./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:10:20,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:10:20,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:10:20,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:10:20,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:10:20,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:10:20,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:10:20,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:10:20,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:10:20,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:10:20,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:10:20,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:10:20,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:10:20,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:10:21,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:10:21,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:10:21,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:10:21,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:10:21,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:10:21,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:10:21,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:10:21,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:10:21,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:10:21,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:10:21,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:10:21,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:10:21,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:10:21,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:10:21,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:10:21,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:10:21,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:10:21,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:10:21,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:10:21,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:10:21,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:10:21,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:10:21,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:10:21,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:10:21,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:10:21,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:10:21,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:10:21,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:10:21,087 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:10:21,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:10:21,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:10:21,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:10:21,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:10:21,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:10:21,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:10:21,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:10:21,091 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:10:21,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:10:21,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:10:21,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:10:21,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:10:21,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:10:21,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:10:21,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:10:21,093 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:10:21,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:10:21,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:10:21,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:10:21,094 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:10:21,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:10:21,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:10:21,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:10:21,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:10:21,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:10:21,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:10:21,096 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:10:21,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:10:21,096 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:10:21,096 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:10:21,097 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ede4537c48caea37472e4c8ac2076bad2737918f5afe1a2cfd1e12976491d8e [2022-11-25 17:10:21,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:10:21,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:10:21,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:10:21,413 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:10:21,414 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:10:21,416 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-11-25 17:10:24,440 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:10:25,019 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:10:25,020 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-11-25 17:10:25,064 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/data/71fa04292/c5094c3972fe419fb9846ba3104bcdd3/FLAG37b65fd8e [2022-11-25 17:10:25,085 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/data/71fa04292/c5094c3972fe419fb9846ba3104bcdd3 [2022-11-25 17:10:25,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:10:25,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:10:25,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:10:25,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:10:25,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:10:25,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:10:25" (1/1) ... [2022-11-25 17:10:25,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccb7f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:25, skipping insertion in model container [2022-11-25 17:10:25,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:10:25" (1/1) ... [2022-11-25 17:10:25,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:10:25,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:10:25,886 WARN L1266 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2022-11-25 17:10:25,887 WARN L1266 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2022-11-25 17:10:26,030 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:10:26,045 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:10:26,060 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:10:26,240 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_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2022-11-25 17:10:26,415 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:10:26,422 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:10:26,422 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 17:10:26,435 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 17:10:26,472 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 17:10:26,485 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:10:26,485 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 17:10:26,680 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 17:10:26,752 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 17:10:26,764 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:10:26,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:26,783 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 17:10:26,838 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 17:10:26,845 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-11-25 17:10:27,089 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,090 WARN L623 FunctionHandler]: Unknown extern function alloc_fddidev [2022-11-25 17:10:27,094 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,095 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 17:10:27,096 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,097 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 17:10:27,099 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 17:10:27,105 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,107 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 17:10:27,107 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,109 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 17:10:27,110 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,113 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 17:10:27,115 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:10:27,116 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:10:27,116 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:10:27,148 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,149 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,167 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,168 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,169 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,171 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,178 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,180 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,181 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,185 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,189 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,192 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:10:27,193 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,199 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,200 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,202 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,203 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,204 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,206 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,206 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,207 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,208 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,209 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,210 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,210 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,299 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,301 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,304 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,311 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,313 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,329 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:10:27,330 WARN L623 FunctionHandler]: Unknown extern function fddi_type_trans [2022-11-25 17:10:27,330 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:10:27,333 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,334 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:10:27,336 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:10:27,337 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 17:10:27,338 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 17:10:27,342 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:10:27,347 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:10:27,364 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 17:10:27,364 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:10:27,364 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:10:27,365 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:10:27,408 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 17:10:27,414 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 17:10:27,438 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:10:27,442 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_3 [2022-11-25 17:10:27,443 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_3 [2022-11-25 17:10:27,444 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 17:10:27,446 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 17:10:27,447 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-11-25 17:10:27,447 WARN L623 FunctionHandler]: Unknown extern function skb_copy [2022-11-25 17:10:27,448 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:10:27,448 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:10:27,449 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:10:27,450 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 17:10:27,450 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 17:10:27,451 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-11-25 17:10:27,452 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 17:10:27,452 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:10:27,453 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:10:27,454 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:10:27,455 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:10:27,455 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 17:10:27,456 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:10:27,464 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-11-25 17:10:27,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:10:27,523 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:10:27,670 WARN L1266 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5957] [2022-11-25 17:10:27,670 WARN L1266 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5958-5959] [2022-11-25 17:10:27,675 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:10:27,675 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:10:27,676 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:10:27,680 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_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[182958,182971] [2022-11-25 17:10:27,686 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:10:27,687 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-25 17:10:27,688 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-25 17:10:27,689 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-25 17:10:27,692 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 17:10:27,693 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:10:27,694 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 17:10:27,697 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 17:10:27,699 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 17:10:27,699 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 17:10:27,700 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,701 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 17:10:27,702 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_byte [2022-11-25 17:10:27,704 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_byte [2022-11-25 17:10:27,719 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,719 WARN L623 FunctionHandler]: Unknown extern function alloc_fddidev [2022-11-25 17:10:27,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,720 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-25 17:10:27,721 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,723 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 17:10:27,723 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 17:10:27,724 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,724 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 17:10:27,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,726 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-25 17:10:27,726 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,727 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 17:10:27,727 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:10:27,728 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:10:27,728 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:10:27,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,799 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,805 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,806 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,806 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,807 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,809 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,811 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,816 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:10:27,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,818 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,819 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,820 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,820 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,820 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,821 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,821 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,822 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,823 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,824 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,824 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,826 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,827 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,827 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,867 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,868 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,870 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,871 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,872 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 17:10:27,878 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,878 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 17:10:27,879 WARN L623 FunctionHandler]: Unknown extern function fddi_type_trans [2022-11-25 17:10:27,879 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 17:10:27,881 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:10:27,882 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:10:27,882 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:10:27,883 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 17:10:27,884 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 17:10:27,887 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:10:27,889 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 17:10:27,892 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 17:10:27,892 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:10:27,893 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 17:10:27,893 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-25 17:10:27,895 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-25 17:10:27,896 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-25 17:10:27,899 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:10:27,902 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_3 [2022-11-25 17:10:27,903 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_3 [2022-11-25 17:10:27,904 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 17:10:27,905 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 17:10:27,905 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-11-25 17:10:27,906 WARN L623 FunctionHandler]: Unknown extern function skb_copy [2022-11-25 17:10:27,906 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:10:27,906 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:10:27,907 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:10:27,907 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 17:10:27,908 WARN L623 FunctionHandler]: Unknown extern function pskb_expand_head [2022-11-25 17:10:27,908 WARN L623 FunctionHandler]: Unknown extern function skb_clone [2022-11-25 17:10:27,908 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 17:10:27,909 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:10:27,909 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:10:27,910 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 17:10:27,910 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 17:10:27,911 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 17:10:27,911 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 17:10:27,912 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-11-25 17:10:27,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:10:28,009 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:10:28,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28 WrapperNode [2022-11-25 17:10:28,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:10:28,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:10:28,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:10:28,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:10:28,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,249 INFO L138 Inliner]: procedures = 219, calls = 1605, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 3083 [2022-11-25 17:10:28,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:10:28,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:10:28,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:10:28,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:10:28,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,427 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:10:28,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:10:28,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:10:28,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:10:28,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (1/1) ... [2022-11-25 17:10:28,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:10:28,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:10:28,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:10:28,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:10:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 17:10:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 17:10:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 17:10:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 17:10:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 17:10:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 17:10:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-25 17:10:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-25 17:10:28,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:10:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:10:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-25 17:10:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-25 17:10:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 17:10:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 17:10:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-25 17:10:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-25 17:10:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 17:10:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 17:10:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:10:28,645 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:10:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 17:10:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 17:10:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-25 17:10:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-25 17:10:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 17:10:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 17:10:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:10:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2022-11-25 17:10:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2022-11-25 17:10:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:10:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-25 17:10:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-25 17:10:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 17:10:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 17:10:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:10:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-25 17:10:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-25 17:10:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:10:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2022-11-25 17:10:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2022-11-25 17:10:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-25 17:10:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-25 17:10:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2022-11-25 17:10:28,647 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2022-11-25 17:10:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 17:10:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 17:10:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-25 17:10:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-25 17:10:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 17:10:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 17:10:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2022-11-25 17:10:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2022-11-25 17:10:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2022-11-25 17:10:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2022-11-25 17:10:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-25 17:10:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-25 17:10:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2022-11-25 17:10:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2022-11-25 17:10:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 17:10:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 17:10:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 17:10:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2022-11-25 17:10:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2022-11-25 17:10:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2022-11-25 17:10:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2022-11-25 17:10:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 17:10:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 17:10:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:10:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-25 17:10:28,649 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-25 17:10:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-25 17:10:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-25 17:10:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:10:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2022-11-25 17:10:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2022-11-25 17:10:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 17:10:28,650 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 17:10:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-25 17:10:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-25 17:10:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2022-11-25 17:10:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2022-11-25 17:10:28,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 17:10:28,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 17:10:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-25 17:10:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-25 17:10:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-25 17:10:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-25 17:10:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:10:28,656 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-25 17:10:28,656 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-25 17:10:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-25 17:10:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-25 17:10:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-25 17:10:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-25 17:10:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:10:28,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:10:28,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:10:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-25 17:10:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-25 17:10:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2022-11-25 17:10:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2022-11-25 17:10:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:10:28,658 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2022-11-25 17:10:28,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2022-11-25 17:10:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 17:10:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 17:10:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:10:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2022-11-25 17:10:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2022-11-25 17:10:28,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-25 17:10:28,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-25 17:10:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2022-11-25 17:10:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2022-11-25 17:10:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2022-11-25 17:10:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2022-11-25 17:10:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2022-11-25 17:10:28,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2022-11-25 17:10:28,660 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 17:10:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 17:10:28,661 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-25 17:10:28,661 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-25 17:10:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-25 17:10:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-25 17:10:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:10:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2022-11-25 17:10:28,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2022-11-25 17:10:28,662 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-25 17:10:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-11-25 17:10:28,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:10:28,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:10:29,450 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:10:29,453 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:10:30,487 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 17:10:44,795 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:10:44,820 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:10:44,820 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:10:44,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:10:44 BoogieIcfgContainer [2022-11-25 17:10:44,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:10:44,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:10:44,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:10:44,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:10:44,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:10:25" (1/3) ... [2022-11-25 17:10:44,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355718d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:10:44, skipping insertion in model container [2022-11-25 17:10:44,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:10:28" (2/3) ... [2022-11-25 17:10:44,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355718d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:10:44, skipping insertion in model container [2022-11-25 17:10:44,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:10:44" (3/3) ... [2022-11-25 17:10:44,838 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2022-11-25 17:10:44,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:10:44,859 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:10:44,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:10:44,989 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@10ec6fad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:10:44,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:10:44,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 1147 states, 810 states have (on average 1.3222222222222222) internal successors, (1071), 833 states have internal predecessors, (1071), 279 states have call successors, (279), 57 states have call predecessors, (279), 56 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) [2022-11-25 17:10:45,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-25 17:10:45,035 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:10:45,036 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:10:45,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:10:45,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:10:45,046 INFO L85 PathProgramCache]: Analyzing trace with hash 729120917, now seen corresponding path program 1 times [2022-11-25 17:10:45,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:10:45,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126847560] [2022-11-25 17:10:45,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:10:45,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:10:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:45,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:10:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:45,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:10:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:10:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-25 17:10:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:46,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:10:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 17:10:46,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:46,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:10:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:46,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 17:10:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:46,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 17:10:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-25 17:10:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:10:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:10:46,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:10:46,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126847560] [2022-11-25 17:10:46,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126847560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:10:46,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:10:46,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:10:46,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914873948] [2022-11-25 17:10:46,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:10:46,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:10:46,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:10:46,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:10:46,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:10:46,220 INFO L87 Difference]: Start difference. First operand has 1147 states, 810 states have (on average 1.3222222222222222) internal successors, (1071), 833 states have internal predecessors, (1071), 279 states have call successors, (279), 57 states have call predecessors, (279), 56 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 17:10:49,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:10:50,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:10:52,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:10:54,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:10:55,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:10:59,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:08,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:14,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:19,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:26,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:11:26,326 INFO L93 Difference]: Finished difference Result 3662 states and 5400 transitions. [2022-11-25 17:11:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:11:26,330 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2022-11-25 17:11:26,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:11:26,378 INFO L225 Difference]: With dead ends: 3662 [2022-11-25 17:11:26,379 INFO L226 Difference]: Without dead ends: 2480 [2022-11-25 17:11:26,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:11:26,405 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 3854 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 7139 mSolverCounterSat, 2513 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4149 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 9656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2513 IncrementalHoareTripleChecker+Valid, 7139 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:11:26,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4149 Valid, 3833 Invalid, 9656 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2513 Valid, 7139 Invalid, 4 Unknown, 0 Unchecked, 39.1s Time] [2022-11-25 17:11:26,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2022-11-25 17:11:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 2190. [2022-11-25 17:11:26,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 1553 states have (on average 1.3116548615582744) internal successors, (2037), 1585 states have internal predecessors, (2037), 525 states have call successors, (525), 112 states have call predecessors, (525), 111 states have return successors, (529), 522 states have call predecessors, (529), 524 states have call successors, (529) [2022-11-25 17:11:26,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 3091 transitions. [2022-11-25 17:11:26,711 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 3091 transitions. Word has length 99 [2022-11-25 17:11:26,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:11:26,712 INFO L495 AbstractCegarLoop]: Abstraction has 2190 states and 3091 transitions. [2022-11-25 17:11:26,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 17:11:26,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 3091 transitions. [2022-11-25 17:11:26,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-25 17:11:26,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:11:26,726 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:11:26,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:11:26,727 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:11:26,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:11:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1250467517, now seen corresponding path program 1 times [2022-11-25 17:11:26,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:11:26,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403424916] [2022-11-25 17:11:26,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:11:26,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:11:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:11:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:11:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:11:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 17:11:27,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 17:11:27,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 17:11:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:11:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:11:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:11:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-25 17:11:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:11:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:11:27,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:11:27,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403424916] [2022-11-25 17:11:27,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403424916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:11:27,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:11:27,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:11:27,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729626944] [2022-11-25 17:11:27,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:11:27,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:11:27,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:11:27,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:11:27,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:11:27,262 INFO L87 Difference]: Start difference. First operand 2190 states and 3091 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 17:11:30,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:32,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:34,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:35,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:37,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:40,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:42,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:44,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:46,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:54,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:11:59,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:04,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:07,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:12,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:12:12,390 INFO L93 Difference]: Finished difference Result 7072 states and 10251 transitions. [2022-11-25 17:12:12,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:12:12,391 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2022-11-25 17:12:12,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:12:12,421 INFO L225 Difference]: With dead ends: 7072 [2022-11-25 17:12:12,421 INFO L226 Difference]: Without dead ends: 4891 [2022-11-25 17:12:12,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:12:12,432 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 3792 mSDsluCounter, 2865 mSDsCounter, 0 mSdLazyCounter, 7093 mSolverCounterSat, 2485 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4089 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 9586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2485 IncrementalHoareTripleChecker+Valid, 7093 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:12:12,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4089 Valid, 3692 Invalid, 9586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2485 Valid, 7093 Invalid, 8 Unknown, 0 Unchecked, 44.2s Time] [2022-11-25 17:12:12,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4891 states. [2022-11-25 17:12:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4891 to 4303. [2022-11-25 17:12:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4303 states, 3051 states have (on average 1.311701081612586) internal successors, (4002), 3124 states have internal predecessors, (4002), 1028 states have call successors, (1028), 224 states have call predecessors, (1028), 223 states have return successors, (1044), 1014 states have call predecessors, (1044), 1027 states have call successors, (1044) [2022-11-25 17:12:12,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4303 states to 4303 states and 6074 transitions. [2022-11-25 17:12:12,741 INFO L78 Accepts]: Start accepts. Automaton has 4303 states and 6074 transitions. Word has length 93 [2022-11-25 17:12:12,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:12:12,741 INFO L495 AbstractCegarLoop]: Abstraction has 4303 states and 6074 transitions. [2022-11-25 17:12:12,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 17:12:12,742 INFO L276 IsEmpty]: Start isEmpty. Operand 4303 states and 6074 transitions. [2022-11-25 17:12:12,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-25 17:12:12,751 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:12:12,751 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:12:12,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:12:12,752 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:12:12,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:12:12,752 INFO L85 PathProgramCache]: Analyzing trace with hash -109162574, now seen corresponding path program 1 times [2022-11-25 17:12:12,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:12:12,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755818778] [2022-11-25 17:12:12,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:12:12,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:12:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:12:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:12:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:12:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-25 17:12:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 17:12:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 17:12:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:12:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:12:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:12:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:12:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:13,157 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:12:13,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:12:13,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755818778] [2022-11-25 17:12:13,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755818778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:12:13,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:12:13,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:12:13,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433498101] [2022-11-25 17:12:13,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:12:13,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:12:13,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:12:13,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:12:13,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:12:13,161 INFO L87 Difference]: Start difference. First operand 4303 states and 6074 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 17:12:16,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:18,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:20,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:22,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:24,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:28,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:30,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:32,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:39,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:44,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:49,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:12:56,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:12:56,354 INFO L93 Difference]: Finished difference Result 13993 states and 20258 transitions. [2022-11-25 17:12:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:12:56,356 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2022-11-25 17:12:56,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:12:56,415 INFO L225 Difference]: With dead ends: 13993 [2022-11-25 17:12:56,415 INFO L226 Difference]: Without dead ends: 9699 [2022-11-25 17:12:56,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:12:56,435 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 3788 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 7092 mSolverCounterSat, 2482 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4084 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 9582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2482 IncrementalHoareTripleChecker+Valid, 7092 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:12:56,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4084 Valid, 3688 Invalid, 9582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2482 Valid, 7092 Invalid, 8 Unknown, 0 Unchecked, 42.3s Time] [2022-11-25 17:12:56,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9699 states. [2022-11-25 17:12:56,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9699 to 8545. [2022-11-25 17:12:56,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8545 states, 6063 states have (on average 1.3109021936335148) internal successors, (7948), 6209 states have internal predecessors, (7948), 2033 states have call successors, (2033), 449 states have call predecessors, (2033), 448 states have return successors, (2077), 2006 states have call predecessors, (2077), 2032 states have call successors, (2077) [2022-11-25 17:12:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8545 states to 8545 states and 12058 transitions. [2022-11-25 17:12:57,112 INFO L78 Accepts]: Start accepts. Automaton has 8545 states and 12058 transitions. Word has length 98 [2022-11-25 17:12:57,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:12:57,113 INFO L495 AbstractCegarLoop]: Abstraction has 8545 states and 12058 transitions. [2022-11-25 17:12:57,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 17:12:57,114 INFO L276 IsEmpty]: Start isEmpty. Operand 8545 states and 12058 transitions. [2022-11-25 17:12:57,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 17:12:57,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:12:57,127 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:12:57,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:12:57,128 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:12:57,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:12:57,129 INFO L85 PathProgramCache]: Analyzing trace with hash 263571810, now seen corresponding path program 1 times [2022-11-25 17:12:57,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:12:57,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077380404] [2022-11-25 17:12:57,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:12:57,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:12:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:12:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:12:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:12:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-25 17:12:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-25 17:12:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:12:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:12:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:12:57,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:12:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:12:57,508 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:12:57,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:12:57,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077380404] [2022-11-25 17:12:57,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077380404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:12:57,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:12:57,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:12:57,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626036246] [2022-11-25 17:12:57,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:12:57,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:12:57,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:12:57,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:12:57,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:12:57,511 INFO L87 Difference]: Start difference. First operand 8545 states and 12058 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-25 17:13:00,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:02,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:04,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:06,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:10,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:12,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:14,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:19,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:25,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:31,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:13:39,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:39,129 INFO L93 Difference]: Finished difference Result 27634 states and 39933 transitions. [2022-11-25 17:13:39,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 17:13:39,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2022-11-25 17:13:39,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:39,232 INFO L225 Difference]: With dead ends: 27634 [2022-11-25 17:13:39,232 INFO L226 Difference]: Without dead ends: 19098 [2022-11-25 17:13:39,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2022-11-25 17:13:39,271 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 3788 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 7090 mSolverCounterSat, 2481 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 9576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2481 IncrementalHoareTripleChecker+Valid, 7090 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:39,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 3688 Invalid, 9576 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2481 Valid, 7090 Invalid, 5 Unknown, 0 Unchecked, 40.2s Time] [2022-11-25 17:13:39,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19098 states. [2022-11-25 17:13:40,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19098 to 16867. [2022-11-25 17:13:40,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16867 states, 11978 states have (on average 1.3098179996660544) internal successors, (15689), 12264 states have internal predecessors, (15689), 3993 states have call successors, (3993), 896 states have call predecessors, (3993), 895 states have return successors, (4101), 3942 states have call predecessors, (4101), 3992 states have call successors, (4101) [2022-11-25 17:13:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16867 states to 16867 states and 23783 transitions. [2022-11-25 17:13:40,511 INFO L78 Accepts]: Start accepts. Automaton has 16867 states and 23783 transitions. Word has length 95 [2022-11-25 17:13:40,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:40,512 INFO L495 AbstractCegarLoop]: Abstraction has 16867 states and 23783 transitions. [2022-11-25 17:13:40,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-25 17:13:40,513 INFO L276 IsEmpty]: Start isEmpty. Operand 16867 states and 23783 transitions. [2022-11-25 17:13:40,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 17:13:40,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:40,523 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:40,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:13:40,523 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:13:40,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:40,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1291796753, now seen corresponding path program 1 times [2022-11-25 17:13:40,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:40,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39878997] [2022-11-25 17:13:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:40,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:13:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:13:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 17:13:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:13:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:13:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:13:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:13:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 17:13:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-25 17:13:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 17:13:41,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:41,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39878997] [2022-11-25 17:13:41,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39878997] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:41,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911647643] [2022-11-25 17:13:41,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:41,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:41,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:41,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:41,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:13:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:42,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:13:42,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:42,159 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 17:13:42,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:42,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911647643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:42,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:42,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2022-11-25 17:13:42,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964975812] [2022-11-25 17:13:42,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:42,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:13:42,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:42,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:13:42,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:13:42,162 INFO L87 Difference]: Start difference. First operand 16867 states and 23783 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:13:43,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:43,152 INFO L93 Difference]: Finished difference Result 33665 states and 47468 transitions. [2022-11-25 17:13:43,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:13:43,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2022-11-25 17:13:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:43,252 INFO L225 Difference]: With dead ends: 33665 [2022-11-25 17:13:43,252 INFO L226 Difference]: Without dead ends: 16807 [2022-11-25 17:13:43,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:13:43,320 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 14 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:43,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 3133 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:13:43,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16807 states. [2022-11-25 17:13:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16807 to 16777. [2022-11-25 17:13:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16777 states, 11948 states have (on average 1.3080850351523268) internal successors, (15629), 12219 states have internal predecessors, (15629), 3933 states have call successors, (3933), 896 states have call predecessors, (3933), 895 states have return successors, (4041), 3882 states have call predecessors, (4041), 3932 states have call successors, (4041) [2022-11-25 17:13:44,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16777 states to 16777 states and 23603 transitions. [2022-11-25 17:13:44,421 INFO L78 Accepts]: Start accepts. Automaton has 16777 states and 23603 transitions. Word has length 104 [2022-11-25 17:13:44,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:44,422 INFO L495 AbstractCegarLoop]: Abstraction has 16777 states and 23603 transitions. [2022-11-25 17:13:44,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:13:44,422 INFO L276 IsEmpty]: Start isEmpty. Operand 16777 states and 23603 transitions. [2022-11-25 17:13:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 17:13:44,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:44,432 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:44,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:44,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:44,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:13:44,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:44,647 INFO L85 PathProgramCache]: Analyzing trace with hash 64902790, now seen corresponding path program 1 times [2022-11-25 17:13:44,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:44,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103322399] [2022-11-25 17:13:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:44,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:13:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:13:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 17:13:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:13:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 17:13:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:13:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:13:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:13:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:13:45,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 17:13:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:45,342 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-25 17:13:45,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:45,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103322399] [2022-11-25 17:13:45,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103322399] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:45,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105510785] [2022-11-25 17:13:45,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:45,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:45,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:45,344 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:45,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:13:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:46,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:13:46,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:46,389 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:13:46,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:46,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105510785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:46,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:46,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-11-25 17:13:46,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783839104] [2022-11-25 17:13:46,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:46,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:13:46,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:46,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:13:46,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-25 17:13:46,392 INFO L87 Difference]: Start difference. First operand 16777 states and 23603 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:13:47,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:47,928 INFO L93 Difference]: Finished difference Result 42059 states and 59161 transitions. [2022-11-25 17:13:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:13:47,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2022-11-25 17:13:47,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:48,041 INFO L225 Difference]: With dead ends: 42059 [2022-11-25 17:13:48,041 INFO L226 Difference]: Without dead ends: 25291 [2022-11-25 17:13:48,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:13:48,097 INFO L413 NwaCegarLoop]: 2083 mSDtfsCounter, 1599 mSDsluCounter, 9886 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 11969 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:48,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 11969 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:13:48,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25291 states. [2022-11-25 17:13:49,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25291 to 25142. [2022-11-25 17:13:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25142 states, 17917 states have (on average 1.3088686722107497) internal successors, (23451), 18331 states have internal predecessors, (23451), 5878 states have call successors, (5878), 1339 states have call predecessors, (5878), 1346 states have return successors, (6067), 5801 states have call predecessors, (6067), 5877 states have call successors, (6067) [2022-11-25 17:13:49,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25142 states to 25142 states and 35396 transitions. [2022-11-25 17:13:49,566 INFO L78 Accepts]: Start accepts. Automaton has 25142 states and 35396 transitions. Word has length 109 [2022-11-25 17:13:49,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:49,567 INFO L495 AbstractCegarLoop]: Abstraction has 25142 states and 35396 transitions. [2022-11-25 17:13:49,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:13:49,567 INFO L276 IsEmpty]: Start isEmpty. Operand 25142 states and 35396 transitions. [2022-11-25 17:13:49,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-25 17:13:49,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:49,580 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:49,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:49,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:49,790 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:13:49,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 576296754, now seen corresponding path program 1 times [2022-11-25 17:13:49,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:49,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744140312] [2022-11-25 17:13:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:49,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:13:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:13:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:13:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 17:13:50,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:13:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:13:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:13:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-25 17:13:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-25 17:13:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:13:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:13:50,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:50,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744140312] [2022-11-25 17:13:50,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744140312] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:50,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522527628] [2022-11-25 17:13:50,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:50,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:50,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:50,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:50,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:13:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:51,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:13:51,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 17:13:51,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:51,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522527628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:51,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:51,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-11-25 17:13:51,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183499581] [2022-11-25 17:13:51,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:51,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:13:51,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:51,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:13:51,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:13:51,220 INFO L87 Difference]: Start difference. First operand 25142 states and 35396 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:13:52,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:52,952 INFO L93 Difference]: Finished difference Result 50077 states and 70472 transitions. [2022-11-25 17:13:52,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:13:52,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2022-11-25 17:13:52,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:53,062 INFO L225 Difference]: With dead ends: 50077 [2022-11-25 17:13:53,062 INFO L226 Difference]: Without dead ends: 24944 [2022-11-25 17:13:53,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:13:53,135 INFO L413 NwaCegarLoop]: 1562 mSDtfsCounter, 9 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:53,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3106 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:13:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24944 states. [2022-11-25 17:13:54,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24944 to 24900. [2022-11-25 17:13:54,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24900 states, 17829 states have (on average 1.3079252902574456) internal successors, (23319), 18221 states have internal predecessors, (23319), 5724 states have call successors, (5724), 1339 states have call predecessors, (5724), 1346 states have return successors, (5913), 5647 states have call predecessors, (5913), 5723 states have call successors, (5913) [2022-11-25 17:13:54,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24900 states to 24900 states and 34956 transitions. [2022-11-25 17:13:54,832 INFO L78 Accepts]: Start accepts. Automaton has 24900 states and 34956 transitions. Word has length 106 [2022-11-25 17:13:54,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:13:54,832 INFO L495 AbstractCegarLoop]: Abstraction has 24900 states and 34956 transitions. [2022-11-25 17:13:54,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:13:54,833 INFO L276 IsEmpty]: Start isEmpty. Operand 24900 states and 34956 transitions. [2022-11-25 17:13:54,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 17:13:54,845 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:13:54,845 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:13:54,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:13:55,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 17:13:55,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:13:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:13:55,056 INFO L85 PathProgramCache]: Analyzing trace with hash -378192319, now seen corresponding path program 1 times [2022-11-25 17:13:55,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:13:55,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134867172] [2022-11-25 17:13:55,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:55,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:13:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:13:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:13:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:13:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:13:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-25 17:13:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-25 17:13:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 17:13:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:13:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 17:13:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 17:13:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:13:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:13:55,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:13:55,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134867172] [2022-11-25 17:13:55,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134867172] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:13:55,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072486143] [2022-11-25 17:13:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:13:55,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:13:55,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:13:55,860 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:13:55,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:13:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:13:56,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:13:56,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:13:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:13:56,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:13:56,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072486143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:13:56,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:13:56,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-25 17:13:56,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524487196] [2022-11-25 17:13:56,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:13:56,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:13:56,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:13:56,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:13:56,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:13:56,895 INFO L87 Difference]: Start difference. First operand 24900 states and 34956 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:13:58,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:13:58,668 INFO L93 Difference]: Finished difference Result 58392 states and 81922 transitions. [2022-11-25 17:13:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:13:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2022-11-25 17:13:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:13:58,802 INFO L225 Difference]: With dead ends: 58392 [2022-11-25 17:13:58,802 INFO L226 Difference]: Without dead ends: 33501 [2022-11-25 17:13:58,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:13:58,886 INFO L413 NwaCegarLoop]: 2225 mSDtfsCounter, 1579 mSDsluCounter, 10422 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 12647 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:13:58,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 12647 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:13:58,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33501 states. [2022-11-25 17:14:00,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33501 to 33331. [2022-11-25 17:14:00,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33331 states, 23869 states have (on average 1.3078888935439272) internal successors, (31218), 24412 states have internal predecessors, (31218), 7645 states have call successors, (7645), 1788 states have call predecessors, (7645), 1816 states have return successors, (7927), 7540 states have call predecessors, (7927), 7644 states have call successors, (7927) [2022-11-25 17:14:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33331 states to 33331 states and 46790 transitions. [2022-11-25 17:14:01,114 INFO L78 Accepts]: Start accepts. Automaton has 33331 states and 46790 transitions. Word has length 110 [2022-11-25 17:14:01,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:01,114 INFO L495 AbstractCegarLoop]: Abstraction has 33331 states and 46790 transitions. [2022-11-25 17:14:01,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:14:01,115 INFO L276 IsEmpty]: Start isEmpty. Operand 33331 states and 46790 transitions. [2022-11-25 17:14:01,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 17:14:01,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:01,134 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:01,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:14:01,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:01,344 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:14:01,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:01,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1381092737, now seen corresponding path program 1 times [2022-11-25 17:14:01,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:01,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026485970] [2022-11-25 17:14:01,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:01,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:14:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:14:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-25 17:14:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-25 17:14:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:14:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-25 17:14:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:14:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-25 17:14:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-25 17:14:01,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:14:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:14:01,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:01,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026485970] [2022-11-25 17:14:01,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026485970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:14:01,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273810582] [2022-11-25 17:14:01,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:01,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:01,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:14:01,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:14:01,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:14:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:02,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:14:02,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:14:02,820 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:14:02,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:14:02,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273810582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:14:02,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:14:02,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-25 17:14:02,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125708253] [2022-11-25 17:14:02,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:14:02,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:14:02,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:14:02,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:14:02,823 INFO L87 Difference]: Start difference. First operand 33331 states and 46790 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:14:04,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:14:04,731 INFO L93 Difference]: Finished difference Result 75132 states and 105423 transitions. [2022-11-25 17:14:04,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:14:04,732 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2022-11-25 17:14:04,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:14:05,092 INFO L225 Difference]: With dead ends: 75132 [2022-11-25 17:14:05,093 INFO L226 Difference]: Without dead ends: 41810 [2022-11-25 17:14:05,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:14:05,194 INFO L413 NwaCegarLoop]: 2225 mSDtfsCounter, 1579 mSDsluCounter, 10422 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 12647 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:14:05,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 12647 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:14:05,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41810 states. [2022-11-25 17:14:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41810 to 33353. [2022-11-25 17:14:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33353 states, 23885 states have (on average 1.3076826460121416) internal successors, (31234), 24430 states have internal predecessors, (31234), 7645 states have call successors, (7645), 1788 states have call predecessors, (7645), 1822 states have return successors, (7936), 7544 states have call predecessors, (7936), 7644 states have call successors, (7936) [2022-11-25 17:14:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33353 states to 33353 states and 46815 transitions. [2022-11-25 17:14:07,028 INFO L78 Accepts]: Start accepts. Automaton has 33353 states and 46815 transitions. Word has length 111 [2022-11-25 17:14:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:07,029 INFO L495 AbstractCegarLoop]: Abstraction has 33353 states and 46815 transitions. [2022-11-25 17:14:07,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:14:07,030 INFO L276 IsEmpty]: Start isEmpty. Operand 33353 states and 46815 transitions. [2022-11-25 17:14:07,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-25 17:14:07,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:07,054 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:07,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:14:07,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:07,264 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:14:07,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:07,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1736878746, now seen corresponding path program 1 times [2022-11-25 17:14:07,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:07,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916326287] [2022-11-25 17:14:07,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:07,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:14:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:14:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:14:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:14:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:14:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-25 17:14:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:14:07,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:14:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 17:14:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:14:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:07,990 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:14:07,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:07,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916326287] [2022-11-25 17:14:07,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916326287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:14:07,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094708150] [2022-11-25 17:14:07,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:07,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:07,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:14:07,993 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:14:08,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:14:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:08,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:14:08,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:14:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-25 17:14:09,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:14:09,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094708150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:14:09,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:14:09,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-11-25 17:14:09,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490132855] [2022-11-25 17:14:09,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:14:09,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:14:09,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:09,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:14:09,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:14:09,063 INFO L87 Difference]: Start difference. First operand 33353 states and 46815 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:14:10,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:14:10,961 INFO L93 Difference]: Finished difference Result 75162 states and 105456 transitions. [2022-11-25 17:14:10,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:14:10,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2022-11-25 17:14:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:14:11,223 INFO L225 Difference]: With dead ends: 75162 [2022-11-25 17:14:11,223 INFO L226 Difference]: Without dead ends: 41818 [2022-11-25 17:14:11,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=472, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:14:11,297 INFO L413 NwaCegarLoop]: 2225 mSDtfsCounter, 1579 mSDsluCounter, 10422 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 12647 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:14:11,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 12647 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 17:14:11,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41818 states. [2022-11-25 17:14:13,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41818 to 33366. [2022-11-25 17:14:13,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33366 states, 23895 states have (on average 1.307553881565181) internal successors, (31244), 24439 states have internal predecessors, (31244), 7645 states have call successors, (7645), 1788 states have call predecessors, (7645), 1825 states have return successors, (7939), 7548 states have call predecessors, (7939), 7644 states have call successors, (7939) [2022-11-25 17:14:13,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33366 states to 33366 states and 46828 transitions. [2022-11-25 17:14:13,207 INFO L78 Accepts]: Start accepts. Automaton has 33366 states and 46828 transitions. Word has length 112 [2022-11-25 17:14:13,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:13,208 INFO L495 AbstractCegarLoop]: Abstraction has 33366 states and 46828 transitions. [2022-11-25 17:14:13,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:14:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 33366 states and 46828 transitions. [2022-11-25 17:14:13,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-25 17:14:13,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:13,221 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:13,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:14:13,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 17:14:13,436 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:14:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:13,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1493639812, now seen corresponding path program 1 times [2022-11-25 17:14:13,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:13,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226709535] [2022-11-25 17:14:13,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:13,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:14:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:14:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 17:14:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 17:14:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 17:14:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:14:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:14:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:14:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 17:14:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:14:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:14:13,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:13,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226709535] [2022-11-25 17:14:13,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226709535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:14:13,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:14:13,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:14:13,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418087792] [2022-11-25 17:14:13,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:14:13,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:14:13,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:13,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:14:13,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:14:13,690 INFO L87 Difference]: Start difference. First operand 33366 states and 46828 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:14:20,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:24,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:27,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:29,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:31,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:33,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:35,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:40,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:41,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:14:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:14:46,244 INFO L93 Difference]: Finished difference Result 98168 states and 139515 transitions. [2022-11-25 17:14:46,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:14:46,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 123 [2022-11-25 17:14:46,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:14:46,455 INFO L225 Difference]: With dead ends: 98168 [2022-11-25 17:14:46,455 INFO L226 Difference]: Without dead ends: 64811 [2022-11-25 17:14:46,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:14:46,684 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 3187 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 4299 mSolverCounterSat, 1954 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3422 SdHoareTripleChecker+Valid, 2304 SdHoareTripleChecker+Invalid, 6258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1954 IncrementalHoareTripleChecker+Valid, 4299 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:14:46,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3422 Valid, 2304 Invalid, 6258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1954 Valid, 4299 Invalid, 5 Unknown, 0 Unchecked, 29.8s Time] [2022-11-25 17:14:46,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64811 states. [2022-11-25 17:14:49,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64811 to 57219. [2022-11-25 17:14:49,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57219 states, 41292 states have (on average 1.3070812748232103) internal successors, (53972), 42247 states have internal predecessors, (53972), 12564 states have call successors, (12564), 3288 states have call predecessors, (12564), 3362 states have return successors, (12922), 12363 states have call predecessors, (12922), 12563 states have call successors, (12922) [2022-11-25 17:14:49,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57219 states to 57219 states and 79458 transitions. [2022-11-25 17:14:49,270 INFO L78 Accepts]: Start accepts. Automaton has 57219 states and 79458 transitions. Word has length 123 [2022-11-25 17:14:49,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:14:49,271 INFO L495 AbstractCegarLoop]: Abstraction has 57219 states and 79458 transitions. [2022-11-25 17:14:49,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-25 17:14:49,271 INFO L276 IsEmpty]: Start isEmpty. Operand 57219 states and 79458 transitions. [2022-11-25 17:14:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 17:14:49,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:14:49,274 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:14:49,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:14:49,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:14:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:14:49,275 INFO L85 PathProgramCache]: Analyzing trace with hash -2028255067, now seen corresponding path program 1 times [2022-11-25 17:14:49,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:14:49,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060659430] [2022-11-25 17:14:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:49,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:14:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:49,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:14:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:49,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:14:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:14:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:49,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 17:14:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:49,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-25 17:14:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-25 17:14:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:14:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 17:14:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:14:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:14:50,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:14:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 17:14:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,155 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 17:14:50,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:14:50,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060659430] [2022-11-25 17:14:50,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060659430] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:14:50,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127010851] [2022-11-25 17:14:50,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:14:50,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:14:50,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:14:50,159 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:14:50,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:14:50,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:14:50,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 1793 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:14:50,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:14:51,360 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:14:51,360 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:14:52,011 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 17:14:52,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127010851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:14:52,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:14:52,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 23 [2022-11-25 17:14:52,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429001645] [2022-11-25 17:14:52,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:14:52,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 17:14:52,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:14:52,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 17:14:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:14:52,014 INFO L87 Difference]: Start difference. First operand 57219 states and 79458 transitions. Second operand has 23 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 15 states have internal predecessors, (153), 5 states have call successors, (35), 8 states have call predecessors, (35), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2022-11-25 17:15:19,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:21,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:23,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:25,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:26,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:28,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:30,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:32,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:33,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:34,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:36,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:38,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:40,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:42,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:45,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:47,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:50,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:53,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:56,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:15:59,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:16:01,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:16:20,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:16:38,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:16:56,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:16:57,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:16:58,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:00,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:02,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:04,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:06,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:07,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:08,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:10,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:12,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:14,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:15,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:17,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:19,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:38,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:17:40,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:18:04,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,697 INFO L93 Difference]: Finished difference Result 184440 states and 264096 transitions. [2022-11-25 17:18:04,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-25 17:18:04,698 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 15 states have internal predecessors, (153), 5 states have call successors, (35), 8 states have call predecessors, (35), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 124 [2022-11-25 17:18:04,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:05,187 INFO L225 Difference]: With dead ends: 184440 [2022-11-25 17:18:05,187 INFO L226 Difference]: Without dead ends: 126838 [2022-11-25 17:18:05,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 270 SyntacticMatches, 8 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7610 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=2948, Invalid=17358, Unknown=0, NotChecked=0, Total=20306 [2022-11-25 17:18:05,343 INFO L413 NwaCegarLoop]: 2464 mSDtfsCounter, 12270 mSDsluCounter, 24365 mSDsCounter, 0 mSdLazyCounter, 56933 mSolverCounterSat, 7109 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 170.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12867 SdHoareTripleChecker+Valid, 26829 SdHoareTripleChecker+Invalid, 64063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 7109 IncrementalHoareTripleChecker+Valid, 56933 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 177.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:05,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12867 Valid, 26829 Invalid, 64063 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [7109 Valid, 56933 Invalid, 21 Unknown, 0 Unchecked, 177.8s Time] [2022-11-25 17:18:05,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126838 states. [2022-11-25 17:18:10,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126838 to 98288. [2022-11-25 17:18:10,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98288 states, 70933 states have (on average 1.3072053910027772) internal successors, (92724), 72569 states have internal predecessors, (92724), 21578 states have call successors, (21578), 5687 states have call predecessors, (21578), 5776 states have return successors, (22147), 21199 states have call predecessors, (22147), 21577 states have call successors, (22147) [2022-11-25 17:18:10,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98288 states to 98288 states and 136449 transitions. [2022-11-25 17:18:10,879 INFO L78 Accepts]: Start accepts. Automaton has 98288 states and 136449 transitions. Word has length 124 [2022-11-25 17:18:10,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:10,879 INFO L495 AbstractCegarLoop]: Abstraction has 98288 states and 136449 transitions. [2022-11-25 17:18:10,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 15 states have internal predecessors, (153), 5 states have call successors, (35), 8 states have call predecessors, (35), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2022-11-25 17:18:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 98288 states and 136449 transitions. [2022-11-25 17:18:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-25 17:18:10,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:10,884 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:10,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:18:11,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:11,087 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:18:11,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:11,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1841100899, now seen corresponding path program 1 times [2022-11-25 17:18:11,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:11,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600719764] [2022-11-25 17:18:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:11,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:18:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:18:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:11,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:18:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:11,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-25 17:18:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:11,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-25 17:18:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:11,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 17:18:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:12,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-25 17:18:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 17:18:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:12,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:18:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:12,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 17:18:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:12,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:18:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:12,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 17:18:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:12,192 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-25 17:18:12,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:12,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600719764] [2022-11-25 17:18:12,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600719764] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:18:12,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663506017] [2022-11-25 17:18:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:12,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:18:12,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:18:12,222 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:18:12,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0bfee0f2-8b37-4b4b-a3ee-4db45cc6f09f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:18:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:13,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-25 17:18:13,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:18:13,417 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 17:18:13,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:18:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 17:18:13,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663506017] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:18:13,927 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:18:13,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 23 [2022-11-25 17:18:13,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813072612] [2022-11-25 17:18:13,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:18:13,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-25 17:18:13,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:13,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-25 17:18:13,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2022-11-25 17:18:13,929 INFO L87 Difference]: Start difference. First operand 98288 states and 136449 transitions. Second operand has 23 states, 23 states have (on average 6.739130434782608) internal successors, (155), 15 states have internal predecessors, (155), 5 states have call successors, (35), 8 states have call predecessors, (35), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2022-11-25 17:18:44,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:18:46,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:07,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:41,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:43,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:45,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:46,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:48,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:50,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:52,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:54,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:56,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:19:58,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:00,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:02,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:04,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:06,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:07,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:21,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:29,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:32,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:34,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:20:55,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:55,833 INFO L93 Difference]: Finished difference Result 315398 states and 446938 transitions. [2022-11-25 17:20:55,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-11-25 17:20:55,834 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.739130434782608) internal successors, (155), 15 states have internal predecessors, (155), 5 states have call successors, (35), 8 states have call predecessors, (35), 7 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 125 [2022-11-25 17:20:55,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:56,758 INFO L225 Difference]: With dead ends: 315398 [2022-11-25 17:20:56,759 INFO L226 Difference]: Without dead ends: 216475 [2022-11-25 17:20:57,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 272 SyntacticMatches, 8 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7768 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=2948, Invalid=17358, Unknown=0, NotChecked=0, Total=20306 [2022-11-25 17:20:57,052 INFO L413 NwaCegarLoop]: 2406 mSDtfsCounter, 13844 mSDsluCounter, 26215 mSDsCounter, 0 mSdLazyCounter, 60831 mSolverCounterSat, 9210 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14433 SdHoareTripleChecker+Valid, 28621 SdHoareTripleChecker+Invalid, 70057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 9210 IncrementalHoareTripleChecker+Valid, 60831 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 141.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:57,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14433 Valid, 28621 Invalid, 70057 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [9210 Valid, 60831 Invalid, 16 Unknown, 0 Unchecked, 141.9s Time] [2022-11-25 17:20:57,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216475 states.