./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b --- 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 23:14:58,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:14:58,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:14:58,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:14:58,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:14:58,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:14:58,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:14:58,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:14:58,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:14:58,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:14:58,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:14:58,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:14:58,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:14:58,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:14:58,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:14:58,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:14:58,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:14:58,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:14:58,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:14:58,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:14:58,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:14:58,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:14:58,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:14:58,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:14:58,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:14:58,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:14:58,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:14:58,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:14:58,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:14:58,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:14:58,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:14:58,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:14:58,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:14:58,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:14:58,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:14:58,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:14:58,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:14:58,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:14:58,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:14:58,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:14:58,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:14:58,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:14:58,420 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:14:58,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:14:58,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:14:58,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:14:58,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:14:58,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:14:58,422 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:14:58,423 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:14:58,423 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:14:58,423 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:14:58,423 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:14:58,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:14:58,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:14:58,424 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:14:58,424 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:14:58,425 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:14:58,425 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:14:58,425 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:14:58,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:14:58,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:14:58,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:14:58,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:14:58,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:14:58,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:14:58,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:14:58,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:14:58,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:14:58,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:14:58,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:14:58,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:14:58,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:14:58,429 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:14:58,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:14:58,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:14:58,430 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:14:58,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:14:58,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:14:58,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:14:58,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bd4d18c7774801c1dd2fcc01cd37afd9da2c99096cf08f4bd160d17156b286b [2022-11-25 23:14:58,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:14:58,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:14:58,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:14:58,749 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:14:58,750 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:14:58,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-25 23:15:02,120 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:15:02,602 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:15:02,603 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-25 23:15:02,636 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/data/9841c8659/3d2ed70049fa4560a0aae51a66524ee5/FLAG2ca55a40d [2022-11-25 23:15:02,652 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/data/9841c8659/3d2ed70049fa4560a0aae51a66524ee5 [2022-11-25 23:15:02,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:15:02,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:15:02,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:15:02,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:15:02,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:15:02,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:15:02" (1/1) ... [2022-11-25 23:15:02,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78777b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:02, skipping insertion in model container [2022-11-25 23:15:02,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:15:02" (1/1) ... [2022-11-25 23:15:02,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:15:02,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:15:03,511 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:15:03,514 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:15:03,560 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:03,651 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 23:15:03,656 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 23:15:03,671 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 23:15:03,675 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 23:15:03,679 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 23:15:03,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:15:03,728 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:15:03,738 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-11-25 23:15:03,744 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:15:03,747 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-11-25 23:15:03,748 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-11-25 23:15:03,749 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-11-25 23:15:03,755 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:03,765 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:03,765 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:03,767 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:03,773 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:03,774 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:03,777 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-11-25 23:15:03,778 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:15:03,780 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-11-25 23:15:03,781 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:15:03,785 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-11-25 23:15:03,787 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:15:03,789 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:15:03,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:15:03,819 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:15:03,828 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 23:15:03,831 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 23:15:03,835 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:15:03,836 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 23:15:03,839 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_2add654d-c283-4b79-9db0-3ec4feb3af9b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2022-11-25 23:15:03,854 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:03,860 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:03,877 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:03,907 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:03,911 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:03,912 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:03,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:15:03,954 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:15:04,088 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:15:04,092 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:15:04,095 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:04,106 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 23:15:04,107 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 23:15:04,108 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 23:15:04,109 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 23:15:04,110 WARN L623 FunctionHandler]: Unknown extern function input_event [2022-11-25 23:15:04,127 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:15:04,131 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:15:04,137 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_coherent [2022-11-25 23:15:04,138 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:15:04,140 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-11-25 23:15:04,142 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-11-25 23:15:04,143 WARN L623 FunctionHandler]: Unknown extern function strlcat [2022-11-25 23:15:04,156 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:04,157 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:04,157 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:04,158 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:04,159 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:04,159 WARN L623 FunctionHandler]: Unknown extern function input_set_abs_params [2022-11-25 23:15:04,162 WARN L623 FunctionHandler]: Unknown extern function input_register_device [2022-11-25 23:15:04,163 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:15:04,165 WARN L623 FunctionHandler]: Unknown extern function input_free_device [2022-11-25 23:15:04,165 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:15:04,167 WARN L623 FunctionHandler]: Unknown extern function input_unregister_device [2022-11-25 23:15:04,168 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 23:15:04,169 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:15:04,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:15:04,178 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:15:04,185 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 23:15:04,187 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-11-25 23:15:04,189 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 23:15:04,189 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 23:15:04,190 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_2add654d-c283-4b79-9db0-3ec4feb3af9b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i[113815,113828] [2022-11-25 23:15:04,197 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:04,200 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:04,209 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:04,219 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:04,223 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:04,224 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:15:04,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:15:04,266 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:15:04,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04 WrapperNode [2022-11-25 23:15:04,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:15:04,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:15:04,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:15:04,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:15:04,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,369 INFO L138 Inliner]: procedures = 109, calls = 318, calls flagged for inlining = 49, calls inlined = 43, statements flattened = 800 [2022-11-25 23:15:04,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:15:04,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:15:04,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:15:04,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:15:04,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:15:04,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:15:04,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:15:04,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:15:04,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (1/1) ... [2022-11-25 23:15:04,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:15:04,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:15:04,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:15:04,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:15:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:15:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:15:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:15:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:15:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:15:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:15:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:15:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:15:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:15:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-11-25 23:15:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-11-25 23:15:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:15:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 23:15:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 23:15:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:15:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:15:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure usb_acecad_disconnect [2022-11-25 23:15:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_acecad_disconnect [2022-11-25 23:15:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-25 23:15:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-25 23:15:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 23:15:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 23:15:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:15:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:15:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:15:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:15:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:15:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-11-25 23:15:04,667 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-11-25 23:15:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-25 23:15:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-25 23:15:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_7 [2022-11-25 23:15:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_7 [2022-11-25 23:15:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:15:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:15:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:15:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 23:15:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 23:15:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 23:15:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 23:15:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:15:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:15:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:15:05,050 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:15:05,068 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:15:05,247 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:15:06,011 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:15:06,319 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:15:06,319 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 23:15:06,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:06 BoogieIcfgContainer [2022-11-25 23:15:06,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:15:06,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:15:06,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:15:06,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:15:06,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:15:02" (1/3) ... [2022-11-25 23:15:06,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e647fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:15:06, skipping insertion in model container [2022-11-25 23:15:06,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:15:04" (2/3) ... [2022-11-25 23:15:06,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e647fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:15:06, skipping insertion in model container [2022-11-25 23:15:06,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:15:06" (3/3) ... [2022-11-25 23:15:06,343 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-a450319-1-144_1a-drivers--input--tablet--acecad.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-25 23:15:06,366 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:15:06,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:15:06,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:15:06,450 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a4c9364, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:15:06,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:15:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 101 states have (on average 1.4158415841584158) internal successors, (143), 112 states have internal predecessors, (143), 43 states have call successors, (43), 16 states have call predecessors, (43), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-11-25 23:15:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 23:15:06,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:06,468 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 23:15:06,469 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:06,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1826625327, now seen corresponding path program 1 times [2022-11-25 23:15:06,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:06,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271107720] [2022-11-25 23:15:06,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:06,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:07,128 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 23:15:07,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:07,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271107720] [2022-11-25 23:15:07,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271107720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:07,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:07,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:15:07,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439310813] [2022-11-25 23:15:07,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:07,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:15:07,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:07,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:15:07,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:07,181 INFO L87 Difference]: Start difference. First operand has 161 states, 101 states have (on average 1.4158415841584158) internal successors, (143), 112 states have internal predecessors, (143), 43 states have call successors, (43), 16 states have call predecessors, (43), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 23:15:08,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:08,638 INFO L93 Difference]: Finished difference Result 459 states and 642 transitions. [2022-11-25 23:15:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:15:08,644 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-11-25 23:15:08,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:08,657 INFO L225 Difference]: With dead ends: 459 [2022-11-25 23:15:08,657 INFO L226 Difference]: Without dead ends: 289 [2022-11-25 23:15:08,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:08,666 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 190 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:08,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 400 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-25 23:15:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-11-25 23:15:08,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 289. [2022-11-25 23:15:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 188 states have (on average 1.3457446808510638) internal successors, (253), 195 states have internal predecessors, (253), 72 states have call successors, (72), 29 states have call predecessors, (72), 28 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-11-25 23:15:08,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 393 transitions. [2022-11-25 23:15:08,754 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 393 transitions. Word has length 23 [2022-11-25 23:15:08,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:08,755 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 393 transitions. [2022-11-25 23:15:08,755 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 23:15:08,755 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 393 transitions. [2022-11-25 23:15:08,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-25 23:15:08,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:08,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:08,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:15:08,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:08,759 INFO L85 PathProgramCache]: Analyzing trace with hash -121655418, now seen corresponding path program 1 times [2022-11-25 23:15:08,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:08,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395535266] [2022-11-25 23:15:08,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:08,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:09,000 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:15:09,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:09,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395535266] [2022-11-25 23:15:09,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395535266] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:09,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:09,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:15:09,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452486135] [2022-11-25 23:15:09,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:09,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:15:09,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:09,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:15:09,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:09,005 INFO L87 Difference]: Start difference. First operand 289 states and 393 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:15:09,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:09,803 INFO L93 Difference]: Finished difference Result 475 states and 637 transitions. [2022-11-25 23:15:09,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:15:09,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2022-11-25 23:15:09,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:09,808 INFO L225 Difference]: With dead ends: 475 [2022-11-25 23:15:09,809 INFO L226 Difference]: Without dead ends: 472 [2022-11-25 23:15:09,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:09,811 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:09,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 360 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 23:15:09,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2022-11-25 23:15:09,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 468. [2022-11-25 23:15:09,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 308 states have (on average 1.3409090909090908) internal successors, (413), 321 states have internal predecessors, (413), 111 states have call successors, (111), 49 states have call predecessors, (111), 48 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-25 23:15:09,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 631 transitions. [2022-11-25 23:15:09,864 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 631 transitions. Word has length 37 [2022-11-25 23:15:09,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:09,865 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 631 transitions. [2022-11-25 23:15:09,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:15:09,865 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 631 transitions. [2022-11-25 23:15:09,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 23:15:09,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:09,867 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:09,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:15:09,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:09,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:09,869 INFO L85 PathProgramCache]: Analyzing trace with hash 523659392, now seen corresponding path program 1 times [2022-11-25 23:15:09,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:09,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133649589] [2022-11-25 23:15:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:09,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:09,982 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:15:09,983 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:09,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133649589] [2022-11-25 23:15:09,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133649589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:09,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:09,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:15:09,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58372867] [2022-11-25 23:15:09,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:09,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:15:09,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:09,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:15:09,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:09,992 INFO L87 Difference]: Start difference. First operand 468 states and 631 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:15:11,182 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 23:15:11,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:11,217 INFO L93 Difference]: Finished difference Result 470 states and 632 transitions. [2022-11-25 23:15:11,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:15:11,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2022-11-25 23:15:11,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:11,223 INFO L225 Difference]: With dead ends: 470 [2022-11-25 23:15:11,223 INFO L226 Difference]: Without dead ends: 467 [2022-11-25 23:15:11,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:11,226 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 192 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:11,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 173 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 23:15:11,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-11-25 23:15:11,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2022-11-25 23:15:11,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 308 states have (on average 1.3376623376623376) internal successors, (412), 320 states have internal predecessors, (412), 110 states have call successors, (110), 49 states have call predecessors, (110), 48 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-25 23:15:11,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 629 transitions. [2022-11-25 23:15:11,319 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 629 transitions. Word has length 38 [2022-11-25 23:15:11,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:11,320 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 629 transitions. [2022-11-25 23:15:11,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:15:11,320 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 629 transitions. [2022-11-25 23:15:11,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 23:15:11,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:11,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:11,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:15:11,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:11,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:11,327 INFO L85 PathProgramCache]: Analyzing trace with hash -946413111, now seen corresponding path program 1 times [2022-11-25 23:15:11,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:11,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682612144] [2022-11-25 23:15:11,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:11,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:15:11,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:11,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682612144] [2022-11-25 23:15:11,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682612144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:11,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:11,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:15:11,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632655084] [2022-11-25 23:15:11,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:11,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:15:11,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:11,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:15:11,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:11,506 INFO L87 Difference]: Start difference. First operand 467 states and 629 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:15:12,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:12,199 INFO L93 Difference]: Finished difference Result 469 states and 630 transitions. [2022-11-25 23:15:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:15:12,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2022-11-25 23:15:12,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:12,204 INFO L225 Difference]: With dead ends: 469 [2022-11-25 23:15:12,204 INFO L226 Difference]: Without dead ends: 466 [2022-11-25 23:15:12,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:12,207 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 189 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:12,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 171 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-25 23:15:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-11-25 23:15:12,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2022-11-25 23:15:12,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 308 states have (on average 1.3344155844155845) internal successors, (411), 319 states have internal predecessors, (411), 109 states have call successors, (109), 49 states have call predecessors, (109), 48 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-25 23:15:12,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 627 transitions. [2022-11-25 23:15:12,255 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 627 transitions. Word has length 39 [2022-11-25 23:15:12,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:12,256 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 627 transitions. [2022-11-25 23:15:12,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:15:12,257 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 627 transitions. [2022-11-25 23:15:12,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 23:15:12,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:12,259 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:12,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:15:12,259 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:12,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:12,260 INFO L85 PathProgramCache]: Analyzing trace with hash 725984419, now seen corresponding path program 1 times [2022-11-25 23:15:12,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:12,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58121386] [2022-11-25 23:15:12,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:12,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 23:15:12,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:12,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58121386] [2022-11-25 23:15:12,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58121386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:12,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:12,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:15:12,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596911858] [2022-11-25 23:15:12,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:12,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:15:12,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:12,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:15:12,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:12,426 INFO L87 Difference]: Start difference. First operand 466 states and 627 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:15:12,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:12,871 INFO L93 Difference]: Finished difference Result 468 states and 628 transitions. [2022-11-25 23:15:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:15:12,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2022-11-25 23:15:12,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:12,876 INFO L225 Difference]: With dead ends: 468 [2022-11-25 23:15:12,877 INFO L226 Difference]: Without dead ends: 460 [2022-11-25 23:15:12,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:12,879 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 186 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:12,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 170 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:15:12,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-11-25 23:15:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2022-11-25 23:15:12,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 303 states have (on average 1.33003300330033) internal successors, (403), 313 states have internal predecessors, (403), 108 states have call successors, (108), 49 states have call predecessors, (108), 48 states have return successors, (107), 105 states have call predecessors, (107), 107 states have call successors, (107) [2022-11-25 23:15:12,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 618 transitions. [2022-11-25 23:15:12,938 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 618 transitions. Word has length 40 [2022-11-25 23:15:12,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:12,939 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 618 transitions. [2022-11-25 23:15:12,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 23:15:12,939 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 618 transitions. [2022-11-25 23:15:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-25 23:15:12,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:12,944 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:12,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:15:12,944 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:12,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:12,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1801089406, now seen corresponding path program 1 times [2022-11-25 23:15:12,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:12,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313716619] [2022-11-25 23:15:12,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:12,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-25 23:15:13,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:13,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313716619] [2022-11-25 23:15:13,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313716619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:15:13,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:15:13,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:15:13,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494084373] [2022-11-25 23:15:13,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:15:13,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:15:13,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:15:13,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:15:13,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:13,128 INFO L87 Difference]: Start difference. First operand 460 states and 618 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 23:15:14,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:15:14,509 INFO L93 Difference]: Finished difference Result 748 states and 1004 transitions. [2022-11-25 23:15:14,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:15:14,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2022-11-25 23:15:14,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:15:14,512 INFO L225 Difference]: With dead ends: 748 [2022-11-25 23:15:14,513 INFO L226 Difference]: Without dead ends: 299 [2022-11-25 23:15:14,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:15:14,516 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 31 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 23:15:14,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 328 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 23:15:14,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2022-11-25 23:15:14,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 294. [2022-11-25 23:15:14,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 204 states have (on average 1.3431372549019607) internal successors, (274), 209 states have internal predecessors, (274), 59 states have call successors, (59), 31 states have call predecessors, (59), 30 states have return successors, (58), 57 states have call predecessors, (58), 58 states have call successors, (58) [2022-11-25 23:15:14,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2022-11-25 23:15:14,560 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 108 [2022-11-25 23:15:14,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:15:14,560 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2022-11-25 23:15:14,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 23:15:14,561 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2022-11-25 23:15:14,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 23:15:14,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:15:14,563 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:15:14,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:15:14,564 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:15:14,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:15:14,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1033298602, now seen corresponding path program 1 times [2022-11-25 23:15:14,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:15:14,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461866446] [2022-11-25 23:15:14,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:14,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:15:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-25 23:15:15,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:15:15,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461866446] [2022-11-25 23:15:15,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461866446] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:15:15,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165014224] [2022-11-25 23:15:15,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:15:15,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:15:15,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:15:15,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:15:15,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:15:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:15:15,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-25 23:15:15,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:15:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 33 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 23:15:15,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:15:16,365 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-25 23:15:16,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165014224] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:15:16,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1101141995] [2022-11-25 23:15:16,391 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2022-11-25 23:15:16,391 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:15:16,396 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:15:16,402 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:15:16,403 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:15:17,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:15:17,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 23:15:17,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:15:17,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:17,858 INFO L217 Elim1Store]: Index analysis took 107 ms [2022-11-25 23:15:17,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 65 select indices, 65 select index equivalence classes, 715 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 0 case distinctions, treesize of input 546 treesize of output 196 [2022-11-25 23:15:18,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:18,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 65 select indices, 65 select index equivalence classes, 715 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 0 case distinctions, treesize of input 546 treesize of output 196 [2022-11-25 23:15:20,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-25 23:15:20,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:15:20,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:15:20,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:15:20,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-25 23:15:20,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:15:28,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:15:28,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:15:28,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-25 23:15:29,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:15:29,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:15:29,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-25 23:15:31,142 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 683 for LOIs [2022-11-25 23:15:33,707 INFO L321 Elim1Store]: treesize reduction 216, result has 33.5 percent of original size [2022-11-25 23:15:33,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 79 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 24 case distinctions, treesize of input 77 treesize of output 161 [2022-11-25 23:15:33,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 79 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 104 [2022-11-25 23:15:34,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:34,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:15:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:34,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-25 23:15:36,589 INFO L321 Elim1Store]: treesize reduction 144, result has 43.1 percent of original size [2022-11-25 23:15:36,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 67 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 12 case distinctions, treesize of input 69 treesize of output 152 [2022-11-25 23:15:37,101 INFO L321 Elim1Store]: treesize reduction 216, result has 33.5 percent of original size [2022-11-25 23:15:37,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 79 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 24 case distinctions, treesize of input 77 treesize of output 161 [2022-11-25 23:15:37,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:37,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:15:37,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:37,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-25 23:15:39,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:39,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-25 23:15:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:15:39,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-25 23:15:39,872 INFO L321 Elim1Store]: treesize reduction 144, result has 43.1 percent of original size [2022-11-25 23:15:39,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 12 select indices, 12 select index equivalence classes, 67 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 12 case distinctions, treesize of input 69 treesize of output 152 [2022-11-25 23:15:40,305 INFO L321 Elim1Store]: treesize reduction 216, result has 33.5 percent of original size [2022-11-25 23:15:40,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 79 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 24 case distinctions, treesize of input 77 treesize of output 161 [2022-11-25 23:15:40,602 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 718 for LOIs [2022-11-25 23:15:41,441 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 100 for LOIs [2022-11-25 23:15:41,460 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 99 for LOIs [2022-11-25 23:15:41,483 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:15:54,744 WARN L233 SmtUtils]: Spent 10.68s on a formula simplification. DAG size of input: 683 DAG size of output: 635 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:16:07,663 WARN L233 SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 696 DAG size of output: 648 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:16:18,908 WARN L233 SmtUtils]: Spent 10.85s on a formula simplification. DAG size of input: 718 DAG size of output: 600 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:16:32,091 WARN L233 SmtUtils]: Spent 12.71s on a formula simplification. DAG size of input: 719 DAG size of output: 601 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:16:46,044 WARN L233 SmtUtils]: Spent 9.36s on a formula simplification. DAG size of input: 585 DAG size of output: 480 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:16:53,654 WARN L233 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 475 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:17:00,970 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 477 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:17:08,194 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 465 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:17:15,499 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 477 DAG size of output: 429 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:17:22,873 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 479 DAG size of output: 431 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:17:29,993 WARN L233 SmtUtils]: Spent 6.57s on a formula simplification. DAG size of input: 467 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:17:53,769 WARN L233 SmtUtils]: Spent 6.63s on a formula simplification. DAG size of input: 467 DAG size of output: 419 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:17:58,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1101141995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:17:58,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-25 23:17:58,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [5, 7, 7] total 47 [2022-11-25 23:17:58,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037392535] [2022-11-25 23:17:58,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:17:58,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-25 23:17:58,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:17:58,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-25 23:17:58,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=2020, Unknown=0, NotChecked=0, Total=2162 [2022-11-25 23:17:58,765 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand has 35 states, 27 states have (on average 2.0) internal successors, (54), 25 states have internal predecessors, (54), 6 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-25 23:18:07,034 WARN L233 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 861 DAG size of output: 582 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:18:15,893 WARN L233 SmtUtils]: Spent 8.30s on a formula simplification. DAG size of input: 874 DAG size of output: 595 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:18:22,929 WARN L233 SmtUtils]: Spent 6.58s on a formula simplification. DAG size of input: 736 DAG size of output: 577 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:18:30,279 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 737 DAG size of output: 579 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:19:15,234 WARN L233 SmtUtils]: Spent 6.62s on a formula simplification. DAG size of input: 559 DAG size of output: 434 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:19:22,244 WARN L233 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 520 DAG size of output: 461 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:19:33,023 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 435 DAG size of output: 404 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:19:39,804 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 448 DAG size of output: 426 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:19:46,237 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 440 DAG size of output: 418 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:20:25,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:25,424 INFO L93 Difference]: Finished difference Result 710 states and 975 transitions. [2022-11-25 23:20:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-11-25 23:20:25,426 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 27 states have (on average 2.0) internal successors, (54), 25 states have internal predecessors, (54), 6 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 114 [2022-11-25 23:20:25,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:25,428 INFO L225 Difference]: With dead ends: 710 [2022-11-25 23:20:25,428 INFO L226 Difference]: Without dead ends: 442 [2022-11-25 23:20:25,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 880 ImplicationChecksByTransitivity, 258.9s TimeCoverageRelationStatistics Valid=315, Invalid=4515, Unknown=0, NotChecked=0, Total=4830 [2022-11-25 23:20:25,432 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 84 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 3023 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 3062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:25,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 2652 Invalid, 3062 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 3023 Invalid, 0 Unknown, 0 Unchecked, 24.8s Time] [2022-11-25 23:20:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-11-25 23:20:25,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 382. [2022-11-25 23:20:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 284 states have (on average 1.3626760563380282) internal successors, (387), 288 states have internal predecessors, (387), 63 states have call successors, (63), 35 states have call predecessors, (63), 34 states have return successors, (63), 62 states have call predecessors, (63), 62 states have call successors, (63) [2022-11-25 23:20:25,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 513 transitions. [2022-11-25 23:20:25,568 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 513 transitions. Word has length 114 [2022-11-25 23:20:25,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:25,569 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 513 transitions. [2022-11-25 23:20:25,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 27 states have (on average 2.0) internal successors, (54), 25 states have internal predecessors, (54), 6 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-25 23:20:25,570 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 513 transitions. [2022-11-25 23:20:25,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-25 23:20:25,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:25,581 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:20:25,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:20:25,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:20:25,790 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:20:25,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:25,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1358061772, now seen corresponding path program 1 times [2022-11-25 23:20:25,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:25,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899991991] [2022-11-25 23:20:25,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:25,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:26,772 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 23:20:26,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:26,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899991991] [2022-11-25 23:20:26,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899991991] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:20:26,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142762978] [2022-11-25 23:20:26,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:26,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:20:26,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:20:26,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:20:26,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:20:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:27,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 1301 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-25 23:20:27,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:20:27,342 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 23:20:27,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:20:27,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142762978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:27,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:20:27,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2022-11-25 23:20:27,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109771886] [2022-11-25 23:20:27,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:27,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:20:27,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:27,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:20:27,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:20:27,346 INFO L87 Difference]: Start difference. First operand 382 states and 513 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 23:20:29,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:29,500 INFO L93 Difference]: Finished difference Result 747 states and 1025 transitions. [2022-11-25 23:20:29,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:20:29,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) Word has length 118 [2022-11-25 23:20:29,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:29,504 INFO L225 Difference]: With dead ends: 747 [2022-11-25 23:20:29,504 INFO L226 Difference]: Without dead ends: 479 [2022-11-25 23:20:29,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:20:29,506 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 40 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:29,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1201 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:20:29,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2022-11-25 23:20:29,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 394. [2022-11-25 23:20:29,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 292 states have (on average 1.3527397260273972) internal successors, (395), 296 states have internal predecessors, (395), 63 states have call successors, (63), 35 states have call predecessors, (63), 38 states have return successors, (76), 66 states have call predecessors, (76), 62 states have call successors, (76) [2022-11-25 23:20:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 534 transitions. [2022-11-25 23:20:29,667 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 534 transitions. Word has length 118 [2022-11-25 23:20:29,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:29,670 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 534 transitions. [2022-11-25 23:20:29,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 23:20:29,670 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 534 transitions. [2022-11-25 23:20:29,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-25 23:20:29,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:29,675 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:20:29,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:20:29,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:20:29,883 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:20:29,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1081173230, now seen corresponding path program 2 times [2022-11-25 23:20:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:29,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694557925] [2022-11-25 23:20:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:29,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-25 23:20:30,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:30,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694557925] [2022-11-25 23:20:30,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694557925] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:20:30,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056788198] [2022-11-25 23:20:30,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:20:30,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:20:30,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:20:30,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:20:30,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:20:31,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:20:31,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:20:31,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-25 23:20:31,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:20:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-11-25 23:20:31,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:20:31,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056788198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:31,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:20:31,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-11-25 23:20:31,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531704567] [2022-11-25 23:20:31,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:31,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:20:31,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:31,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:20:31,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:20:31,495 INFO L87 Difference]: Start difference. First operand 394 states and 534 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-25 23:20:33,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:33,412 INFO L93 Difference]: Finished difference Result 519 states and 702 transitions. [2022-11-25 23:20:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:20:33,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 122 [2022-11-25 23:20:33,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:33,418 INFO L225 Difference]: With dead ends: 519 [2022-11-25 23:20:33,418 INFO L226 Difference]: Without dead ends: 514 [2022-11-25 23:20:33,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:20:33,419 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 52 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:33,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 492 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 23:20:33,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2022-11-25 23:20:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2022-11-25 23:20:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 376 states have (on average 1.3457446808510638) internal successors, (506), 382 states have internal predecessors, (506), 85 states have call successors, (85), 47 states have call predecessors, (85), 52 states have return successors, (104), 90 states have call predecessors, (104), 84 states have call successors, (104) [2022-11-25 23:20:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 695 transitions. [2022-11-25 23:20:33,590 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 695 transitions. Word has length 122 [2022-11-25 23:20:33,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:33,593 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 695 transitions. [2022-11-25 23:20:33,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-25 23:20:33,594 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 695 transitions. [2022-11-25 23:20:33,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-25 23:20:33,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:33,600 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:20:33,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:20:33,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:20:33,807 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:20:33,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:33,807 INFO L85 PathProgramCache]: Analyzing trace with hash -2120310946, now seen corresponding path program 1 times [2022-11-25 23:20:33,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:33,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527227701] [2022-11-25 23:20:33,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:33,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:34,295 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-25 23:20:34,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:34,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527227701] [2022-11-25 23:20:34,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527227701] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:20:34,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750995148] [2022-11-25 23:20:34,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:34,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:20:34,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:20:34,297 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:20:34,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:20:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:34,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1787 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:20:34,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:20:35,085 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-11-25 23:20:35,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:20:35,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750995148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:20:35,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:20:35,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 23:20:35,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810916109] [2022-11-25 23:20:35,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:20:35,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:20:35,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:20:35,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:20:35,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:20:35,088 INFO L87 Difference]: Start difference. First operand 514 states and 695 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 23:20:38,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:20:38,449 INFO L93 Difference]: Finished difference Result 1166 states and 1596 transitions. [2022-11-25 23:20:38,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:20:38,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 138 [2022-11-25 23:20:38,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:20:38,456 INFO L225 Difference]: With dead ends: 1166 [2022-11-25 23:20:38,456 INFO L226 Difference]: Without dead ends: 1161 [2022-11-25 23:20:38,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:20:38,458 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 398 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:20:38,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 828 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-25 23:20:38,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2022-11-25 23:20:38,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1065. [2022-11-25 23:20:38,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 754 states have (on average 1.3461538461538463) internal successors, (1015), 773 states have internal predecessors, (1015), 196 states have call successors, (196), 101 states have call predecessors, (196), 114 states have return successors, (241), 204 states have call predecessors, (241), 195 states have call successors, (241) [2022-11-25 23:20:38,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1452 transitions. [2022-11-25 23:20:38,678 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1452 transitions. Word has length 138 [2022-11-25 23:20:38,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:20:38,678 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1452 transitions. [2022-11-25 23:20:38,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 23:20:38,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1452 transitions. [2022-11-25 23:20:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 23:20:38,682 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:20:38,682 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:20:38,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:20:38,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:20:38,890 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:20:38,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:20:38,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1349063982, now seen corresponding path program 1 times [2022-11-25 23:20:38,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:20:38,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628489005] [2022-11-25 23:20:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:38,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:20:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-25 23:20:40,102 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:20:40,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628489005] [2022-11-25 23:20:40,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628489005] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:20:40,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477900316] [2022-11-25 23:20:40,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:20:40,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:20:40,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:20:40,104 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:20:40,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2add654d-c283-4b79-9db0-3ec4feb3af9b/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:20:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:20:40,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1805 conjuncts, 137 conjunts are in the unsatisfiable core [2022-11-25 23:20:40,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:20:40,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:20:40,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:20:41,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:20:41,205 WARN L859 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_778 (Array Int Int))) (= |c_#memory_int| (store |c_old(#memory_int)| |c_#Ultimate.meminit_#ptr.base| v_ArrVal_778))) is different from true [2022-11-25 23:20:41,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:20:41,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:20:41,349 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 23:20:41,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 23:20:41,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-25 23:20:41,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:20:41,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 23:20:41,732 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 23:20:41,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 23:20:42,199 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:20:42,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:20:42,592 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-25 23:20:42,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 23:20:42,983 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-11-25 23:20:42,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-11-25 23:20:43,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-25 23:20:43,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-25 23:20:43,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-11-25 23:20:43,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:43,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 26 [2022-11-25 23:20:43,729 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 32 proven. 49 refuted. 0 times theorem prover too weak. 15 trivial. 1 not checked. [2022-11-25 23:20:43,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:20:43,760 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_788 (Array Int Int)) (|ULTIMATE.start_usb_acecad_probe_~id#1.offset| Int)) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_usb_acecad_probe_~input_dev~0#1.base| v_ArrVal_788) |c_ULTIMATE.start_usb_acecad_probe_~id#1.base|) (+ 16 |ULTIMATE.start_usb_acecad_probe_~id#1.offset|)) 0)) is different from false [2022-11-25 23:20:43,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477900316] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:20:43,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [323922223] [2022-11-25 23:20:43,778 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-11-25 23:20:43,778 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:20:43,781 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:20:43,781 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:20:43,781 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:20:44,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:20:44,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 23:20:44,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-25 23:20:44,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 65 select indices, 65 select index equivalence classes, 715 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 0 case distinctions, treesize of input 546 treesize of output 196 [2022-11-25 23:20:44,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:44,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:20:45,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 65 select indices, 65 select index equivalence classes, 715 disjoint index pairs (out of 2080 index pairs), introduced 65 new quantified variables, introduced 0 case distinctions, treesize of input 546 treesize of output 196 [2022-11-25 23:20:49,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-25 23:20:49,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:20:49,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:20:49,630 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:20:49,634 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:20:49,635 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:20:50,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:20:50,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 23:20:50,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-25 23:20:50,958 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:20:50,960 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:20:50,972 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-25 23:20:59,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:20:59,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-25 23:21:10,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:21:10,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 23:21:10,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:21:12,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 216 [2022-11-25 23:21:12,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 216 [2022-11-25 23:21:12,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 23:21:12,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-11-25 23:21:12,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:21:12,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 269 treesize of output 251 [2022-11-25 23:21:12,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 263 treesize of output 245 [2022-11-25 23:21:15,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 45 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 78 [2022-11-25 23:21:15,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:15,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,007 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:21:16,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 72 treesize of output 74 [2022-11-25 23:21:16,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,125 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:21:16,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 72 treesize of output 74 [2022-11-25 23:21:16,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,249 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:21:16,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 37 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 71 treesize of output 92 [2022-11-25 23:21:16,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,528 INFO L217 Elim1Store]: Index analysis took 116 ms [2022-11-25 23:21:16,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 19 [2022-11-25 23:21:16,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 39 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 81 [2022-11-25 23:21:16,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:16,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2022-11-25 23:21:17,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 17 [2022-11-25 23:21:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:21:17,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 36 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 77 [2022-11-25 23:21:17,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:17,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2022-11-25 23:21:28,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:28,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:29,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,331 WARN L233 SmtUtils]: Spent 8.24s on a formula simplification. DAG size of input: 493 DAG size of output: 369 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 23:21:37,332 INFO L321 Elim1Store]: treesize reduction 2186, result has 44.8 percent of original size [2022-11-25 23:21:37,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 13 select indices, 13 select index equivalence classes, 55 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 104 case distinctions, treesize of input 1522 treesize of output 2791 [2022-11-25 23:21:37,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:37,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,299 INFO L321 Elim1Store]: treesize reduction 262, result has 39.6 percent of original size [2022-11-25 23:21:38,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 2250 treesize of output 2142 [2022-11-25 23:21:38,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:38,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,065 INFO L321 Elim1Store]: treesize reduction 164, result has 44.2 percent of original size [2022-11-25 23:21:39,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 2177 treesize of output 1973 [2022-11-25 23:21:39,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,732 INFO L321 Elim1Store]: treesize reduction 262, result has 39.6 percent of original size [2022-11-25 23:21:39,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 1649 treesize of output 1503 [2022-11-25 23:21:39,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:39,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:21:40,332 INFO L321 Elim1Store]: treesize reduction 164, result has 44.2 percent of original size [2022-11-25 23:21:40,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 17 case distinctions, treesize of input 1540 treesize of output 1298 [2022-11-25 23:23:58,068 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 480 DAG size of output: 480 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-25 23:25:32,224 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 473 DAG size of output: 473 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)