./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:03:57,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:03:57,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:03:57,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:03:57,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:03:57,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:03:57,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:03:57,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:03:57,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:03:57,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:03:57,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:03:57,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:03:57,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:03:57,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:03:57,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:03:57,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:03:57,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:03:57,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:03:57,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:03:57,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:03:57,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:03:57,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:03:57,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:03:57,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:03:57,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:03:57,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:03:57,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:03:57,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:03:57,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:03:57,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:03:57,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:03:57,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:03:57,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:03:57,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:03:57,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:03:57,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:03:57,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:03:57,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:03:57,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:03:57,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:03:57,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:03:57,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 19:03:57,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:03:57,923 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:03:57,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:03:57,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:03:57,924 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:03:57,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:03:57,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:03:57,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:03:57,926 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:03:57,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:03:57,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:03:57,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:03:57,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:03:57,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:03:57,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:03:57,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:03:57,927 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:03:57,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:03:57,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:03:57,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:03:57,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:03:57,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:03:57,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:03:57,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:03:57,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:03:57,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:03:57,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:03:57,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:03:57,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:03:57,930 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:03:57,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:03:57,930 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:03:57,930 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_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2022-12-13 19:03:58,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:03:58,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:03:58,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:03:58,143 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:03:58,144 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:03:58,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-12-13 19:04:00,829 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:04:01,133 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:04:01,134 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-12-13 19:04:01,153 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/data/2640d6c23/d9861bd9076d4062acec916b569aef17/FLAG365518ab3 [2022-12-13 19:04:01,164 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/data/2640d6c23/d9861bd9076d4062acec916b569aef17 [2022-12-13 19:04:01,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:04:01,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:04:01,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:04:01,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:04:01,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:04:01,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:04:01" (1/1) ... [2022-12-13 19:04:01,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c46e304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:01, skipping insertion in model container [2022-12-13 19:04:01,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:04:01" (1/1) ... [2022-12-13 19:04:01,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:04:01,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:04:01,848 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-13 19:04:01,858 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-13 19:04:01,868 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-13 19:04:01,877 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-13 19:04:01,887 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 19:04:02,077 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-13 19:04:02,081 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-13 19:04:02,081 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-13 19:04:02,087 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-13 19:04:02,150 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-13 19:04:02,206 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-13 19:04:02,216 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-13 19:04:02,254 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-12-13 19:04:02,275 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-13 19:04:02,311 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,312 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,321 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,324 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,330 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,337 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,339 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,343 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,344 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,348 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,349 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,352 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,352 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,353 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,353 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,353 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,354 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,354 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,361 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,361 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,362 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,363 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,364 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,366 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,367 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,372 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 19:04:02,373 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,373 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,373 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,377 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,378 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,378 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,378 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,379 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,379 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,379 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,379 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,380 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,380 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,380 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,380 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,380 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,381 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,381 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,381 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,382 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,382 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,382 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,382 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,383 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,383 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,392 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-13 19:04:02,394 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,394 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,399 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,399 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,408 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,408 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,409 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,412 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,413 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,413 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,414 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,414 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,415 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,415 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,415 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,419 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,420 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,420 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,421 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,421 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,422 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,422 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,423 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,423 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,423 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,424 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,424 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,425 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,425 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,426 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,426 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,427 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,448 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,448 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-13 19:04:02,449 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 19:04:02,453 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,458 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,458 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-13 19:04:02,459 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 19:04:02,463 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,469 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,469 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,475 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,475 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-13 19:04:02,476 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 19:04:02,476 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,476 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,492 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,496 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,498 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,499 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,510 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,511 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,512 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-12-13 19:04:02,512 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-12-13 19:04:02,513 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,513 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,514 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,514 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,514 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,515 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-13 19:04:02,515 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-13 19:04:02,519 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,519 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-13 19:04:02,520 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,526 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,534 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,534 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,535 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,535 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,543 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,543 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,544 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,544 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,545 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,545 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,545 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,549 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 19:04:02,549 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-13 19:04:02,549 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 19:04:02,556 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 19:04:02,556 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-13 19:04:02,557 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 19:04:02,560 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 19:04:02,560 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-13 19:04:02,560 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 19:04:02,563 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 19:04:02,564 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-13 19:04:02,564 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 19:04:02,567 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-13 19:04:02,568 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-13 19:04:02,568 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-13 19:04:02,571 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-13 19:04:02,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 19:04:02,573 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-13 19:04:02,573 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 19:04:02,573 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-13 19:04:02,574 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 19:04:02,574 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 19:04:02,575 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-13 19:04:02,575 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-13 19:04:02,576 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 19:04:02,577 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-13 19:04:02,577 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 19:04:02,577 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-13 19:04:02,578 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,578 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-13 19:04:02,578 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-13 19:04:02,578 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-13 19:04:02,607 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 19:04:02,608 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-13 19:04:02,609 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-13 19:04:02,609 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-13 19:04:02,610 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-13 19:04:02,611 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-13 19:04:02,611 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-13 19:04:02,611 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_4 [2022-12-13 19:04:02,612 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_4 [2022-12-13 19:04:02,613 WARN L623 FunctionHandler]: Unknown extern function ldv_shutdown_3 [2022-12-13 19:04:02,614 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-13 19:04:02,615 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-13 19:04:02,616 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-13 19:04:02,616 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-13 19:04:02,616 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-13 19:04:02,617 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-13 19:04:02,619 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-13 19:04:02,620 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-13 19:04:02,620 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-13 19:04:02,620 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-13 19:04:02,621 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-13 19:04:02,621 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-13 19:04:02,621 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-13 19:04:02,622 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-13 19:04:02,625 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_e826486b-1067-4aaf-9a60-f3f4189839e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-12-13 19:04:02,644 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-13 19:04:02,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:04:02,689 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:04:02,769 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-13 19:04:02,770 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-13 19:04:02,770 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-13 19:04:02,770 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-13 19:04:02,770 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-13 19:04:02,775 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-13 19:04:02,775 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-13 19:04:02,776 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-13 19:04:02,777 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-13 19:04:02,778 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-13 19:04:02,779 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-13 19:04:02,780 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-12-13 19:04:02,781 WARN L623 FunctionHandler]: Unknown extern function netif_tx_wake_queue [2022-12-13 19:04:02,782 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-13 19:04:02,784 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,784 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,784 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,785 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,787 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,790 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,791 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,792 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,793 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,793 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,794 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,794 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,794 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,795 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,795 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,795 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,795 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,795 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,797 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,797 WARN L623 FunctionHandler]: Unknown extern function ioread8 [2022-12-13 19:04:02,797 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,798 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,799 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,800 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,801 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,802 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-13 19:04:02,803 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,803 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,803 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,804 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,804 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,805 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,805 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,805 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,805 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,805 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,805 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,806 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,806 WARN L623 FunctionHandler]: Unknown extern function iowrite8 [2022-12-13 19:04:02,806 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,806 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,806 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,806 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,806 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,807 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,807 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,807 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,807 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,808 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,808 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,808 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,810 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-13 19:04:02,811 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,811 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,813 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,813 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,815 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,815 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,816 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,816 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,817 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,817 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,817 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,818 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,818 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,818 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,818 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,819 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,820 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,820 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,820 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,820 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,821 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,821 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,821 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,821 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,822 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,822 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,822 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,822 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,823 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,823 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,823 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,823 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,828 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,829 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-13 19:04:02,829 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 19:04:02,830 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,831 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,831 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-13 19:04:02,831 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 19:04:02,833 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,834 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,835 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,837 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-13 19:04:02,837 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-13 19:04:02,837 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 19:04:02,838 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,838 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,840 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,840 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,842 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,842 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,844 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,845 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,845 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-12-13 19:04:02,846 WARN L623 FunctionHandler]: Unknown extern function dma_alloc_attrs [2022-12-13 19:04:02,846 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,846 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,847 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,847 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-12-13 19:04:02,847 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,847 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-13 19:04:02,848 WARN L623 FunctionHandler]: Unknown extern function dma_free_attrs [2022-12-13 19:04:02,848 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,849 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-12-13 19:04:02,849 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,851 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-12-13 19:04:02,853 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,853 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-13 19:04:02,853 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,853 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,865 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-13 19:04:02,866 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,866 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,866 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,866 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,867 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,867 WARN L623 FunctionHandler]: Unknown extern function ioread16 [2022-12-13 19:04:02,868 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 19:04:02,868 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-12-13 19:04:02,868 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 19:04:02,869 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 19:04:02,869 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-12-13 19:04:02,869 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 19:04:02,870 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 19:04:02,870 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-12-13 19:04:02,870 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 19:04:02,870 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-13 19:04:02,870 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-12-13 19:04:02,871 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-13 19:04:02,871 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-13 19:04:02,871 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-13 19:04:02,871 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-13 19:04:02,872 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-12-13 19:04:02,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 19:04:02,873 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-12-13 19:04:02,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 19:04:02,873 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-13 19:04:02,874 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 19:04:02,874 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-13 19:04:02,875 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-12-13 19:04:02,876 WARN L623 FunctionHandler]: Unknown extern function pci_iomap [2022-12-13 19:04:02,876 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 19:04:02,877 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-13 19:04:02,877 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-13 19:04:02,877 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-13 19:04:02,878 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-13 19:04:02,878 WARN L623 FunctionHandler]: Unknown extern function pci_iounmap [2022-12-13 19:04:02,878 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-12-13 19:04:02,878 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-12-13 19:04:02,884 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 19:04:02,885 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-13 19:04:02,901 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-13 19:04:02,901 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-13 19:04:02,902 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-13 19:04:02,903 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-13 19:04:02,903 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-13 19:04:02,903 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_init_4 [2022-12-13 19:04:02,904 WARN L623 FunctionHandler]: Unknown extern function ldv_ndo_uninit_4 [2022-12-13 19:04:02,905 WARN L623 FunctionHandler]: Unknown extern function ldv_shutdown_3 [2022-12-13 19:04:02,906 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-13 19:04:02,907 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-13 19:04:02,907 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-13 19:04:02,908 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-13 19:04:02,908 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-13 19:04:02,908 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-13 19:04:02,910 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-13 19:04:02,911 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-13 19:04:02,911 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-13 19:04:02,911 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-13 19:04:02,911 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-13 19:04:02,912 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-13 19:04:02,912 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-12-13 19:04:02,912 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-12-13 19:04:02,912 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_e826486b-1067-4aaf-9a60-f3f4189839e1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2022-12-13 19:04:02,914 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-13 19:04:02,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:04:02,991 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:04:02,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02 WrapperNode [2022-12-13 19:04:02,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:04:02,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:04:02,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:04:02,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:04:02,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,107 INFO L138 Inliner]: procedures = 262, calls = 1355, calls flagged for inlining = 121, calls inlined = 116, statements flattened = 3438 [2022-12-13 19:04:03,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:04:03,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:04:03,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:04:03,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:04:03,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:04:03,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:04:03,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:04:03,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:04:03,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (1/1) ... [2022-12-13 19:04:03,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:04:03,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:04:03,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:04:03,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-12-13 19:04:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-12-13 19:04:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-12-13 19:04:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-12-13 19:04:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-13 19:04:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-13 19:04:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2022-12-13 19:04:03,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2022-12-13 19:04:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-12-13 19:04:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-12-13 19:04:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-12-13 19:04:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-12-13 19:04:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-12-13 19:04:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-12-13 19:04:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-12-13 19:04:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-12-13 19:04:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-12-13 19:04:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-12-13 19:04:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-13 19:04:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-13 19:04:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-13 19:04:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-12-13 19:04:03,328 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-12-13 19:04:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-13 19:04:03,329 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-13 19:04:03,329 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-13 19:04:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-13 19:04:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-13 19:04:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-13 19:04:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-12-13 19:04:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-12-13 19:04:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-12-13 19:04:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-12-13 19:04:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:04:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-12-13 19:04:03,330 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-12-13 19:04:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-12-13 19:04:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-12-13 19:04:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-12-13 19:04:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-12-13 19:04:03,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-13 19:04:03,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-13 19:04:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-12-13 19:04:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-12-13 19:04:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-13 19:04:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-13 19:04:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-12-13 19:04:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-12-13 19:04:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 19:04:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-12-13 19:04:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-12-13 19:04:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-13 19:04:03,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-13 19:04:03,344 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-12-13 19:04:03,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-12-13 19:04:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:04:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-13 19:04:03,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-13 19:04:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 19:04:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-12-13 19:04:03,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-12-13 19:04:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-12-13 19:04:03,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-12-13 19:04:03,345 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-12-13 19:04:03,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-12-13 19:04:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-12-13 19:04:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-12-13 19:04:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-12-13 19:04:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-12-13 19:04:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-12-13 19:04:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-12-13 19:04:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-12-13 19:04:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-12-13 19:04:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-12-13 19:04:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-12-13 19:04:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-12-13 19:04:03,346 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-12-13 19:04:03,346 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-12-13 19:04:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-12-13 19:04:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-12-13 19:04:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-12-13 19:04:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2022-12-13 19:04:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2022-12-13 19:04:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-13 19:04:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-13 19:04:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:04:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-12-13 19:04:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-12-13 19:04:03,347 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-12-13 19:04:03,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-12-13 19:04:03,348 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-12-13 19:04:03,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-12-13 19:04:03,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:04:03,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:04:03,810 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:04:03,812 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:04:04,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-13 19:04:06,780 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:04:06,791 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:04:06,792 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 19:04:06,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:04:06 BoogieIcfgContainer [2022-12-13 19:04:06,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:04:06,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:04:06,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:04:06,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:04:06,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:04:01" (1/3) ... [2022-12-13 19:04:06,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe6b7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:04:06, skipping insertion in model container [2022-12-13 19:04:06,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:04:02" (2/3) ... [2022-12-13 19:04:06,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe6b7b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:04:06, skipping insertion in model container [2022-12-13 19:04:06,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:04:06" (3/3) ... [2022-12-13 19:04:06,800 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2022-12-13 19:04:06,814 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:04:06,814 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 19:04:06,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:04:06,872 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;@6436afda, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:04:06,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 19:04:06,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 1429 states, 983 states have (on average 1.316378433367243) internal successors, (1294), 1016 states have internal predecessors, (1294), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) [2022-12-13 19:04:06,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-13 19:04:06,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:04:06,895 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-12-13 19:04:06,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:04:06,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:06,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1449874276, now seen corresponding path program 1 times [2022-12-13 19:04:06,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:06,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706119826] [2022-12-13 19:04:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:06,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:04:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:04:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:04:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:04:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:04:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:04:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 19:04:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:04:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 19:04:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:04:07,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:07,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706119826] [2022-12-13 19:04:07,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706119826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:07,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:07,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:04:07,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873440772] [2022-12-13 19:04:07,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:07,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:04:07,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:07,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:04:07,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:04:07,540 INFO L87 Difference]: Start difference. First operand has 1429 states, 983 states have (on average 1.316378433367243) internal successors, (1294), 1016 states have internal predecessors, (1294), 364 states have call successors, (364), 83 states have call predecessors, (364), 82 states have return successors, (356), 356 states have call predecessors, (356), 356 states have call successors, (356) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 19:04:13,259 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 [] [2022-12-13 19:04:15,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:04:15,736 INFO L93 Difference]: Finished difference Result 3098 states and 4476 transitions. [2022-12-13 19:04:15,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:04:15,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 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 122 [2022-12-13 19:04:15,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:04:15,766 INFO L225 Difference]: With dead ends: 3098 [2022-12-13 19:04:15,766 INFO L226 Difference]: Without dead ends: 1653 [2022-12-13 19:04:15,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:04:15,781 INFO L413 NwaCegarLoop]: 1428 mSDtfsCounter, 1146 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 1084 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 3751 SdHoareTripleChecker+Invalid, 3099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1084 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:04:15,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 3751 Invalid, 3099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1084 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-12-13 19:04:15,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2022-12-13 19:04:15,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1402. [2022-12-13 19:04:15,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 966 states have (on average 1.305383022774327) internal successors, (1261), 988 states have internal predecessors, (1261), 354 states have call successors, (354), 82 states have call predecessors, (354), 81 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2022-12-13 19:04:15,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1968 transitions. [2022-12-13 19:04:15,929 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1968 transitions. Word has length 122 [2022-12-13 19:04:15,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:04:15,930 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 1968 transitions. [2022-12-13 19:04:15,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 19:04:15,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1968 transitions. [2022-12-13 19:04:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-12-13 19:04:15,938 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:04:15,938 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-12-13 19:04:15,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:04:15,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:04:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:15,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1507536712, now seen corresponding path program 1 times [2022-12-13 19:04:15,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:15,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980076046] [2022-12-13 19:04:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:15,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:16,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:04:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:04:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:04:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:04:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:04:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:04:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 19:04:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 19:04:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 19:04:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:04:16,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:16,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980076046] [2022-12-13 19:04:16,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980076046] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:16,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:16,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:04:16,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141949533] [2022-12-13 19:04:16,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:16,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:04:16,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:16,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:04:16,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:04:16,401 INFO L87 Difference]: Start difference. First operand 1402 states and 1968 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 19:04:22,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:04:27,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:04:29,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:04:29,721 INFO L93 Difference]: Finished difference Result 4672 states and 6714 transitions. [2022-12-13 19:04:29,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 19:04:29,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 123 [2022-12-13 19:04:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:04:29,737 INFO L225 Difference]: With dead ends: 4672 [2022-12-13 19:04:29,737 INFO L226 Difference]: Without dead ends: 3291 [2022-12-13 19:04:29,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-12-13 19:04:29,742 INFO L413 NwaCegarLoop]: 1718 mSDtfsCounter, 5169 mSDsluCounter, 4644 mSDsCounter, 0 mSdLazyCounter, 4845 mSolverCounterSat, 3407 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5385 SdHoareTripleChecker+Valid, 6362 SdHoareTripleChecker+Invalid, 8252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3407 IncrementalHoareTripleChecker+Valid, 4845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:04:29,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5385 Valid, 6362 Invalid, 8252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3407 Valid, 4845 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2022-12-13 19:04:29,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2022-12-13 19:04:29,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 2811. [2022-12-13 19:04:29,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 1938 states have (on average 1.304953560371517) internal successors, (2529), 1984 states have internal predecessors, (2529), 706 states have call successors, (706), 163 states have call predecessors, (706), 166 states have return successors, (727), 707 states have call predecessors, (727), 705 states have call successors, (727) [2022-12-13 19:04:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3962 transitions. [2022-12-13 19:04:29,838 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3962 transitions. Word has length 123 [2022-12-13 19:04:29,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:04:29,838 INFO L495 AbstractCegarLoop]: Abstraction has 2811 states and 3962 transitions. [2022-12-13 19:04:29,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 19:04:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3962 transitions. [2022-12-13 19:04:29,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-13 19:04:29,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:04:29,841 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-12-13 19:04:29,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:04:29,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:04:29,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash -857923483, now seen corresponding path program 1 times [2022-12-13 19:04:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:29,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970741938] [2022-12-13 19:04:29,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:29,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:04:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:04:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:04:30,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:04:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:04:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:04:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 19:04:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 19:04:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 19:04:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:04:30,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:30,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970741938] [2022-12-13 19:04:30,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970741938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:30,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:30,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:04:30,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487232050] [2022-12-13 19:04:30,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:30,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:04:30,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:30,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:04:30,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:04:30,266 INFO L87 Difference]: Start difference. First operand 2811 states and 3962 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 19:04:37,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:04:40,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:04:42,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:04:50,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:04:50,349 INFO L93 Difference]: Finished difference Result 9344 states and 13489 transitions. [2022-12-13 19:04:50,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 19:04:50,350 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2022-12-13 19:04:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:04:50,374 INFO L225 Difference]: With dead ends: 9344 [2022-12-13 19:04:50,374 INFO L226 Difference]: Without dead ends: 6554 [2022-12-13 19:04:50,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-12-13 19:04:50,383 INFO L413 NwaCegarLoop]: 1836 mSDtfsCounter, 4014 mSDsluCounter, 5877 mSDsCounter, 0 mSdLazyCounter, 5701 mSolverCounterSat, 2291 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4230 SdHoareTripleChecker+Valid, 7713 SdHoareTripleChecker+Invalid, 7993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2291 IncrementalHoareTripleChecker+Valid, 5701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-12-13 19:04:50,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4230 Valid, 7713 Invalid, 7993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2291 Valid, 5701 Invalid, 1 Unknown, 0 Unchecked, 19.7s Time] [2022-12-13 19:04:50,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6554 states. [2022-12-13 19:04:50,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6554 to 5641. [2022-12-13 19:04:50,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5641 states, 3886 states have (on average 1.304426145136387) internal successors, (5069), 3989 states have internal predecessors, (5069), 1414 states have call successors, (1414), 325 states have call predecessors, (1414), 340 states have return successors, (1523), 1414 states have call predecessors, (1523), 1413 states have call successors, (1523) [2022-12-13 19:04:50,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5641 states to 5641 states and 8006 transitions. [2022-12-13 19:04:50,731 INFO L78 Accepts]: Start accepts. Automaton has 5641 states and 8006 transitions. Word has length 121 [2022-12-13 19:04:50,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:04:50,731 INFO L495 AbstractCegarLoop]: Abstraction has 5641 states and 8006 transitions. [2022-12-13 19:04:50,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 4 states have internal predecessors, (47), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 19:04:50,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5641 states and 8006 transitions. [2022-12-13 19:04:50,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-13 19:04:50,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:04:50,737 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-12-13 19:04:50,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:04:50,737 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:04:50,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:50,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1923008860, now seen corresponding path program 1 times [2022-12-13 19:04:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:50,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439692153] [2022-12-13 19:04:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:04:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:04:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:04:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:04:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:04:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:04:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:04:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:04:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 19:04:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:04:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-12-13 19:04:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:04:51,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:51,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439692153] [2022-12-13 19:04:51,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439692153] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:51,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:51,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:04:51,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081176273] [2022-12-13 19:04:51,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:51,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:04:51,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:51,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:04:51,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:04:51,157 INFO L87 Difference]: Start difference. First operand 5641 states and 8006 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 19:04:58,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:05:01,090 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 [] [2022-12-13 19:05:05,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:05,205 INFO L93 Difference]: Finished difference Result 18686 states and 27131 transitions. [2022-12-13 19:05:05,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 19:05:05,206 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 122 [2022-12-13 19:05:05,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:05,251 INFO L225 Difference]: With dead ends: 18686 [2022-12-13 19:05:05,251 INFO L226 Difference]: Without dead ends: 13066 [2022-12-13 19:05:05,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-12-13 19:05:05,268 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 4102 mSDsluCounter, 5419 mSDsCounter, 0 mSdLazyCounter, 5604 mSolverCounterSat, 2385 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4318 SdHoareTripleChecker+Valid, 7135 SdHoareTripleChecker+Invalid, 7990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2385 IncrementalHoareTripleChecker+Valid, 5604 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-13 19:05:05,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4318 Valid, 7135 Invalid, 7990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2385 Valid, 5604 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2022-12-13 19:05:05,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13066 states. [2022-12-13 19:05:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13066 to 11263. [2022-12-13 19:05:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11263 states, 7762 states have (on average 1.3036588508116465) internal successors, (10119), 7966 states have internal predecessors, (10119), 2819 states have call successors, (2819), 650 states have call predecessors, (2819), 681 states have return successors, (3126), 2822 states have call predecessors, (3126), 2818 states have call successors, (3126) [2022-12-13 19:05:05,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11263 states to 11263 states and 16064 transitions. [2022-12-13 19:05:05,743 INFO L78 Accepts]: Start accepts. Automaton has 11263 states and 16064 transitions. Word has length 122 [2022-12-13 19:05:05,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:05,744 INFO L495 AbstractCegarLoop]: Abstraction has 11263 states and 16064 transitions. [2022-12-13 19:05:05,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 19:05:05,744 INFO L276 IsEmpty]: Start isEmpty. Operand 11263 states and 16064 transitions. [2022-12-13 19:05:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-13 19:05:05,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:05,750 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-12-13 19:05:05,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:05:05,750 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:05,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1726246361, now seen corresponding path program 1 times [2022-12-13 19:05:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:05,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941637507] [2022-12-13 19:05:05,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:05:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:05:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:05:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:05:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 19:05:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 19:05:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 19:05:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:05:06,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:06,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941637507] [2022-12-13 19:05:06,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941637507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:06,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:06,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:05:06,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151265032] [2022-12-13 19:05:06,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:06,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:05:06,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:06,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:05:06,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:05:06,114 INFO L87 Difference]: Start difference. First operand 11263 states and 16064 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 19:05:12,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:05:14,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:05:16,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:05:18,370 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 [] [2022-12-13 19:05:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:20,328 INFO L93 Difference]: Finished difference Result 36824 states and 53654 transitions. [2022-12-13 19:05:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 19:05:20,328 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 124 [2022-12-13 19:05:20,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:20,414 INFO L225 Difference]: With dead ends: 36824 [2022-12-13 19:05:20,414 INFO L226 Difference]: Without dead ends: 25582 [2022-12-13 19:05:20,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-12-13 19:05:20,448 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 5290 mSDsluCounter, 4512 mSDsCounter, 0 mSdLazyCounter, 4695 mSolverCounterSat, 3481 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5507 SdHoareTripleChecker+Valid, 6175 SdHoareTripleChecker+Invalid, 8177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3481 IncrementalHoareTripleChecker+Valid, 4695 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-12-13 19:05:20,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5507 Valid, 6175 Invalid, 8177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3481 Valid, 4695 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2022-12-13 19:05:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25582 states. [2022-12-13 19:05:21,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25582 to 22178. [2022-12-13 19:05:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22178 states, 15278 states have (on average 1.301348344024087) internal successors, (19882), 15670 states have internal predecessors, (19882), 5545 states have call successors, (5545), 1291 states have call predecessors, (5545), 1354 states have return successors, (6350), 5556 states have call predecessors, (6350), 5544 states have call successors, (6350) [2022-12-13 19:05:21,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22178 states to 22178 states and 31777 transitions. [2022-12-13 19:05:21,300 INFO L78 Accepts]: Start accepts. Automaton has 22178 states and 31777 transitions. Word has length 124 [2022-12-13 19:05:21,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:21,300 INFO L495 AbstractCegarLoop]: Abstraction has 22178 states and 31777 transitions. [2022-12-13 19:05:21,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 19:05:21,301 INFO L276 IsEmpty]: Start isEmpty. Operand 22178 states and 31777 transitions. [2022-12-13 19:05:21,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-12-13 19:05:21,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:21,304 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:21,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:05:21,304 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:21,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1814896603, now seen corresponding path program 1 times [2022-12-13 19:05:21,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:21,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690223635] [2022-12-13 19:05:21,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:21,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:05:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:05:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:05:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:05:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 19:05:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-12-13 19:05:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-12-13 19:05:21,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-12-13 19:05:21,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-12-13 19:05:21,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:21,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690223635] [2022-12-13 19:05:21,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690223635] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:05:21,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256614254] [2022-12-13 19:05:21,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:21,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:21,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:05:21,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:05:21,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:05:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:22,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 2148 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:05:22,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:05:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:05:22,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:05:22,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256614254] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:22,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:05:22,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-12-13 19:05:22,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560450450] [2022-12-13 19:05:22,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:22,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:05:22,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:22,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:05:22,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-12-13 19:05:22,505 INFO L87 Difference]: Start difference. First operand 22178 states and 31777 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:05:23,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:23,598 INFO L93 Difference]: Finished difference Result 55430 states and 79557 transitions. [2022-12-13 19:05:23,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 19:05:23,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 134 [2022-12-13 19:05:23,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:23,708 INFO L225 Difference]: With dead ends: 55430 [2022-12-13 19:05:23,708 INFO L226 Difference]: Without dead ends: 33273 [2022-12-13 19:05:23,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-12-13 19:05:23,766 INFO L413 NwaCegarLoop]: 3067 mSDtfsCounter, 1994 mSDsluCounter, 14201 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 17268 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:05:23,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 17268 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:05:23,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33273 states. [2022-12-13 19:05:25,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33273 to 33124. [2022-12-13 19:05:25,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33124 states, 22825 states have (on average 1.3015553121577217) internal successors, (29708), 23417 states have internal predecessors, (29708), 8267 states have call successors, (8267), 1928 states have call predecessors, (8267), 2031 states have return successors, (9658), 8282 states have call predecessors, (9658), 8266 states have call successors, (9658) [2022-12-13 19:05:25,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33124 states to 33124 states and 47633 transitions. [2022-12-13 19:05:25,473 INFO L78 Accepts]: Start accepts. Automaton has 33124 states and 47633 transitions. Word has length 134 [2022-12-13 19:05:25,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:25,474 INFO L495 AbstractCegarLoop]: Abstraction has 33124 states and 47633 transitions. [2022-12-13 19:05:25,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:05:25,474 INFO L276 IsEmpty]: Start isEmpty. Operand 33124 states and 47633 transitions. [2022-12-13 19:05:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-12-13 19:05:25,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:25,482 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-12-13 19:05:25,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:05:25,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:25,683 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:25,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1440923531, now seen corresponding path program 1 times [2022-12-13 19:05:25,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:25,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943412986] [2022-12-13 19:05:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:25,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:05:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:05:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:05:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:05:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 19:05:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 19:05:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-12-13 19:05:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-12-13 19:05:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:05:26,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:26,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943412986] [2022-12-13 19:05:26,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943412986] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:05:26,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385803660] [2022-12-13 19:05:26,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:26,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:26,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:05:26,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:05:26,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:05:26,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:26,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 2150 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:05:26,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:05:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:05:26,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:05:26,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385803660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:26,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:05:26,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-12-13 19:05:26,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498282685] [2022-12-13 19:05:26,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:26,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:05:26,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:26,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:05:26,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-12-13 19:05:26,765 INFO L87 Difference]: Start difference. First operand 33124 states and 47633 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:05:28,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:28,023 INFO L93 Difference]: Finished difference Result 77375 states and 111315 transitions. [2022-12-13 19:05:28,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 19:05:28,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 135 [2022-12-13 19:05:28,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:28,168 INFO L225 Difference]: With dead ends: 77375 [2022-12-13 19:05:28,169 INFO L226 Difference]: Without dead ends: 44272 [2022-12-13 19:05:28,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-12-13 19:05:28,250 INFO L413 NwaCegarLoop]: 3195 mSDtfsCounter, 1994 mSDsluCounter, 14701 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 17896 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 [2022-12-13 19:05:28,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 17896 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:05:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44272 states. [2022-12-13 19:05:30,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44272 to 44102. [2022-12-13 19:05:30,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44102 states, 30392 states have (on average 1.3014609107659911) internal successors, (39554), 31200 states have internal predecessors, (39554), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2720 states have return successors, (12978), 11004 states have call predecessors, (12978), 10988 states have call successors, (12978) [2022-12-13 19:05:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44102 states to 44102 states and 63521 transitions. [2022-12-13 19:05:30,248 INFO L78 Accepts]: Start accepts. Automaton has 44102 states and 63521 transitions. Word has length 135 [2022-12-13 19:05:30,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:30,248 INFO L495 AbstractCegarLoop]: Abstraction has 44102 states and 63521 transitions. [2022-12-13 19:05:30,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:05:30,248 INFO L276 IsEmpty]: Start isEmpty. Operand 44102 states and 63521 transitions. [2022-12-13 19:05:30,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-12-13 19:05:30,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:30,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-12-13 19:05:30,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:05:30,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:30,454 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:30,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:30,454 INFO L85 PathProgramCache]: Analyzing trace with hash -895711060, now seen corresponding path program 1 times [2022-12-13 19:05:30,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:30,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369008992] [2022-12-13 19:05:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:30,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:30,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:05:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:05:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:05:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:05:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 19:05:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 19:05:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-12-13 19:05:30,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-12-13 19:05:30,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:30,895 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:05:30,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:30,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369008992] [2022-12-13 19:05:30,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369008992] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:05:30,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981320652] [2022-12-13 19:05:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:30,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:30,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:05:30,897 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:05:30,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:05:31,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:31,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 2152 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:05:31,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:05:31,453 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:05:31,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:05:31,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981320652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:31,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:05:31,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-12-13 19:05:31,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947699147] [2022-12-13 19:05:31,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:31,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:05:31,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:31,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:05:31,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-12-13 19:05:31,455 INFO L87 Difference]: Start difference. First operand 44102 states and 63521 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:05:33,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:33,200 INFO L93 Difference]: Finished difference Result 99320 states and 143073 transitions. [2022-12-13 19:05:33,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 19:05:33,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 136 [2022-12-13 19:05:33,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:33,392 INFO L225 Difference]: With dead ends: 99320 [2022-12-13 19:05:33,392 INFO L226 Difference]: Without dead ends: 55239 [2022-12-13 19:05:33,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-12-13 19:05:33,509 INFO L413 NwaCegarLoop]: 3195 mSDtfsCounter, 1994 mSDsluCounter, 14701 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 17896 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 [2022-12-13 19:05:33,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 17896 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:05:33,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55239 states. [2022-12-13 19:05:35,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55239 to 44124. [2022-12-13 19:05:35,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44124 states, 30408 states have (on average 1.3013022888713497) internal successors, (39570), 31218 states have internal predecessors, (39570), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2726 states have return successors, (12987), 11008 states have call predecessors, (12987), 10988 states have call successors, (12987) [2022-12-13 19:05:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44124 states to 44124 states and 63546 transitions. [2022-12-13 19:05:35,262 INFO L78 Accepts]: Start accepts. Automaton has 44124 states and 63546 transitions. Word has length 136 [2022-12-13 19:05:35,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:35,262 INFO L495 AbstractCegarLoop]: Abstraction has 44124 states and 63546 transitions. [2022-12-13 19:05:35,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:05:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 44124 states and 63546 transitions. [2022-12-13 19:05:35,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-12-13 19:05:35,269 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:35,269 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-12-13 19:05:35,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 19:05:35,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 19:05:35,470 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:35,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:35,470 INFO L85 PathProgramCache]: Analyzing trace with hash -504782990, now seen corresponding path program 1 times [2022-12-13 19:05:35,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:35,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803152858] [2022-12-13 19:05:35,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:35,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:05:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:05:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:05:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:05:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 19:05:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 19:05:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:36,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 19:05:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:36,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-12-13 19:05:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:36,016 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:05:36,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:36,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803152858] [2022-12-13 19:05:36,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803152858] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:05:36,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882838628] [2022-12-13 19:05:36,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:36,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:36,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:05:36,018 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:05:36,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 19:05:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:36,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:05:36,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:05:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-12-13 19:05:36,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:05:36,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882838628] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:36,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:05:36,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-12-13 19:05:36,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466235046] [2022-12-13 19:05:36,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:36,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:05:36,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:36,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:05:36,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-12-13 19:05:36,555 INFO L87 Difference]: Start difference. First operand 44124 states and 63546 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:05:38,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:38,851 INFO L93 Difference]: Finished difference Result 99350 states and 143106 transitions. [2022-12-13 19:05:38,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 19:05:38,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 137 [2022-12-13 19:05:38,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:39,057 INFO L225 Difference]: With dead ends: 99350 [2022-12-13 19:05:39,057 INFO L226 Difference]: Without dead ends: 55247 [2022-12-13 19:05:39,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-12-13 19:05:39,186 INFO L413 NwaCegarLoop]: 3195 mSDtfsCounter, 1994 mSDsluCounter, 14701 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 17896 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 [2022-12-13 19:05:39,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 17896 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 19:05:39,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55247 states. [2022-12-13 19:05:40,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55247 to 44137. [2022-12-13 19:05:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44137 states, 30418 states have (on average 1.3012032349266882) internal successors, (39580), 31227 states have internal predecessors, (39580), 10989 states have call successors, (10989), 2565 states have call predecessors, (10989), 2729 states have return successors, (12990), 11012 states have call predecessors, (12990), 10988 states have call successors, (12990) [2022-12-13 19:05:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44137 states to 44137 states and 63559 transitions. [2022-12-13 19:05:40,729 INFO L78 Accepts]: Start accepts. Automaton has 44137 states and 63559 transitions. Word has length 137 [2022-12-13 19:05:40,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:40,729 INFO L495 AbstractCegarLoop]: Abstraction has 44137 states and 63559 transitions. [2022-12-13 19:05:40,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 19:05:40,729 INFO L276 IsEmpty]: Start isEmpty. Operand 44137 states and 63559 transitions. [2022-12-13 19:05:40,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-12-13 19:05:40,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:40,735 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-12-13 19:05:40,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 19:05:40,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:40,937 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:40,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:40,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1627975641, now seen corresponding path program 1 times [2022-12-13 19:05:40,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:40,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179678370] [2022-12-13 19:05:40,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:40,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:05:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:05:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:41,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:05:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:05:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 19:05:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 19:05:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 19:05:41,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:05:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:05:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 19:05:41,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 19:05:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 19:05:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:41,220 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-12-13 19:05:41,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:41,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179678370] [2022-12-13 19:05:41,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179678370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:05:41,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:05:41,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 19:05:41,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309674214] [2022-12-13 19:05:41,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:05:41,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:05:41,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:41,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:05:41,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:05:41,221 INFO L87 Difference]: Start difference. First operand 44137 states and 63559 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 19:05:48,041 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 [] [2022-12-13 19:05:49,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:05:52,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:05:52,930 INFO L93 Difference]: Finished difference Result 61707 states and 88679 transitions. [2022-12-13 19:05:52,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:05:52,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2022-12-13 19:05:52,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:05:53,131 INFO L225 Difference]: With dead ends: 61707 [2022-12-13 19:05:53,132 INFO L226 Difference]: Without dead ends: 61704 [2022-12-13 19:05:53,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:05:53,165 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 2567 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 2823 mSolverCounterSat, 1451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2715 SdHoareTripleChecker+Valid, 4418 SdHoareTripleChecker+Invalid, 4274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1451 IncrementalHoareTripleChecker+Valid, 2823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:05:53,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2715 Valid, 4418 Invalid, 4274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1451 Valid, 2823 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-12-13 19:05:53,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61704 states. [2022-12-13 19:05:54,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61704 to 54679. [2022-12-13 19:05:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54679 states, 37124 states have (on average 1.284479043206551) internal successors, (47685), 37962 states have internal predecessors, (47685), 13768 states have call successors, (13768), 3622 states have call predecessors, (13768), 3786 states have return successors, (15769), 13791 states have call predecessors, (15769), 13767 states have call successors, (15769) [2022-12-13 19:05:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54679 states to 54679 states and 77222 transitions. [2022-12-13 19:05:55,145 INFO L78 Accepts]: Start accepts. Automaton has 54679 states and 77222 transitions. Word has length 158 [2022-12-13 19:05:55,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:05:55,145 INFO L495 AbstractCegarLoop]: Abstraction has 54679 states and 77222 transitions. [2022-12-13 19:05:55,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 19:05:55,146 INFO L276 IsEmpty]: Start isEmpty. Operand 54679 states and 77222 transitions. [2022-12-13 19:05:55,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-12-13 19:05:55,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:05:55,157 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:05:55,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 19:05:55,158 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:05:55,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:05:55,158 INFO L85 PathProgramCache]: Analyzing trace with hash 913868496, now seen corresponding path program 1 times [2022-12-13 19:05:55,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:05:55,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138814787] [2022-12-13 19:05:55,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:55,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:05:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:05:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:55,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:05:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:05:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:05:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:05:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:05:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:05:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 19:05:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-12-13 19:05:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-12-13 19:05:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-12-13 19:05:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-12-13 19:05:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-12-13 19:05:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:05:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-12-13 19:05:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 19:05:55,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-12-13 19:05:55,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-13 19:05:55,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:05:55,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138814787] [2022-12-13 19:05:55,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138814787] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:05:55,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705685385] [2022-12-13 19:05:55,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:05:55,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:05:55,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:05:55,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:05:55,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 19:05:56,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:05:56,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 2393 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 19:05:56,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:05:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-12-13 19:05:56,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:05:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-12-13 19:05:56,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705685385] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:05:56,530 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:05:56,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-12-13 19:05:56,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594546829] [2022-12-13 19:05:56,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:05:56,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 19:05:56,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:05:56,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 19:05:56,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-12-13 19:05:56,532 INFO L87 Difference]: Start difference. First operand 54679 states and 77222 transitions. Second operand has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-12-13 19:06:44,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:06:48,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:06:55,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:06:57,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:06:59,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:07:02,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:07:16,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:07:19,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:07:20,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:07:24,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:07:25,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:07:34,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:07:34,372 INFO L93 Difference]: Finished difference Result 162331 states and 232327 transitions. [2022-12-13 19:07:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-12-13 19:07:34,373 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 183 [2022-12-13 19:07:34,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:07:34,762 INFO L225 Difference]: With dead ends: 162331 [2022-12-13 19:07:34,762 INFO L226 Difference]: Without dead ends: 107477 [2022-12-13 19:07:34,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 413 SyntacticMatches, 8 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7673 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=3129, Invalid=17177, Unknown=0, NotChecked=0, Total=20306 [2022-12-13 19:07:34,913 INFO L413 NwaCegarLoop]: 2289 mSDtfsCounter, 22874 mSDsluCounter, 20523 mSDsCounter, 0 mSdLazyCounter, 65402 mSolverCounterSat, 18991 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23358 SdHoareTripleChecker+Valid, 22812 SdHoareTripleChecker+Invalid, 84395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 18991 IncrementalHoareTripleChecker+Valid, 65402 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.9s IncrementalHoareTripleChecker+Time [2022-12-13 19:07:34,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23358 Valid, 22812 Invalid, 84395 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [18991 Valid, 65402 Invalid, 2 Unknown, 0 Unchecked, 85.9s Time] [2022-12-13 19:07:34,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107477 states. [2022-12-13 19:07:40,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107477 to 94212. [2022-12-13 19:07:40,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94212 states, 63913 states have (on average 1.2833226417160828) internal successors, (82021), 65341 states have internal predecessors, (82021), 23793 states have call successors, (23793), 6255 states have call predecessors, (23793), 6505 states have return successors, (27018), 23799 states have call predecessors, (27018), 23792 states have call successors, (27018) [2022-12-13 19:07:40,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94212 states to 94212 states and 132832 transitions. [2022-12-13 19:07:40,770 INFO L78 Accepts]: Start accepts. Automaton has 94212 states and 132832 transitions. Word has length 183 [2022-12-13 19:07:40,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:07:40,771 INFO L495 AbstractCegarLoop]: Abstraction has 94212 states and 132832 transitions. [2022-12-13 19:07:40,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.5) internal successors, (156), 15 states have internal predecessors, (156), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-12-13 19:07:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 94212 states and 132832 transitions. [2022-12-13 19:07:40,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-12-13 19:07:40,787 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:07:40,787 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:07:40,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 19:07:40,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:07:40,989 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:07:40,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:07:40,990 INFO L85 PathProgramCache]: Analyzing trace with hash -270980623, now seen corresponding path program 1 times [2022-12-13 19:07:40,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:07:40,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916129453] [2022-12-13 19:07:40,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:07:40,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:07:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:07:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:07:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:07:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:07:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:07:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:07:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:07:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:07:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:07:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:07:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-12-13 19:07:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 19:07:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-12-13 19:07:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 19:07:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 19:07:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 19:07:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:07:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-12-13 19:07:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-12-13 19:07:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-12-13 19:07:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,462 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-13 19:07:41,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:07:41,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916129453] [2022-12-13 19:07:41,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916129453] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:07:41,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945318041] [2022-12-13 19:07:41,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:07:41,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:07:41,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:07:41,464 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:07:41,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 19:07:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:07:41,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 2395 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 19:07:41,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:07:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-12-13 19:07:41,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:07:42,259 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-12-13 19:07:42,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945318041] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:07:42,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:07:42,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-12-13 19:07:42,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208502321] [2022-12-13 19:07:42,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:07:42,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 19:07:42,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:07:42,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 19:07:42,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-12-13 19:07:42,263 INFO L87 Difference]: Start difference. First operand 94212 states and 132832 transitions. Second operand has 24 states, 24 states have (on average 6.583333333333333) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-12-13 19:08:27,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:28,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:30,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:33,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:35,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:39,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:43,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:48,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:53,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:08:55,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:09:01,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:09:08,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:09:09,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:09:13,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:09:13,041 INFO L93 Difference]: Finished difference Result 273498 states and 389995 transitions. [2022-12-13 19:09:13,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-12-13 19:09:13,042 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.583333333333333) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 184 [2022-12-13 19:09:13,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:09:13,660 INFO L225 Difference]: With dead ends: 273498 [2022-12-13 19:09:13,661 INFO L226 Difference]: Without dead ends: 178985 [2022-12-13 19:09:13,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 415 SyntacticMatches, 8 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7839 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=3129, Invalid=17177, Unknown=0, NotChecked=0, Total=20306 [2022-12-13 19:09:13,909 INFO L413 NwaCegarLoop]: 2023 mSDtfsCounter, 21605 mSDsluCounter, 15297 mSDsCounter, 0 mSdLazyCounter, 47344 mSolverCounterSat, 15080 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22089 SdHoareTripleChecker+Valid, 17320 SdHoareTripleChecker+Invalid, 62425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 15080 IncrementalHoareTripleChecker+Valid, 47344 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.7s IncrementalHoareTripleChecker+Time [2022-12-13 19:09:13,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22089 Valid, 17320 Invalid, 62425 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [15080 Valid, 47344 Invalid, 1 Unknown, 0 Unchecked, 73.7s Time] [2022-12-13 19:09:14,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178985 states. [2022-12-13 19:09:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178985 to 154552. [2022-12-13 19:09:23,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154552 states, 104757 states have (on average 1.2820432047500405) internal successors, (134303), 107056 states have internal predecessors, (134303), 39104 states have call successors, (39104), 10322 states have call predecessors, (39104), 10690 states have return successors, (43920), 39088 states have call predecessors, (43920), 39103 states have call successors, (43920) [2022-12-13 19:09:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154552 states to 154552 states and 217327 transitions. [2022-12-13 19:09:24,008 INFO L78 Accepts]: Start accepts. Automaton has 154552 states and 217327 transitions. Word has length 184 [2022-12-13 19:09:24,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:09:24,008 INFO L495 AbstractCegarLoop]: Abstraction has 154552 states and 217327 transitions. [2022-12-13 19:09:24,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.583333333333333) internal successors, (158), 15 states have internal predecessors, (158), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-12-13 19:09:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 154552 states and 217327 transitions. [2022-12-13 19:09:24,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-12-13 19:09:24,028 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:09:24,028 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:24,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 19:09:24,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 19:09:24,229 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:09:24,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:24,230 INFO L85 PathProgramCache]: Analyzing trace with hash -791716681, now seen corresponding path program 1 times [2022-12-13 19:09:24,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:24,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701165855] [2022-12-13 19:09:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:24,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:09:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:09:24,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:09:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:09:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:09:24,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:09:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:09:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:09:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:09:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:09:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:09:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:09:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:09:24,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:09:24,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-12-13 19:09:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-12-13 19:09:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-12-13 19:09:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 19:09:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-12-13 19:09:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-12-13 19:09:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:09:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-12-13 19:09:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-12-13 19:09:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-12-13 19:09:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-12-13 19:09:24,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:24,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701165855] [2022-12-13 19:09:24,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701165855] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:09:24,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674549647] [2022-12-13 19:09:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:24,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:09:24,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:09:24,670 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:09:24,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 19:09:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:25,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 2397 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 19:09:25,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:25,273 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-12-13 19:09:25,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:09:25,545 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-12-13 19:09:25,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674549647] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:09:25,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:09:25,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 10] total 24 [2022-12-13 19:09:25,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094484238] [2022-12-13 19:09:25,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:09:25,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-12-13 19:09:25,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:25,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-12-13 19:09:25,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2022-12-13 19:09:25,548 INFO L87 Difference]: Start difference. First operand 154552 states and 217327 transitions. Second operand has 24 states, 24 states have (on average 6.666666666666667) internal successors, (160), 15 states have internal predecessors, (160), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-12-13 19:10:21,052 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 [] [2022-12-13 19:10:45,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:10:45,882 INFO L93 Difference]: Finished difference Result 392655 states and 557210 transitions. [2022-12-13 19:10:45,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-12-13 19:10:45,882 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.666666666666667) internal successors, (160), 15 states have internal predecessors, (160), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 185 [2022-12-13 19:10:45,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:10:46,802 INFO L225 Difference]: With dead ends: 392655 [2022-12-13 19:10:46,802 INFO L226 Difference]: Without dead ends: 237669 [2022-12-13 19:10:47,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 417 SyntacticMatches, 8 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7838 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3129, Invalid=17177, Unknown=0, NotChecked=0, Total=20306 [2022-12-13 19:10:47,299 INFO L413 NwaCegarLoop]: 1924 mSDtfsCounter, 21528 mSDsluCounter, 16126 mSDsCounter, 0 mSdLazyCounter, 60599 mSolverCounterSat, 16292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22010 SdHoareTripleChecker+Valid, 18050 SdHoareTripleChecker+Invalid, 76891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 16292 IncrementalHoareTripleChecker+Valid, 60599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 58.8s IncrementalHoareTripleChecker+Time [2022-12-13 19:10:47,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22010 Valid, 18050 Invalid, 76891 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [16292 Valid, 60599 Invalid, 0 Unknown, 0 Unchecked, 58.8s Time] [2022-12-13 19:10:47,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237669 states. [2022-12-13 19:11:01,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237669 to 202846. [2022-12-13 19:11:01,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202846 states, 137329 states have (on average 1.2802175796809123) internal successors, (175811), 140224 states have internal predecessors, (175811), 51471 states have call successors, (51471), 13636 states have call predecessors, (51471), 14045 states have return successors, (56739), 51451 states have call predecessors, (56739), 51470 states have call successors, (56739) [2022-12-13 19:11:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202846 states to 202846 states and 284021 transitions. [2022-12-13 19:11:02,324 INFO L78 Accepts]: Start accepts. Automaton has 202846 states and 284021 transitions. Word has length 185 [2022-12-13 19:11:02,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:11:02,324 INFO L495 AbstractCegarLoop]: Abstraction has 202846 states and 284021 transitions. [2022-12-13 19:11:02,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.666666666666667) internal successors, (160), 15 states have internal predecessors, (160), 5 states have call successors, (43), 9 states have call predecessors, (43), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2022-12-13 19:11:02,325 INFO L276 IsEmpty]: Start isEmpty. Operand 202846 states and 284021 transitions. [2022-12-13 19:11:02,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-12-13 19:11:02,346 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:11:02,346 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:02,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 19:11:02,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e826486b-1067-4aaf-9a60-f3f4189839e1/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 19:11:02,548 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:11:02,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:02,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1428091988, now seen corresponding path program 1 times [2022-12-13 19:11:02,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:02,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546451245] [2022-12-13 19:11:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:11:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:11:02,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:11:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:11:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:11:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:11:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:11:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:11:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:11:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:11:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:11:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:11:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:11:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:11:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-12-13 19:11:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:11:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:11:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-12-13 19:11:02,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-12-13 19:11:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-12-13 19:11:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-12-13 19:11:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:11:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-12-13 19:11:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-12-13 19:11:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-12-13 19:11:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-12-13 19:11:02,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:02,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546451245] [2022-12-13 19:11:02,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546451245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:02,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:02,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 19:11:02,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25978124] [2022-12-13 19:11:02,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:02,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:11:02,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:02,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:11:02,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:11:02,826 INFO L87 Difference]: Start difference. First operand 202846 states and 284021 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 19:11:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:11:53,977 INFO L93 Difference]: Finished difference Result 596754 states and 840118 transitions. [2022-12-13 19:11:53,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 19:11:53,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 192 [2022-12-13 19:11:53,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:11:55,535 INFO L225 Difference]: With dead ends: 596754 [2022-12-13 19:11:55,536 INFO L226 Difference]: Without dead ends: 393929 [2022-12-13 19:11:56,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-12-13 19:11:56,108 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 5701 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 5553 mSolverCounterSat, 3989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5974 SdHoareTripleChecker+Valid, 2861 SdHoareTripleChecker+Invalid, 9542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3989 IncrementalHoareTripleChecker+Valid, 5553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:11:56,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5974 Valid, 2861 Invalid, 9542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3989 Valid, 5553 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-12-13 19:11:56,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393929 states. [2022-12-13 19:12:32,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393929 to 348196. [2022-12-13 19:12:32,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348196 states, 236272 states have (on average 1.280219408139771) internal successors, (302480), 241727 states have internal predecessors, (302480), 87031 states have call successors, (87031), 24078 states have call predecessors, (87031), 24892 states have return successors, (92781), 86814 states have call predecessors, (92781), 87030 states have call successors, (92781) [2022-12-13 19:12:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348196 states to 348196 states and 482292 transitions. [2022-12-13 19:12:34,232 INFO L78 Accepts]: Start accepts. Automaton has 348196 states and 482292 transitions. Word has length 192 [2022-12-13 19:12:34,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:12:34,232 INFO L495 AbstractCegarLoop]: Abstraction has 348196 states and 482292 transitions. [2022-12-13 19:12:34,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-13 19:12:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 348196 states and 482292 transitions. [2022-12-13 19:12:34,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-12-13 19:12:34,264 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:12:34,264 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:12:34,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 19:12:34,265 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 19:12:34,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:12:34,265 INFO L85 PathProgramCache]: Analyzing trace with hash -3271369, now seen corresponding path program 1 times [2022-12-13 19:12:34,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:12:34,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073149237] [2022-12-13 19:12:34,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:12:34,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:12:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:12:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:12:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 19:12:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:12:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 19:12:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:12:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 19:12:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:12:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 19:12:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 19:12:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-12-13 19:12:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 19:12:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-12-13 19:12:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-12-13 19:12:34,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-12-13 19:12:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-12-13 19:12:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-12-13 19:12:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 19:12:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-12-13 19:12:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 19:12:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 19:12:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 19:12:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-12-13 19:12:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 19:12:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-12-13 19:12:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:12:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-12-13 19:12:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 19:12:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-12-13 19:12:34,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-12-13 19:12:34,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-12-13 19:12:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-12-13 19:12:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 19:12:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-12-13 19:12:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-12-13 19:12:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-12-13 19:12:34,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:12:34,739 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-12-13 19:12:34,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:12:34,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073149237] [2022-12-13 19:12:34,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073149237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:12:34,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:12:34,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 19:12:34,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522004953] [2022-12-13 19:12:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:12:34,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 19:12:34,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:12:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 19:12:34,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-13 19:12:34,741 INFO L87 Difference]: Start difference. First operand 348196 states and 482292 transitions. Second operand has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 3 states have internal predecessors, (183), 2 states have call successors, (42), 8 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-13 19:12:47,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:12:49,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:14:22,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:14:24,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 19:14:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:14:34,596 INFO L93 Difference]: Finished difference Result 1181366 states and 1693020 transitions. [2022-12-13 19:14:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-13 19:14:34,597 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.333333333333332) internal successors, (183), 3 states have internal predecessors, (183), 2 states have call successors, (42), 8 states have call predecessors, (42), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 347 [2022-12-13 19:14:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:14:38,598 INFO L225 Difference]: With dead ends: 1181366 [2022-12-13 19:14:38,598 INFO L226 Difference]: Without dead ends: 833191 [2022-12-13 19:14:39,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-12-13 19:14:39,749 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 5387 mSDsluCounter, 4702 mSDsCounter, 0 mSdLazyCounter, 9525 mSolverCounterSat, 4299 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5695 SdHoareTripleChecker+Valid, 5811 SdHoareTripleChecker+Invalid, 13825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4299 IncrementalHoareTripleChecker+Valid, 9525 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-12-13 19:14:39,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5695 Valid, 5811 Invalid, 13825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4299 Valid, 9525 Invalid, 1 Unknown, 0 Unchecked, 21.1s Time] [2022-12-13 19:14:40,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833191 states.