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:47,755 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] [2022-11-25 17:48:47,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:47,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-25 17:48:47,971 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:47,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:47,972 INFO L85 PathProgramCache]: Analyzing trace with hash -240142207, now seen corresponding path program 1 times [2022-11-25 17:48:47,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:47,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878202957] [2022-11-25 17:48:47,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:47,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:48:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:48,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:48:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:49,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:49,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:49,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878202957] [2022-11-25 17:48:49,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878202957] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:49,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1963992642] [2022-11-25 17:48:49,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:49,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:49,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:49,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:49,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:48:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:51,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 8420 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:48:51,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:51,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:48:51,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:48:51,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1963992642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:51,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:48:51,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-25 17:48:51,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986879591] [2022-11-25 17:48:51,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:51,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:48:51,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:51,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:48:51,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:48:51,364 INFO L87 Difference]: Start difference. First operand 3454 states and 5246 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:48:51,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:51,875 INFO L93 Difference]: Finished difference Result 9241 states and 14060 transitions. [2022-11-25 17:48:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:48:51,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-11-25 17:48:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:51,923 INFO L225 Difference]: With dead ends: 9241 [2022-11-25 17:48:51,923 INFO L226 Difference]: Without dead ends: 5802 [2022-11-25 17:48:51,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:48:51,954 INFO L413 NwaCegarLoop]: 7831 mSDtfsCounter, 3777 mSDsluCounter, 4991 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3777 SdHoareTripleChecker+Valid, 12822 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:51,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3777 Valid, 12822 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:48:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2022-11-25 17:48:52,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5799. [2022-11-25 17:48:52,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5799 states, 4363 states have (on average 1.4386889754755903) internal successors, (6277), 4414 states have internal predecessors, (6277), 1254 states have call successors, (1254), 180 states have call predecessors, (1254), 181 states have return successors, (1261), 1230 states have call predecessors, (1261), 1236 states have call successors, (1261) [2022-11-25 17:48:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5799 states to 5799 states and 8792 transitions. [2022-11-25 17:48:52,375 INFO L78 Accepts]: Start accepts. Automaton has 5799 states and 8792 transitions. Word has length 22 [2022-11-25 17:48:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:52,376 INFO L495 AbstractCegarLoop]: Abstraction has 5799 states and 8792 transitions. [2022-11-25 17:48:52,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:48:52,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5799 states and 8792 transitions. [2022-11-25 17:48:52,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 17:48:52,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:52,379 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] [2022-11-25 17:48:52,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:52,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:52,595 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:52,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:52,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1143079874, now seen corresponding path program 1 times [2022-11-25 17:48:52,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:52,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225321320] [2022-11-25 17:48:52,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:52,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:48:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:53,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:48:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:53,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:48:53,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:53,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225321320] [2022-11-25 17:48:53,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225321320] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:53,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606135353] [2022-11-25 17:48:53,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:53,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:53,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:53,614 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:53,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:48:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:55,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 8422 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:48:55,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:48:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:48:55,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:48:55,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606135353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:48:55,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:48:55,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-11-25 17:48:55,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524198098] [2022-11-25 17:48:55,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:48:55,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:48:55,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:48:55,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:48:55,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:48:55,853 INFO L87 Difference]: Start difference. First operand 5799 states and 8792 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:48:56,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:48:56,287 INFO L93 Difference]: Finished difference Result 5801 states and 8793 transitions. [2022-11-25 17:48:56,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:48:56,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-25 17:48:56,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:48:56,341 INFO L225 Difference]: With dead ends: 5801 [2022-11-25 17:48:56,342 INFO L226 Difference]: Without dead ends: 5790 [2022-11-25 17:48:56,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:48:56,351 INFO L413 NwaCegarLoop]: 5243 mSDtfsCounter, 5223 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5223 SdHoareTripleChecker+Valid, 5245 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:48:56,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5223 Valid, 5245 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:48:56,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5790 states. [2022-11-25 17:48:56,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5790 to 5790. [2022-11-25 17:48:56,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5790 states, 4357 states have (on average 1.4376864815239845) internal successors, (6264), 4407 states have internal predecessors, (6264), 1251 states have call successors, (1251), 179 states have call predecessors, (1251), 181 states have return successors, (1260), 1229 states have call predecessors, (1260), 1235 states have call successors, (1260) [2022-11-25 17:48:56,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5790 states to 5790 states and 8775 transitions. [2022-11-25 17:48:56,768 INFO L78 Accepts]: Start accepts. Automaton has 5790 states and 8775 transitions. Word has length 23 [2022-11-25 17:48:56,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:48:56,768 INFO L495 AbstractCegarLoop]: Abstraction has 5790 states and 8775 transitions. [2022-11-25 17:48:56,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:48:56,770 INFO L276 IsEmpty]: Start isEmpty. Operand 5790 states and 8775 transitions. [2022-11-25 17:48:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 17:48:56,779 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:48:56,780 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:48:56,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:48:56,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:56,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:48:56,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:48:56,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1860261799, now seen corresponding path program 1 times [2022-11-25 17:48:56,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:48:56,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488174509] [2022-11-25 17:48:56,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:56,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:48:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:48:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:48:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:48:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:58,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:48:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:58,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:48:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:48:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:48:58,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:48:58,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488174509] [2022-11-25 17:48:58,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488174509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:48:58,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081117165] [2022-11-25 17:48:58,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:48:58,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:48:58,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:48:58,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:48:58,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:49:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:00,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 8602 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:49:00,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:49:00,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:49:00,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:49:00,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081117165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:49:00,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:49:00,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-25 17:49:00,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021955396] [2022-11-25 17:49:00,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:49:00,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:49:00,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:00,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:49:00,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:49:00,716 INFO L87 Difference]: Start difference. First operand 5790 states and 8775 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 17:49:01,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:49:01,154 INFO L93 Difference]: Finished difference Result 11829 states and 17960 transitions. [2022-11-25 17:49:01,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:49:01,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2022-11-25 17:49:01,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:49:01,224 INFO L225 Difference]: With dead ends: 11829 [2022-11-25 17:49:01,225 INFO L226 Difference]: Without dead ends: 6054 [2022-11-25 17:49:01,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:49:01,260 INFO L413 NwaCegarLoop]: 5274 mSDtfsCounter, 179 mSDsluCounter, 5162 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 10436 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:49:01,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 10436 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:49:01,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2022-11-25 17:49:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 6027. [2022-11-25 17:49:01,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6027 states, 4532 states have (on average 1.4375551632833186) internal successors, (6515), 4589 states have internal predecessors, (6515), 1313 states have call successors, (1313), 179 states have call predecessors, (1313), 181 states have return successors, (1327), 1290 states have call predecessors, (1327), 1297 states have call successors, (1327) [2022-11-25 17:49:01,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6027 states to 6027 states and 9155 transitions. [2022-11-25 17:49:01,673 INFO L78 Accepts]: Start accepts. Automaton has 6027 states and 9155 transitions. Word has length 48 [2022-11-25 17:49:01,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:49:01,673 INFO L495 AbstractCegarLoop]: Abstraction has 6027 states and 9155 transitions. [2022-11-25 17:49:01,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 17:49:01,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6027 states and 9155 transitions. [2022-11-25 17:49:01,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-25 17:49:01,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:49:01,678 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:49:01,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:49:01,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:49:01,900 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:49:01,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:49:01,900 INFO L85 PathProgramCache]: Analyzing trace with hash 490461134, now seen corresponding path program 1 times [2022-11-25 17:49:01,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:49:01,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916669282] [2022-11-25 17:49:01,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:01,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:49:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:03,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:49:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:03,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:49:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:03,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:49:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:49:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:03,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:49:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:03,133 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:49:03,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:49:03,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916669282] [2022-11-25 17:49:03,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916669282] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:49:03,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684091361] [2022-11-25 17:49:03,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:03,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:49:03,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:49:03,139 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:49:03,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:49:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:05,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 8601 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:49:05,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:49:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:49:05,407 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:49:05,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684091361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:49:05,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:49:05,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-11-25 17:49:05,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914660049] [2022-11-25 17:49:05,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:49:05,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:49:05,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:05,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:49:05,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:49:05,410 INFO L87 Difference]: Start difference. First operand 6027 states and 9155 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-25 17:49:05,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:49:05,881 INFO L93 Difference]: Finished difference Result 12043 states and 18308 transitions. [2022-11-25 17:49:05,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:49:05,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 59 [2022-11-25 17:49:05,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:49:05,925 INFO L225 Difference]: With dead ends: 12043 [2022-11-25 17:49:05,925 INFO L226 Difference]: Without dead ends: 6031 [2022-11-25 17:49:05,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:49:05,966 INFO L413 NwaCegarLoop]: 5238 mSDtfsCounter, 3 mSDsluCounter, 10471 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 15709 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 [2022-11-25 17:49:05,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 15709 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:49:05,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2022-11-25 17:49:06,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 6030. [2022-11-25 17:49:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6030 states, 4535 states have (on average 1.437265711135612) internal successors, (6518), 4592 states have internal predecessors, (6518), 1313 states have call successors, (1313), 179 states have call predecessors, (1313), 181 states have return successors, (1327), 1290 states have call predecessors, (1327), 1297 states have call successors, (1327) [2022-11-25 17:49:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6030 states to 6030 states and 9158 transitions. [2022-11-25 17:49:06,384 INFO L78 Accepts]: Start accepts. Automaton has 6030 states and 9158 transitions. Word has length 59 [2022-11-25 17:49:06,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:49:06,385 INFO L495 AbstractCegarLoop]: Abstraction has 6030 states and 9158 transitions. [2022-11-25 17:49:06,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-25 17:49:06,386 INFO L276 IsEmpty]: Start isEmpty. Operand 6030 states and 9158 transitions. [2022-11-25 17:49:06,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-25 17:49:06,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:49:06,387 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:49:06,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:49:06,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 17:49:06,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:49:06,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:49:06,608 INFO L85 PathProgramCache]: Analyzing trace with hash -930571598, now seen corresponding path program 1 times [2022-11-25 17:49:06,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:49:06,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545164236] [2022-11-25 17:49:06,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:06,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:49:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:49:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:07,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:49:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:07,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-25 17:49:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:07,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:49:07,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:07,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:49:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:49:07,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:49:07,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545164236] [2022-11-25 17:49:07,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545164236] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:49:07,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372824428] [2022-11-25 17:49:07,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:49:07,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:49:07,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:49:07,891 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:49:07,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:49:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:49:10,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 8576 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:49:10,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:49:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:49:10,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:49:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 17:49:10,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372824428] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:49:10,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:49:10,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2022-11-25 17:49:10,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031238318] [2022-11-25 17:49:10,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:49:10,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:49:10,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:49:10,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:49:10,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:49:10,186 INFO L87 Difference]: Start difference. First operand 6030 states and 9158 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:49:13,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:18,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:20,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:29,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:49:46,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:14,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:50:19,169 INFO L93 Difference]: Finished difference Result 12199 states and 18542 transitions. [2022-11-25 17:50:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:50:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 54 [2022-11-25 17:50:19,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:50:19,206 INFO L225 Difference]: With dead ends: 12199 [2022-11-25 17:50:19,206 INFO L226 Difference]: Without dead ends: 6180 [2022-11-25 17:50:19,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:50:19,230 INFO L413 NwaCegarLoop]: 1120 mSDtfsCounter, 6498 mSDsluCounter, 3639 mSDsCounter, 0 mSdLazyCounter, 17278 mSolverCounterSat, 1642 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7044 SdHoareTripleChecker+Valid, 4759 SdHoareTripleChecker+Invalid, 18924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1642 IncrementalHoareTripleChecker+Valid, 17278 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:50:19,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7044 Valid, 4759 Invalid, 18924 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1642 Valid, 17278 Invalid, 4 Unknown, 0 Unchecked, 67.9s Time] [2022-11-25 17:50:19,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6180 states. [2022-11-25 17:50:19,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6180 to 6095. [2022-11-25 17:50:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6095 states, 4582 states have (on average 1.4360541248363161) internal successors, (6580), 4651 states have internal predecessors, (6580), 1321 states have call successors, (1321), 179 states have call predecessors, (1321), 191 states have return successors, (1361), 1296 states have call predecessors, (1361), 1305 states have call successors, (1361) [2022-11-25 17:50:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6095 states to 6095 states and 9262 transitions. [2022-11-25 17:50:19,613 INFO L78 Accepts]: Start accepts. Automaton has 6095 states and 9262 transitions. Word has length 54 [2022-11-25 17:50:19,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:50:19,614 INFO L495 AbstractCegarLoop]: Abstraction has 6095 states and 9262 transitions. [2022-11-25 17:50:19,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:50:19,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6095 states and 9262 transitions. [2022-11-25 17:50:19,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-25 17:50:19,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:50:19,617 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:50:19,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:50:19,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:50:19,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:50:19,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:50:19,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2042721670, now seen corresponding path program 2 times [2022-11-25 17:50:19,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:50:19,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897451882] [2022-11-25 17:50:19,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:50:19,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:50:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:20,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:50:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:20,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:50:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:20,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:50:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:50:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:50:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:50:20,940 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:50:20,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:50:20,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897451882] [2022-11-25 17:50:20,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897451882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:50:20,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:50:20,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:50:20,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592056060] [2022-11-25 17:50:20,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:50:20,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:50:20,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:50:20,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:50:20,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:50:20,943 INFO L87 Difference]: Start difference. First operand 6095 states and 9262 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 17:50:23,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:26,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:35,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:50:45,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:07,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:51:09,825 INFO L93 Difference]: Finished difference Result 13689 states and 20760 transitions. [2022-11-25 17:51:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:51:09,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2022-11-25 17:51:09,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:51:09,985 INFO L225 Difference]: With dead ends: 13689 [2022-11-25 17:51:09,986 INFO L226 Difference]: Without dead ends: 7615 [2022-11-25 17:51:10,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:51:10,006 INFO L413 NwaCegarLoop]: 1460 mSDtfsCounter, 11174 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 9514 mSolverCounterSat, 3371 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11809 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 12889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3371 IncrementalHoareTripleChecker+Valid, 9514 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:51:10,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11809 Valid, 2993 Invalid, 12889 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3371 Valid, 9514 Invalid, 4 Unknown, 0 Unchecked, 47.9s Time] [2022-11-25 17:51:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7615 states. [2022-11-25 17:51:10,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7615 to 7502. [2022-11-25 17:51:10,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7502 states, 5631 states have (on average 1.4281655123423904) internal successors, (8042), 5715 states have internal predecessors, (8042), 1615 states have call successors, (1615), 246 states have call predecessors, (1615), 255 states have return successors, (1636), 1578 states have call predecessors, (1636), 1589 states have call successors, (1636) [2022-11-25 17:51:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7502 states to 7502 states and 11293 transitions. [2022-11-25 17:51:10,449 INFO L78 Accepts]: Start accepts. Automaton has 7502 states and 11293 transitions. Word has length 60 [2022-11-25 17:51:10,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:51:10,451 INFO L495 AbstractCegarLoop]: Abstraction has 7502 states and 11293 transitions. [2022-11-25 17:51:10,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 17:51:10,452 INFO L276 IsEmpty]: Start isEmpty. Operand 7502 states and 11293 transitions. [2022-11-25 17:51:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-25 17:51:10,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:51:10,460 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 17:51:10,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:51:10,461 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:51:10,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:51:10,461 INFO L85 PathProgramCache]: Analyzing trace with hash 52477080, now seen corresponding path program 1 times [2022-11-25 17:51:10,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:51:10,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839610650] [2022-11-25 17:51:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:51:10,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:51:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:51:11,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:51:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:51:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:51:11,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:51:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:51:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:51:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:51:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:51:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:51:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:51:11,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:51:11,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:51:11,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839610650] [2022-11-25 17:51:11,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839610650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:51:11,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:51:11,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:51:11,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245923195] [2022-11-25 17:51:11,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:51:11,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:51:11,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:51:11,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:51:11,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:51:11,548 INFO L87 Difference]: Start difference. First operand 7502 states and 11293 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:51:14,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:18,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:30,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:51:45,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:09,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:12,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:52:12,910 INFO L93 Difference]: Finished difference Result 15265 states and 23048 transitions. [2022-11-25 17:52:12,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:52:12,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2022-11-25 17:52:12,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:52:12,957 INFO L225 Difference]: With dead ends: 15265 [2022-11-25 17:52:12,958 INFO L226 Difference]: Without dead ends: 7784 [2022-11-25 17:52:12,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:52:12,986 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 3899 mSDsluCounter, 2768 mSDsCounter, 0 mSdLazyCounter, 12915 mSolverCounterSat, 1246 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4406 SdHoareTripleChecker+Valid, 3896 SdHoareTripleChecker+Invalid, 14166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1246 IncrementalHoareTripleChecker+Valid, 12915 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:52:12,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4406 Valid, 3896 Invalid, 14166 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1246 Valid, 12915 Invalid, 5 Unknown, 0 Unchecked, 60.3s Time] [2022-11-25 17:52:12,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7784 states. [2022-11-25 17:52:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7784 to 7503. [2022-11-25 17:52:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7503 states, 5632 states have (on average 1.4280894886363635) internal successors, (8043), 5716 states have internal predecessors, (8043), 1615 states have call successors, (1615), 246 states have call predecessors, (1615), 255 states have return successors, (1636), 1578 states have call predecessors, (1636), 1589 states have call successors, (1636) [2022-11-25 17:52:13,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7503 states to 7503 states and 11294 transitions. [2022-11-25 17:52:13,472 INFO L78 Accepts]: Start accepts. Automaton has 7503 states and 11294 transitions. Word has length 105 [2022-11-25 17:52:13,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:52:13,473 INFO L495 AbstractCegarLoop]: Abstraction has 7503 states and 11294 transitions. [2022-11-25 17:52:13,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:52:13,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7503 states and 11294 transitions. [2022-11-25 17:52:13,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-25 17:52:13,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:52:13,486 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 17:52:13,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:52:13,487 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:52:13,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:13,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1941667626, now seen corresponding path program 1 times [2022-11-25 17:52:13,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:52:13,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598748793] [2022-11-25 17:52:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:13,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:52:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:52:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:52:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:52:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:52:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:52:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:52:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:52:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:52:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:52:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:52:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:15,609 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:52:15,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:52:15,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598748793] [2022-11-25 17:52:15,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598748793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:52:15,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:52:15,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:52:15,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458991787] [2022-11-25 17:52:15,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:52:15,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:52:15,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:52:15,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:52:15,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:52:15,612 INFO L87 Difference]: Start difference. First operand 7503 states and 11294 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-25 17:52:18,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:20,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:23,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:25,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:29,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:43,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:46,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:52:47,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:06,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:39,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:45,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:53:45,487 INFO L93 Difference]: Finished difference Result 15270 states and 23055 transitions. [2022-11-25 17:53:45,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:53:45,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 105 [2022-11-25 17:53:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:53:45,538 INFO L225 Difference]: With dead ends: 15270 [2022-11-25 17:53:45,538 INFO L226 Difference]: Without dead ends: 7788 [2022-11-25 17:53:45,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:53:45,565 INFO L413 NwaCegarLoop]: 1126 mSDtfsCounter, 3900 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 21589 mSolverCounterSat, 1248 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4407 SdHoareTripleChecker+Valid, 5754 SdHoareTripleChecker+Invalid, 22842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1248 IncrementalHoareTripleChecker+Valid, 21589 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.6s IncrementalHoareTripleChecker+Time [2022-11-25 17:53:45,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4407 Valid, 5754 Invalid, 22842 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1248 Valid, 21589 Invalid, 5 Unknown, 0 Unchecked, 88.6s Time] [2022-11-25 17:53:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7788 states. [2022-11-25 17:53:45,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7788 to 7507. [2022-11-25 17:53:45,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7507 states, 5635 states have (on average 1.4278615794143745) internal successors, (8046), 5719 states have internal predecessors, (8046), 1615 states have call successors, (1615), 246 states have call predecessors, (1615), 256 states have return successors, (1639), 1579 states have call predecessors, (1639), 1589 states have call successors, (1639) [2022-11-25 17:53:46,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7507 states to 7507 states and 11300 transitions. [2022-11-25 17:53:46,037 INFO L78 Accepts]: Start accepts. Automaton has 7507 states and 11300 transitions. Word has length 105 [2022-11-25 17:53:46,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:53:46,039 INFO L495 AbstractCegarLoop]: Abstraction has 7507 states and 11300 transitions. [2022-11-25 17:53:46,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-25 17:53:46,039 INFO L276 IsEmpty]: Start isEmpty. Operand 7507 states and 11300 transitions. [2022-11-25 17:53:46,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-25 17:53:46,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:46,046 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-25 17:53:46,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:53:46,046 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:46,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:46,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1673241300, now seen corresponding path program 1 times [2022-11-25 17:53:46,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:53:46,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518228612] [2022-11-25 17:53:46,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:46,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:53:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:53:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:53:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:53:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:53:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:53:47,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:53:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:53:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:53:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:53:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:53:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:53:47,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:53:47,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518228612] [2022-11-25 17:53:47,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518228612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:53:47,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:53:47,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:53:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228127345] [2022-11-25 17:53:47,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:53:47,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:53:47,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:53:47,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:53:47,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:53:47,986 INFO L87 Difference]: Start difference. First operand 7507 states and 11300 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:53:50,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:52,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:53:54,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:54:09,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:54:26,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:54:56,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:00,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:00,614 INFO L93 Difference]: Finished difference Result 8076 states and 12166 transitions. [2022-11-25 17:55:00,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:55:00,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2022-11-25 17:55:00,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:00,653 INFO L225 Difference]: With dead ends: 8076 [2022-11-25 17:55:00,654 INFO L226 Difference]: Without dead ends: 8073 [2022-11-25 17:55:00,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:55:00,659 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 7915 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 14951 mSolverCounterSat, 2827 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8550 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 17782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2827 IncrementalHoareTripleChecker+Valid, 14951 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:00,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8550 Valid, 3997 Invalid, 17782 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2827 Valid, 14951 Invalid, 4 Unknown, 0 Unchecked, 71.3s Time] [2022-11-25 17:55:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8073 states. [2022-11-25 17:55:01,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8073 to 7759. [2022-11-25 17:55:01,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7759 states, 5822 states have (on average 1.4261422191686706) internal successors, (8303), 5906 states have internal predecessors, (8303), 1656 states have call successors, (1656), 270 states have call predecessors, (1656), 280 states have return successors, (1680), 1624 states have call predecessors, (1680), 1630 states have call successors, (1680) [2022-11-25 17:55:01,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7759 states to 7759 states and 11639 transitions. [2022-11-25 17:55:01,161 INFO L78 Accepts]: Start accepts. Automaton has 7759 states and 11639 transitions. Word has length 105 [2022-11-25 17:55:01,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:01,161 INFO L495 AbstractCegarLoop]: Abstraction has 7759 states and 11639 transitions. [2022-11-25 17:55:01,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:55:01,162 INFO L276 IsEmpty]: Start isEmpty. Operand 7759 states and 11639 transitions. [2022-11-25 17:55:01,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-25 17:55:01,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:01,171 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:01,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:55:01,172 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:55:01,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:01,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1334581642, now seen corresponding path program 1 times [2022-11-25 17:55:01,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:01,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314521118] [2022-11-25 17:55:01,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:01,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:55:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:55:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:55:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:55:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:55:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:55:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:55:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:55:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:55:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 17:55:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 17:55:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 17:55:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 17:55:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:02,369 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 17:55:02,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:02,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314521118] [2022-11-25 17:55:02,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314521118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:02,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:02,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:55:02,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610414925] [2022-11-25 17:55:02,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:02,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:55:02,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:02,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:55:02,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:55:02,372 INFO L87 Difference]: Start difference. First operand 7759 states and 11639 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 17:55:06,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:08,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:12,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:22,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:55:39,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:09,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:14,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:56:14,970 INFO L93 Difference]: Finished difference Result 15839 states and 23818 transitions. [2022-11-25 17:56:14,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:56:14,971 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 132 [2022-11-25 17:56:14,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:56:15,013 INFO L225 Difference]: With dead ends: 15839 [2022-11-25 17:56:15,013 INFO L226 Difference]: Without dead ends: 8095 [2022-11-25 17:56:15,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:56:15,039 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 7110 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 16803 mSolverCounterSat, 2676 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7629 SdHoareTripleChecker+Valid, 4184 SdHoareTripleChecker+Invalid, 19484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2676 IncrementalHoareTripleChecker+Valid, 16803 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 71.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:56:15,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7629 Valid, 4184 Invalid, 19484 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2676 Valid, 16803 Invalid, 5 Unknown, 0 Unchecked, 71.4s Time] [2022-11-25 17:56:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8095 states. [2022-11-25 17:56:15,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8095 to 7756. [2022-11-25 17:56:15,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7756 states, 5821 states have (on average 1.425528259749184) internal successors, (8298), 5905 states have internal predecessors, (8298), 1654 states have call successors, (1654), 270 states have call predecessors, (1654), 280 states have return successors, (1678), 1622 states have call predecessors, (1678), 1628 states have call successors, (1678) [2022-11-25 17:56:15,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7756 states to 7756 states and 11630 transitions. [2022-11-25 17:56:15,561 INFO L78 Accepts]: Start accepts. Automaton has 7756 states and 11630 transitions. Word has length 132 [2022-11-25 17:56:15,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:56:15,561 INFO L495 AbstractCegarLoop]: Abstraction has 7756 states and 11630 transitions. [2022-11-25 17:56:15,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 17:56:15,562 INFO L276 IsEmpty]: Start isEmpty. Operand 7756 states and 11630 transitions. [2022-11-25 17:56:15,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-25 17:56:15,573 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:56:15,574 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:56:15,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:56:15,574 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:56:15,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:56:15,575 INFO L85 PathProgramCache]: Analyzing trace with hash 290938195, now seen corresponding path program 1 times [2022-11-25 17:56:15,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:56:15,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306702275] [2022-11-25 17:56:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:56:15,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:56:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:56:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:56:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:56:16,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:56:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:56:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:56:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:56:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:56:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:56:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:56:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:16,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:56:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:17,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:56:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:17,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 17:56:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:17,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:56:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:56:17,029 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 17:56:17,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:56:17,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306702275] [2022-11-25 17:56:17,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306702275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:56:17,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:56:17,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:56:17,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51478263] [2022-11-25 17:56:17,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:56:17,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:56:17,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:56:17,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:56:17,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:56:17,032 INFO L87 Difference]: Start difference. First operand 7756 states and 11630 transitions. Second operand has 8 states, 8 states have (on average 12.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-25 17:56:19,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:22,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:25,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:27,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:29,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:31,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:56:46,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:04,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:35,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:57:40,900 INFO L93 Difference]: Finished difference Result 16115 states and 24251 transitions. [2022-11-25 17:57:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:57:40,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 139 [2022-11-25 17:57:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:57:40,932 INFO L225 Difference]: With dead ends: 16115 [2022-11-25 17:57:40,932 INFO L226 Difference]: Without dead ends: 8380 [2022-11-25 17:57:40,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:57:40,957 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 8083 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 16741 mSolverCounterSat, 3823 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8637 SdHoareTripleChecker+Valid, 3355 SdHoareTripleChecker+Invalid, 20571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3823 IncrementalHoareTripleChecker+Valid, 16741 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:57:40,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8637 Valid, 3355 Invalid, 20571 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3823 Valid, 16741 Invalid, 7 Unknown, 0 Unchecked, 82.4s Time] [2022-11-25 17:57:40,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8380 states. [2022-11-25 17:57:41,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8380 to 7759. [2022-11-25 17:57:41,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7759 states, 5823 states have (on average 1.4253821054439293) internal successors, (8300), 5908 states have internal predecessors, (8300), 1654 states have call successors, (1654), 270 states have call predecessors, (1654), 281 states have return successors, (1683), 1622 states have call predecessors, (1683), 1628 states have call successors, (1683) [2022-11-25 17:57:41,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7759 states to 7759 states and 11637 transitions. [2022-11-25 17:57:41,650 INFO L78 Accepts]: Start accepts. Automaton has 7759 states and 11637 transitions. Word has length 139 [2022-11-25 17:57:41,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:57:41,651 INFO L495 AbstractCegarLoop]: Abstraction has 7759 states and 11637 transitions. [2022-11-25 17:57:41,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-25 17:57:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 7759 states and 11637 transitions. [2022-11-25 17:57:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-25 17:57:41,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:57:41,664 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:57:41,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:57:41,664 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:57:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:57:41,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1494989680, now seen corresponding path program 1 times [2022-11-25 17:57:41,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:57:41,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387976404] [2022-11-25 17:57:41,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:57:41,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:57:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:42,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:57:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:42,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:57:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:42,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:57:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:57:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:57:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:57:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:57:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:57:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-25 17:57:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:57:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:57:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:57:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 17:57:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:57:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:57:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 17:57:43,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:57:43,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387976404] [2022-11-25 17:57:43,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387976404] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:57:43,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075546997] [2022-11-25 17:57:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:57:43,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:57:43,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:57:43,333 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:57:43,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:57:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:57:46,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 10290 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:57:46,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:57:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 17:57:46,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:57:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-25 17:57:46,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075546997] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:57:46,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:57:46,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2022-11-25 17:57:46,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606882524] [2022-11-25 17:57:46,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:57:46,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 17:57:46,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:57:46,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 17:57:46,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:57:46,920 INFO L87 Difference]: Start difference. First operand 7759 states and 11637 transitions. Second operand has 19 states, 19 states have (on average 11.736842105263158) internal successors, (223), 14 states have internal predecessors, (223), 3 states have call successors, (46), 7 states have call predecessors, (46), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-25 17:57:51,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:53,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:55,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:56,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:57:58,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:58:02,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:58:04,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:58:08,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:58:25,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:58:53,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:59:45,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:59:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:59:53,693 INFO L93 Difference]: Finished difference Result 16247 states and 24458 transitions. [2022-11-25 17:59:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 17:59:53,694 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.736842105263158) internal successors, (223), 14 states have internal predecessors, (223), 3 states have call successors, (46), 7 states have call predecessors, (46), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 150 [2022-11-25 17:59:53,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:59:53,726 INFO L225 Difference]: With dead ends: 16247 [2022-11-25 17:59:53,726 INFO L226 Difference]: Without dead ends: 8505 [2022-11-25 17:59:53,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2022-11-25 17:59:53,744 INFO L413 NwaCegarLoop]: 1068 mSDtfsCounter, 5217 mSDsluCounter, 5708 mSDsCounter, 0 mSdLazyCounter, 30361 mSolverCounterSat, 3188 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5765 SdHoareTripleChecker+Valid, 6776 SdHoareTripleChecker+Invalid, 33555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 3188 IncrementalHoareTripleChecker+Valid, 30361 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:59:53,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5765 Valid, 6776 Invalid, 33555 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [3188 Valid, 30361 Invalid, 6 Unknown, 0 Unchecked, 125.0s Time] [2022-11-25 17:59:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8505 states. [2022-11-25 17:59:54,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8505 to 7779. [2022-11-25 17:59:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7779 states, 5841 states have (on average 1.4242424242424243) internal successors, (8319), 5926 states have internal predecessors, (8319), 1656 states have call successors, (1656), 270 states have call predecessors, (1656), 281 states have return successors, (1685), 1624 states have call predecessors, (1685), 1630 states have call successors, (1685) [2022-11-25 17:59:54,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7779 states to 7779 states and 11660 transitions. [2022-11-25 17:59:54,264 INFO L78 Accepts]: Start accepts. Automaton has 7779 states and 11660 transitions. Word has length 150 [2022-11-25 17:59:54,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:59:54,265 INFO L495 AbstractCegarLoop]: Abstraction has 7779 states and 11660 transitions. [2022-11-25 17:59:54,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.736842105263158) internal successors, (223), 14 states have internal predecessors, (223), 3 states have call successors, (46), 7 states have call predecessors, (46), 2 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-25 17:59:54,265 INFO L276 IsEmpty]: Start isEmpty. Operand 7779 states and 11660 transitions. [2022-11-25 17:59:54,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-25 17:59:54,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:59:54,280 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:54,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:59:54,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42d006cf-1e38-4fb7-b81e-3f128b86b1e2/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:59:54,495 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:59:54,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:54,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1999351199, now seen corresponding path program 1 times [2022-11-25 17:59:54,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:54,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892116640] [2022-11-25 17:59:54,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:54,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:59:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:59:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 17:59:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 17:59:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:59:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:59:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 17:59:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 17:59:55,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 17:59:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-11-25 17:59:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 17:59:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:59:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 17:59:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:59:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:59:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 17:59:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 17:59:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:59:55,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-25 17:59:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,627 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-25 17:59:55,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:55,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892116640] [2022-11-25 17:59:55,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892116640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:55,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:55,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:59:55,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549357798] [2022-11-25 17:59:55,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:55,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:59:55,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:55,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:59:55,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:59:55,630 INFO L87 Difference]: Start difference. First operand 7779 states and 11660 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 18:00:00,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 18:00:11,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 18:00:26,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 18:00:54,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []