./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro --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 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d --- 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-8393723 [2022-11-18 19:45:17,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:45:17,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:45:17,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:45:17,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:45:17,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:45:17,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:45:17,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:45:17,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:45:17,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:45:17,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:45:17,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:45:17,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:45:17,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:45:17,290 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:45:17,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:45:17,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:45:17,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:45:17,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:45:17,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:45:17,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:45:17,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:45:17,301 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:45:17,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:45:17,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:45:17,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:45:17,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:45:17,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:45:17,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:45:17,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:45:17,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:45:17,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:45:17,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:45:17,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:45:17,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:45:17,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:45:17,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:45:17,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:45:17,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:45:17,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:45:17,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:45:17,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:45:17,363 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:45:17,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:45:17,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:45:17,365 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:45:17,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:45:17,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:45:17,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:45:17,367 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:45:17,367 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:45:17,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:45:17,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:45:17,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:45:17,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:45:17,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:45:17,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:45:17,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:45:17,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:45:17,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:45:17,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:45:17,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:45:17,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:45:17,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:45:17,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:45:17,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:45:17,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:45:17,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:45:17,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:45:17,373 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:45:17,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:45:17,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:45:17,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba89c3eceb6ce3b33f7045e58fd9531469c7ed109a8240b2f15aad930b1478d [2022-11-18 19:45:17,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:45:17,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:45:17,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:45:17,664 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:45:17,665 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:45:17,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-18 19:45:17,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/data/b6eb0c5a5/0c64c5f12d6d48358dc3a0039601db35/FLAG13f791c7a [2022-11-18 19:45:18,768 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:45:18,768 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-18 19:45:18,816 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/data/b6eb0c5a5/0c64c5f12d6d48358dc3a0039601db35/FLAG13f791c7a [2022-11-18 19:45:19,146 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/data/b6eb0c5a5/0c64c5f12d6d48358dc3a0039601db35 [2022-11-18 19:45:19,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:45:19,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:45:19,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:45:19,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:45:19,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:45:19,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:45:19" (1/1) ... [2022-11-18 19:45:19,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d29a0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:19, skipping insertion in model container [2022-11-18 19:45:19,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:45:19" (1/1) ... [2022-11-18 19:45:19,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:45:19,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:45:20,650 WARN L234 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_8e0d7bf9-2510-468c-94f4-50415841580a/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i[170192,170205] [2022-11-18 19:45:22,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:45:22,094 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:45:22,252 WARN L234 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_8e0d7bf9-2510-468c-94f4-50415841580a/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i[170192,170205] [2022-11-18 19:45:22,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:45:22,827 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:45:22,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22 WrapperNode [2022-11-18 19:45:22,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:45:22,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:45:22,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:45:22,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:45:22,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:22,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,263 INFO L138 Inliner]: procedures = 347, calls = 3101, calls flagged for inlining = 175, calls inlined = 164, statements flattened = 6577 [2022-11-18 19:45:23,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:45:23,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:45:23,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:45:23,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:45:23,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,654 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:45:23,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:45:23,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:45:23,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:45:23,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (1/1) ... [2022-11-18 19:45:23,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:45:23,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:45:23,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:45:23,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:45:23,741 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_do_ioctl [2022-11-18 19:45:23,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_do_ioctl [2022-11-18 19:45:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_post [2022-11-18 19:45:23,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_post [2022-11-18 19:45:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 19:45:23,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 19:45:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 19:45:23,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 19:45:23,743 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put [2022-11-18 19:45:23,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put [2022-11-18 19:45:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_write [2022-11-18 19:45:23,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_write [2022-11-18 19:45:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 19:45:23,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 19:45:23,744 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_select_mii [2022-11-18 19:45:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_select_mii [2022-11-18 19:45:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_edmac [2022-11-18 19:45:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_edmac [2022-11-18 19:45:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_read [2022-11-18 19:45:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_read [2022-11-18 19:45:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 19:45:23,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 19:45:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write [2022-11-18 19:45:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write [2022-11-18 19:45:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-18 19:45:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2022-11-18 19:45:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2022-11-18 19:45:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-18 19:45:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-18 19:45:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_disable_cam_entry_table [2022-11-18 19:45:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_disable_cam_entry_table [2022-11-18 19:45:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-18 19:45:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-18 19:45:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_vtag_index [2022-11-18 19:45:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_vtag_index [2022-11-18 19:45:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_edtrr_trns [2022-11-18 19:45:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_edtrr_trns [2022-11-18 19:45:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 19:45:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 19:45:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_giga [2022-11-18 19:45:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_giga [2022-11-18 19:45:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-18 19:45:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-18 19:45:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 19:45:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 19:45:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 19:45:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 19:45:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_resource [2022-11-18 19:45:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_resource [2022-11-18 19:45:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 19:45:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 19:45:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure bb_clr [2022-11-18 19:45:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_clr [2022-11-18 19:45:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:45:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:45:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_get_sync [2022-11-18 19:45:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_get_sync [2022-11-18 19:45:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_duplex [2022-11-18 19:45:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_duplex [2022-11-18 19:45:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-18 19:45:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-18 19:45:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-18 19:45:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-18 19:45:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_reg_offset [2022-11-18 19:45:23,844 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_reg_offset [2022-11-18 19:45:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_r8a7740 [2022-11-18 19:45:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_r8a7740 [2022-11-18 19:45:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 19:45:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 19:45:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset_giga [2022-11-18 19:45:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset_giga [2022-11-18 19:45:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_free_dma_buffer [2022-11-18 19:45:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_free_dma_buffer [2022-11-18 19:45:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:45:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_busy [2022-11-18 19:45:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_busy [2022-11-18 19:45:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_r8a777x [2022-11-18 19:45:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_r8a777x [2022-11-18 19:45:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-18 19:45:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-18 19:45:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-18 19:45:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-18 19:45:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-18 19:45:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-18 19:45:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:45:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-18 19:45:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-18 19:45:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2022-11-18 19:45:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2022-11-18 19:45:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-18 19:45:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-18 19:45:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-18 19:45:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-18 19:45:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-18 19:45:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-18 19:45:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-18 19:45:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 19:45:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 19:45:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tx_timeout [2022-11-18 19:45:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tx_timeout [2022-11-18 19:45:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-18 19:45:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-18 19:45:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_runtime_nop [2022-11-18 19:45:23,848 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_runtime_nop [2022-11-18 19:45:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:45:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:45:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_free [2022-11-18 19:45:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_free [2022-11-18 19:45:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-18 19:45:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-18 19:45:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_open [2022-11-18 19:45:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_open [2022-11-18 19:45:23,849 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-18 19:45:23,849 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-18 19:45:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 19:45:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 19:45:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_multicast_list [2022-11-18 19:45:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_multicast_list [2022-11-18 19:45:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 19:45:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 19:45:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-18 19:45:23,850 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-18 19:45:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_chip_reset [2022-11-18 19:45:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_chip_reset [2022-11-18 19:45:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 19:45:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 19:45:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 19:45:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_put_sync [2022-11-18 19:45:23,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_put_sync [2022-11-18 19:45:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 19:45:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 19:45:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read_entry [2022-11-18 19:45:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read_entry [2022-11-18 19:45:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_txfree [2022-11-18 19:45:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_txfree [2022-11-18 19:45:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 19:45:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_start_xmit [2022-11-18 19:45:23,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_start_xmit [2022-11-18 19:45:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-11-18 19:45:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-11-18 19:45:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_disable [2022-11-18 19:45:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_disable [2022-11-18 19:45:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-18 19:45:23,853 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-18 19:45:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-18 19:45:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-18 19:45:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:45:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 19:45:23,859 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 19:45:23,859 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 19:45:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 19:45:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_close [2022-11-18 19:45:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_close [2022-11-18 19:45:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_read [2022-11-18 19:45:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_read [2022-11-18 19:45:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_soft_swap [2022-11-18 19:45:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_soft_swap [2022-11-18 19:45:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 19:45:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 19:45:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-18 19:45:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-18 19:45:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_rz_fast_ether [2022-11-18 19:45:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_rz_fast_ether [2022-11-18 19:45:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure bb_set [2022-11-18 19:45:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_set [2022-11-18 19:45:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_find_entry [2022-11-18 19:45:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_find_entry [2022-11-18 19:45:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 19:45:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 19:45:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 19:45:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 19:45:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_dev_init [2022-11-18 19:45:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_dev_init [2022-11-18 19:45:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_get_stats [2022-11-18 19:45:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_get_stats [2022-11-18 19:45:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:45:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_kill_vid [2022-11-18 19:45:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_kill_vid [2022-11-18 19:45:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7724 [2022-11-18 19:45:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7724 [2022-11-18 19:45:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-11-18 19:45:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-11-18 19:45:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_disable [2022-11-18 19:45:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_disable [2022-11-18 19:45:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_adjust_link [2022-11-18 19:45:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_adjust_link [2022-11-18 19:45:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 19:45:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 19:45:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-18 19:45:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_vlan_rx_add_vid [2022-11-18 19:45:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_vlan_rx_add_vid [2022-11-18 19:45:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_ring_init [2022-11-18 19:45:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_ring_init [2022-11-18 19:45:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure __pm_runtime_idle [2022-11-18 19:45:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure __pm_runtime_idle [2022-11-18 19:45:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2022-11-18 19:45:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2022-11-18 19:45:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:45:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_purge_mcast [2022-11-18 19:45:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_purge_mcast [2022-11-18 19:45:23,867 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-18 19:45:23,867 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-18 19:45:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-18 19:45:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-18 19:45:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:45:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-18 19:45:23,868 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-18 19:45:23,868 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 19:45:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 19:45:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:45:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 19:45:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-18 19:45:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-18 19:45:23,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 19:45:23,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 19:45:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-18 19:45:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-18 19:45:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_register [2022-11-18 19:45:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_register [2022-11-18 19:45:23,870 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_is_gether [2022-11-18 19:45:23,870 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_is_gether [2022-11-18 19:45:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-18 19:45:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-18 19:45:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_sh7757 [2022-11-18 19:45:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_sh7757 [2022-11-18 19:45:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_receive_align [2022-11-18 19:45:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_receive_align [2022-11-18 19:45:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_rcv_snd_enable [2022-11-18 19:45:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_rcv_snd_enable [2022-11-18 19:45:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_offset [2022-11-18 19:45:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_offset [2022-11-18 19:45:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_set_rate_gether [2022-11-18 19:45:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_set_rate_gether [2022-11-18 19:45:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-18 19:45:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-18 19:45:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 19:45:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 19:45:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-18 19:45:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-18 19:45:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-18 19:45:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-18 19:45:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 19:45:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 19:45:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:45:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure sh_mdio_release [2022-11-18 19:45:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_mdio_release [2022-11-18 19:45:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_write_entry [2022-11-18 19:45:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_write_entry [2022-11-18 19:45:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure sh_eth_tsu_get_post_bit [2022-11-18 19:45:23,877 INFO L138 BoogieDeclarations]: Found implementation of procedure sh_eth_tsu_get_post_bit [2022-11-18 19:45:23,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:45:23,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:45:23,878 INFO L130 BoogieDeclarations]: Found specification of procedure free_mdio_bitbang [2022-11-18 19:45:23,879 INFO L138 BoogieDeclarations]: Found implementation of procedure free_mdio_bitbang [2022-11-18 19:45:23,879 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 19:45:23,880 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 19:45:24,954 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:45:24,961 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:45:25,527 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 19:46:15,237 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:46:15,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:46:15,259 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-18 19:46:15,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:15 BoogieIcfgContainer [2022-11-18 19:46:15,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:46:15,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:46:15,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:46:15,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:46:15,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:45:19" (1/3) ... [2022-11-18 19:46:15,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f488f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:46:15, skipping insertion in model container [2022-11-18 19:46:15,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:45:22" (2/3) ... [2022-11-18 19:46:15,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f488f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:46:15, skipping insertion in model container [2022-11-18 19:46:15,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:15" (3/3) ... [2022-11-18 19:46:15,285 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--renesas--sh_eth.ko-entry_point.cil.out.i [2022-11-18 19:46:15,306 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:46:15,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:46:15,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:46:15,438 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;@339bb579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:46:15,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:46:15,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 2373 states, 1636 states have (on average 1.378361858190709) internal successors, (2255), 1714 states have internal predecessors, (2255), 624 states have call successors, (624), 118 states have call predecessors, (624), 117 states have return successors, (605), 579 states have call predecessors, (605), 605 states have call successors, (605) [2022-11-18 19:46:15,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-18 19:46:15,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:15,477 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-11-18 19:46:15,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:46:15,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:15,484 INFO L85 PathProgramCache]: Analyzing trace with hash 840828417, now seen corresponding path program 1 times [2022-11-18 19:46:15,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:15,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996593837] [2022-11-18 19:46:15,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:15,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:16,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:46:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:16,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:46:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:46:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:46:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 19:46:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 19:46:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:46:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:46:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:46:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:46:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 19:46:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-18 19:46:17,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:17,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996593837] [2022-11-18 19:46:17,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996593837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:17,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:17,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:46:17,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231189840] [2022-11-18 19:46:17,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:17,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:17,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:17,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:17,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:17,231 INFO L87 Difference]: Start difference. First operand has 2373 states, 1636 states have (on average 1.378361858190709) internal successors, (2255), 1714 states have internal predecessors, (2255), 624 states have call successors, (624), 118 states have call predecessors, (624), 117 states have return successors, (605), 579 states have call predecessors, (605), 605 states have call successors, (605) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 19:46:19,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:46:21,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:46:23,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:46:42,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:42,142 INFO L93 Difference]: Finished difference Result 7672 states and 11658 transitions. [2022-11-18 19:46:42,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:46:42,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 87 [2022-11-18 19:46:42,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:42,212 INFO L225 Difference]: With dead ends: 7672 [2022-11-18 19:46:42,213 INFO L226 Difference]: Without dead ends: 5248 [2022-11-18 19:46:42,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:46:42,241 INFO L413 NwaCegarLoop]: 2791 mSDtfsCounter, 6427 mSDsluCounter, 4575 mSDsCounter, 0 mSdLazyCounter, 5334 mSolverCounterSat, 4213 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6825 SdHoareTripleChecker+Valid, 7366 SdHoareTripleChecker+Invalid, 9550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4213 IncrementalHoareTripleChecker+Valid, 5334 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:42,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6825 Valid, 7366 Invalid, 9550 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4213 Valid, 5334 Invalid, 3 Unknown, 0 Unchecked, 23.9s Time] [2022-11-18 19:46:42,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5248 states. [2022-11-18 19:46:42,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5248 to 4568. [2022-11-18 19:46:42,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4568 states, 3164 states have (on average 1.361567635903919) internal successors, (4308), 3266 states have internal predecessors, (4308), 1171 states have call successors, (1171), 233 states have call predecessors, (1171), 232 states have return successors, (1170), 1118 states have call predecessors, (1170), 1170 states have call successors, (1170) [2022-11-18 19:46:42,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4568 states to 4568 states and 6649 transitions. [2022-11-18 19:46:42,712 INFO L78 Accepts]: Start accepts. Automaton has 4568 states and 6649 transitions. Word has length 87 [2022-11-18 19:46:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:42,714 INFO L495 AbstractCegarLoop]: Abstraction has 4568 states and 6649 transitions. [2022-11-18 19:46:42,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 19:46:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 4568 states and 6649 transitions. [2022-11-18 19:46:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-18 19:46:42,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:42,730 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-11-18 19:46:42,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:46:42,730 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:46:42,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:42,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1701898109, now seen corresponding path program 1 times [2022-11-18 19:46:42,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:42,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101033724] [2022-11-18 19:46:42,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:42,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:46:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:46:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:46:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:46:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 19:46:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 19:46:44,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:46:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:46:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:46:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:46:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 19:46:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 19:46:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-11-18 19:46:44,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:44,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101033724] [2022-11-18 19:46:44,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101033724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:44,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:44,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:46:44,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768592600] [2022-11-18 19:46:44,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:44,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:46:44,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:44,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:46:44,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:46:44,268 INFO L87 Difference]: Start difference. First operand 4568 states and 6649 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 19:46:46,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:46:48,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:47:11,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:11,247 INFO L93 Difference]: Finished difference Result 14981 states and 22318 transitions. [2022-11-18 19:47:11,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:47:11,248 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 97 [2022-11-18 19:47:11,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:11,328 INFO L225 Difference]: With dead ends: 14981 [2022-11-18 19:47:11,329 INFO L226 Difference]: Without dead ends: 10433 [2022-11-18 19:47:11,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:47:11,360 INFO L413 NwaCegarLoop]: 3004 mSDtfsCounter, 6285 mSDsluCounter, 9302 mSDsCounter, 0 mSdLazyCounter, 9750 mSolverCounterSat, 4017 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6687 SdHoareTripleChecker+Valid, 12306 SdHoareTripleChecker+Invalid, 13769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4017 IncrementalHoareTripleChecker+Valid, 9750 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:11,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6687 Valid, 12306 Invalid, 13769 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4017 Valid, 9750 Invalid, 2 Unknown, 0 Unchecked, 25.8s Time] [2022-11-18 19:47:11,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10433 states. [2022-11-18 19:47:11,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10433 to 9371. [2022-11-18 19:47:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9371 states, 6492 states have (on average 1.3624460874922981) internal successors, (8845), 6714 states have internal predecessors, (8845), 2388 states have call successors, (2388), 465 states have call predecessors, (2388), 490 states have return successors, (2560), 2293 states have call predecessors, (2560), 2387 states have call successors, (2560) [2022-11-18 19:47:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9371 states to 9371 states and 13793 transitions. [2022-11-18 19:47:11,948 INFO L78 Accepts]: Start accepts. Automaton has 9371 states and 13793 transitions. Word has length 97 [2022-11-18 19:47:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:11,951 INFO L495 AbstractCegarLoop]: Abstraction has 9371 states and 13793 transitions. [2022-11-18 19:47:11,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 19:47:11,952 INFO L276 IsEmpty]: Start isEmpty. Operand 9371 states and 13793 transitions. [2022-11-18 19:47:11,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-18 19:47:11,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:11,983 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:11,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:47:11,984 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:47:11,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:11,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1083428149, now seen corresponding path program 1 times [2022-11-18 19:47:11,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:11,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220913832] [2022-11-18 19:47:11,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:11,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:12,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:12,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220913832] [2022-11-18 19:47:12,367 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:47:12,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011332425] [2022-11-18 19:47:12,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:12,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:12,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:12,371 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:12,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:47:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:14,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 5322 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:47:14,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-18 19:47:14,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:14,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011332425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:14,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:14,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567619639] [2022-11-18 19:47:14,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:14,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:47:14,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:14,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:47:14,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:14,115 INFO L87 Difference]: Start difference. First operand 9371 states and 13793 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 19:47:14,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:14,489 INFO L93 Difference]: Finished difference Result 18720 states and 27557 transitions. [2022-11-18 19:47:14,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:47:14,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 218 [2022-11-18 19:47:14,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:14,550 INFO L225 Difference]: With dead ends: 18720 [2022-11-18 19:47:14,550 INFO L226 Difference]: Without dead ends: 9375 [2022-11-18 19:47:14,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:14,595 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 0 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6753 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:14,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6753 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:47:14,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9375 states. [2022-11-18 19:47:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9375 to 9375. [2022-11-18 19:47:15,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9375 states, 6496 states have (on average 1.3622229064039408) internal successors, (8849), 6718 states have internal predecessors, (8849), 2388 states have call successors, (2388), 465 states have call predecessors, (2388), 490 states have return successors, (2560), 2293 states have call predecessors, (2560), 2387 states have call successors, (2560) [2022-11-18 19:47:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9375 states to 9375 states and 13797 transitions. [2022-11-18 19:47:15,231 INFO L78 Accepts]: Start accepts. Automaton has 9375 states and 13797 transitions. Word has length 218 [2022-11-18 19:47:15,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:15,232 INFO L495 AbstractCegarLoop]: Abstraction has 9375 states and 13797 transitions. [2022-11-18 19:47:15,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 19:47:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 9375 states and 13797 transitions. [2022-11-18 19:47:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-18 19:47:15,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:15,257 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:15,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:15,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:15,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:47:15,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:15,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1369063433, now seen corresponding path program 1 times [2022-11-18 19:47:15,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:15,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589893168] [2022-11-18 19:47:15,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:15,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:15,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:15,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589893168] [2022-11-18 19:47:15,815 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:47:15,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360973628] [2022-11-18 19:47:15,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:15,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:15,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:15,817 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:15,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:47:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:17,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 5325 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:47:17,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-18 19:47:17,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:17,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360973628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:17,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:17,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:17,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319800958] [2022-11-18 19:47:17,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:17,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:47:17,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:17,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:47:17,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:17,534 INFO L87 Difference]: Start difference. First operand 9375 states and 13797 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 19:47:17,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:17,883 INFO L93 Difference]: Finished difference Result 18728 states and 27565 transitions. [2022-11-18 19:47:17,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:47:17,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 218 [2022-11-18 19:47:17,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:17,940 INFO L225 Difference]: With dead ends: 18728 [2022-11-18 19:47:17,940 INFO L226 Difference]: Without dead ends: 9379 [2022-11-18 19:47:17,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:17,982 INFO L413 NwaCegarLoop]: 3379 mSDtfsCounter, 0 mSDsluCounter, 3374 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6753 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:17,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6753 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:47:17,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9379 states. [2022-11-18 19:47:18,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9379 to 9379. [2022-11-18 19:47:18,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9379 states, 6500 states have (on average 1.362) internal successors, (8853), 6722 states have internal predecessors, (8853), 2388 states have call successors, (2388), 465 states have call predecessors, (2388), 490 states have return successors, (2560), 2293 states have call predecessors, (2560), 2387 states have call successors, (2560) [2022-11-18 19:47:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9379 states to 9379 states and 13801 transitions. [2022-11-18 19:47:18,481 INFO L78 Accepts]: Start accepts. Automaton has 9379 states and 13801 transitions. Word has length 218 [2022-11-18 19:47:18,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:18,483 INFO L495 AbstractCegarLoop]: Abstraction has 9379 states and 13801 transitions. [2022-11-18 19:47:18,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 19:47:18,484 INFO L276 IsEmpty]: Start isEmpty. Operand 9379 states and 13801 transitions. [2022-11-18 19:47:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-11-18 19:47:18,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:18,509 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:18,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:18,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:18,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:47:18,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:18,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1036420295, now seen corresponding path program 1 times [2022-11-18 19:47:18,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:18,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620111249] [2022-11-18 19:47:18,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:18,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:19,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:19,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620111249] [2022-11-18 19:47:19,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-18 19:47:19,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070650676] [2022-11-18 19:47:19,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:19,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:19,172 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:19,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:47:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:20,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 5328 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:47:20,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:20,965 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-11-18 19:47:20,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:20,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070650676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:20,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:20,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:47:20,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583459443] [2022-11-18 19:47:20,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:20,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:47:20,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:20,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:47:20,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:20,968 INFO L87 Difference]: Start difference. First operand 9379 states and 13801 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 19:47:21,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:21,717 INFO L93 Difference]: Finished difference Result 27453 states and 40347 transitions. [2022-11-18 19:47:21,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:47:21,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 218 [2022-11-18 19:47:21,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:21,823 INFO L225 Difference]: With dead ends: 27453 [2022-11-18 19:47:21,824 INFO L226 Difference]: Without dead ends: 18100 [2022-11-18 19:47:21,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:47:21,868 INFO L413 NwaCegarLoop]: 3918 mSDtfsCounter, 3102 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 7225 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:21,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 7225 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:21,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18100 states. [2022-11-18 19:47:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18100 to 18087. [2022-11-18 19:47:22,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18087 states, 12504 states have (on average 1.3590051183621241) internal successors, (16993), 12946 states have internal predecessors, (16993), 4602 states have call successors, (4602), 929 states have call predecessors, (4602), 980 states have return successors, (4932), 4411 states have call predecessors, (4932), 4601 states have call successors, (4932) [2022-11-18 19:47:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18087 states to 18087 states and 26527 transitions. [2022-11-18 19:47:23,013 INFO L78 Accepts]: Start accepts. Automaton has 18087 states and 26527 transitions. Word has length 218 [2022-11-18 19:47:23,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:23,014 INFO L495 AbstractCegarLoop]: Abstraction has 18087 states and 26527 transitions. [2022-11-18 19:47:23,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-18 19:47:23,014 INFO L276 IsEmpty]: Start isEmpty. Operand 18087 states and 26527 transitions. [2022-11-18 19:47:23,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-18 19:47:23,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:23,044 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:23,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:23,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:23,261 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:47:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1874776189, now seen corresponding path program 1 times [2022-11-18 19:47:23,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:23,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154618571] [2022-11-18 19:47:23,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:23,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:47:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:47:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:47:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 19:47:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 19:47:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:47:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:47:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:47:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:47:23,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 19:47:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:23,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 19:47:23,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:47:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 19:47:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:47:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:47:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 19:47:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 19:47:24,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 19:47:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-18 19:47:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-18 19:47:24,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:24,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154618571] [2022-11-18 19:47:24,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154618571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:24,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:24,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-18 19:47:24,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270801103] [2022-11-18 19:47:24,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:24,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:47:24,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:24,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:47:24,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:47:24,913 INFO L87 Difference]: Start difference. First operand 18087 states and 26527 transitions. Second operand has 13 states, 12 states have (on average 12.0) internal successors, (144), 7 states have internal predecessors, (144), 3 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-18 19:47:27,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:47:52,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:52,266 INFO L93 Difference]: Finished difference Result 37728 states and 55975 transitions. [2022-11-18 19:47:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:47:52,268 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 12.0) internal successors, (144), 7 states have internal predecessors, (144), 3 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) Word has length 262 [2022-11-18 19:47:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:52,393 INFO L225 Difference]: With dead ends: 37728 [2022-11-18 19:47:52,393 INFO L226 Difference]: Without dead ends: 19667 [2022-11-18 19:47:52,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:47:52,472 INFO L413 NwaCegarLoop]: 2068 mSDtfsCounter, 3832 mSDsluCounter, 14337 mSDsCounter, 0 mSdLazyCounter, 14787 mSolverCounterSat, 1521 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4205 SdHoareTripleChecker+Valid, 16405 SdHoareTripleChecker+Invalid, 16309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1521 IncrementalHoareTripleChecker+Valid, 14787 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:52,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4205 Valid, 16405 Invalid, 16309 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1521 Valid, 14787 Invalid, 1 Unknown, 0 Unchecked, 25.4s Time] [2022-11-18 19:47:52,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19667 states. [2022-11-18 19:47:53,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19667 to 17495. [2022-11-18 19:47:53,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17495 states, 12056 states have (on average 1.348457199734572) internal successors, (16257), 12494 states have internal predecessors, (16257), 4450 states have call successors, (4450), 929 states have call predecessors, (4450), 988 states have return successors, (4776), 4263 states have call predecessors, (4776), 4449 states have call successors, (4776) [2022-11-18 19:47:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17495 states to 17495 states and 25483 transitions. [2022-11-18 19:47:53,756 INFO L78 Accepts]: Start accepts. Automaton has 17495 states and 25483 transitions. Word has length 262 [2022-11-18 19:47:53,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:53,756 INFO L495 AbstractCegarLoop]: Abstraction has 17495 states and 25483 transitions. [2022-11-18 19:47:53,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 12.0) internal successors, (144), 7 states have internal predecessors, (144), 3 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-18 19:47:53,757 INFO L276 IsEmpty]: Start isEmpty. Operand 17495 states and 25483 transitions. [2022-11-18 19:47:53,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-18 19:47:53,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:53,784 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:53,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:47:53,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:47:53,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:53,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1817871869, now seen corresponding path program 1 times [2022-11-18 19:47:53,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:53,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712032131] [2022-11-18 19:47:53,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:53,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:47:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:47:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:47:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 19:47:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 19:47:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:47:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:47:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:47:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:47:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 19:47:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:47:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:54,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:47:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:47:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:47:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-18 19:47:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:47:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 19:47:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 19:47:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 19:47:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:47:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:47:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-18 19:47:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-18 19:47:54,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:54,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712032131] [2022-11-18 19:47:54,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712032131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:54,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:54,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:47:54,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936108197] [2022-11-18 19:47:54,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:54,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:47:54,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:54,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:47:54,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:47:54,774 INFO L87 Difference]: Start difference. First operand 17495 states and 25483 transitions. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-18 19:47:56,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:47:58,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:48:18,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:18,466 INFO L93 Difference]: Finished difference Result 52905 states and 78386 transitions. [2022-11-18 19:48:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:48:18,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 267 [2022-11-18 19:48:18,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:18,655 INFO L225 Difference]: With dead ends: 52905 [2022-11-18 19:48:18,655 INFO L226 Difference]: Without dead ends: 35436 [2022-11-18 19:48:18,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2022-11-18 19:48:18,740 INFO L413 NwaCegarLoop]: 2423 mSDtfsCounter, 7245 mSDsluCounter, 5615 mSDsCounter, 0 mSdLazyCounter, 8056 mSolverCounterSat, 5057 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7794 SdHoareTripleChecker+Valid, 8038 SdHoareTripleChecker+Invalid, 13115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5057 IncrementalHoareTripleChecker+Valid, 8056 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:18,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7794 Valid, 8038 Invalid, 13115 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5057 Valid, 8056 Invalid, 2 Unknown, 0 Unchecked, 21.6s Time] [2022-11-18 19:48:18,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35436 states. [2022-11-18 19:48:20,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35436 to 31355. [2022-11-18 19:48:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31355 states, 21654 states have (on average 1.350697330747206) internal successors, (29248), 22514 states have internal predecessors, (29248), 7896 states have call successors, (7896), 1689 states have call predecessors, (7896), 1804 states have return successors, (8483), 7515 states have call predecessors, (8483), 7895 states have call successors, (8483) [2022-11-18 19:48:20,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31355 states to 31355 states and 45627 transitions. [2022-11-18 19:48:20,904 INFO L78 Accepts]: Start accepts. Automaton has 31355 states and 45627 transitions. Word has length 267 [2022-11-18 19:48:20,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:20,905 INFO L495 AbstractCegarLoop]: Abstraction has 31355 states and 45627 transitions. [2022-11-18 19:48:20,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-18 19:48:20,905 INFO L276 IsEmpty]: Start isEmpty. Operand 31355 states and 45627 transitions. [2022-11-18 19:48:20,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-18 19:48:20,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:20,932 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:20,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:48:20,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:20,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:20,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1650641467, now seen corresponding path program 1 times [2022-11-18 19:48:20,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:20,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067589332] [2022-11-18 19:48:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:20,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:21,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:48:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:21,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-18 19:48:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:48:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:48:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-18 19:48:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 19:48:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:48:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:48:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 19:48:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:48:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 19:48:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 19:48:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:48:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:48:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:48:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:48:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:48:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 19:48:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 19:48:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:48:22,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:48:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 19:48:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:48:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-11-18 19:48:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:48:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-18 19:48:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:48:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:48:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-18 19:48:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-18 19:48:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-11-18 19:48:22,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:22,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067589332] [2022-11-18 19:48:22,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067589332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:22,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:22,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:48:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358220516] [2022-11-18 19:48:22,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:22,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:48:22,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:48:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:48:22,551 INFO L87 Difference]: Start difference. First operand 31355 states and 45627 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 19:48:24,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:48:26,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 19:48:45,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:45,929 INFO L93 Difference]: Finished difference Result 101069 states and 148852 transitions. [2022-11-18 19:48:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:48:45,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 260 [2022-11-18 19:48:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:46,525 INFO L225 Difference]: With dead ends: 101069 [2022-11-18 19:48:46,526 INFO L226 Difference]: Without dead ends: 69740 [2022-11-18 19:48:46,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:48:46,650 INFO L413 NwaCegarLoop]: 2640 mSDtfsCounter, 6628 mSDsluCounter, 4192 mSDsCounter, 0 mSdLazyCounter, 5944 mSolverCounterSat, 3785 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7235 SdHoareTripleChecker+Valid, 6832 SdHoareTripleChecker+Invalid, 9731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3785 IncrementalHoareTripleChecker+Valid, 5944 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:46,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7235 Valid, 6832 Invalid, 9731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3785 Valid, 5944 Invalid, 2 Unknown, 0 Unchecked, 19.2s Time] [2022-11-18 19:48:46,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69740 states. [2022-11-18 19:48:50,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69740 to 61651. [2022-11-18 19:48:50,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61651 states, 42570 states have (on average 1.3507164669955367) internal successors, (57500), 44294 states have internal predecessors, (57500), 15504 states have call successors, (15504), 3345 states have call predecessors, (15504), 3576 states have return successors, (16597), 14739 states have call predecessors, (16597), 15503 states have call successors, (16597) [2022-11-18 19:48:50,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61651 states to 61651 states and 89601 transitions. [2022-11-18 19:48:50,918 INFO L78 Accepts]: Start accepts. Automaton has 61651 states and 89601 transitions. Word has length 260 [2022-11-18 19:48:50,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:50,919 INFO L495 AbstractCegarLoop]: Abstraction has 61651 states and 89601 transitions. [2022-11-18 19:48:50,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (36), 6 states have call predecessors, (36), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-11-18 19:48:50,920 INFO L276 IsEmpty]: Start isEmpty. Operand 61651 states and 89601 transitions. [2022-11-18 19:48:51,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-18 19:48:51,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:51,492 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:51,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:48:51,493 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:48:51,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:51,493 INFO L85 PathProgramCache]: Analyzing trace with hash -857423488, now seen corresponding path program 1 times [2022-11-18 19:48:51,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:51,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857889460] [2022-11-18 19:48:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:51,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:51,747 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:48:51,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97018804] [2022-11-18 19:48:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:51,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:48:51,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:51,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:48:51,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:48:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:53,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 5857 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:48:53,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:53,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-18 19:48:53,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:48:53,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:53,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857889460] [2022-11-18 19:48:53,891 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:48:53,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97018804] [2022-11-18 19:48:53,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97018804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:53,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:53,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:48:53,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534421354] [2022-11-18 19:48:53,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:53,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:48:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:53,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:48:53,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:48:53,895 INFO L87 Difference]: Start difference. First operand 61651 states and 89601 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 19:48:57,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:57,030 INFO L93 Difference]: Finished difference Result 123324 states and 179229 transitions. [2022-11-18 19:48:57,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:48:57,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 328 [2022-11-18 19:48:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:57,313 INFO L225 Difference]: With dead ends: 123324 [2022-11-18 19:48:57,314 INFO L226 Difference]: Without dead ends: 61699 [2022-11-18 19:48:57,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:48:57,683 INFO L413 NwaCegarLoop]: 3242 mSDtfsCounter, 3 mSDsluCounter, 6477 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9719 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:57,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 9719 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:48:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61699 states. [2022-11-18 19:49:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61699 to 61683. [2022-11-18 19:49:01,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61683 states, 42602 states have (on average 1.3504530303741609) internal successors, (57532), 44326 states have internal predecessors, (57532), 15504 states have call successors, (15504), 3345 states have call predecessors, (15504), 3576 states have return successors, (16597), 14739 states have call predecessors, (16597), 15503 states have call successors, (16597) [2022-11-18 19:49:01,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61683 states to 61683 states and 89633 transitions. [2022-11-18 19:49:01,701 INFO L78 Accepts]: Start accepts. Automaton has 61683 states and 89633 transitions. Word has length 328 [2022-11-18 19:49:01,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:01,702 INFO L495 AbstractCegarLoop]: Abstraction has 61683 states and 89633 transitions. [2022-11-18 19:49:01,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 19:49:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 61683 states and 89633 transitions. [2022-11-18 19:49:01,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-18 19:49:01,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:01,761 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:01,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:01,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-18 19:49:01,980 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:01,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:01,981 INFO L85 PathProgramCache]: Analyzing trace with hash -386067138, now seen corresponding path program 1 times [2022-11-18 19:49:01,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:01,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681585945] [2022-11-18 19:49:01,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:01,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:02,248 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:49:02,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904474184] [2022-11-18 19:49:02,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:02,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:02,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:02,250 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:02,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:49:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:04,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 5860 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:49:04,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-18 19:49:04,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:49:04,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:04,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681585945] [2022-11-18 19:49:04,603 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:49:04,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904474184] [2022-11-18 19:49:04,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904474184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:04,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:04,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:49:04,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687259312] [2022-11-18 19:49:04,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:04,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:49:04,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:04,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:49:04,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:49:04,607 INFO L87 Difference]: Start difference. First operand 61683 states and 89633 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 19:49:09,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:09,241 INFO L93 Difference]: Finished difference Result 123436 states and 179341 transitions. [2022-11-18 19:49:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:49:09,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 328 [2022-11-18 19:49:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:09,497 INFO L225 Difference]: With dead ends: 123436 [2022-11-18 19:49:09,497 INFO L226 Difference]: Without dead ends: 61779 [2022-11-18 19:49:09,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:49:09,660 INFO L413 NwaCegarLoop]: 3242 mSDtfsCounter, 9 mSDsluCounter, 6475 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 9717 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:09,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 9717 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:49:09,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61779 states. [2022-11-18 19:49:13,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61779 to 61715. [2022-11-18 19:49:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61715 states, 42634 states have (on average 1.3501899892104894) internal successors, (57564), 44358 states have internal predecessors, (57564), 15504 states have call successors, (15504), 3345 states have call predecessors, (15504), 3576 states have return successors, (16597), 14739 states have call predecessors, (16597), 15503 states have call successors, (16597) [2022-11-18 19:49:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61715 states to 61715 states and 89665 transitions. [2022-11-18 19:49:13,741 INFO L78 Accepts]: Start accepts. Automaton has 61715 states and 89665 transitions. Word has length 328 [2022-11-18 19:49:13,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:13,742 INFO L495 AbstractCegarLoop]: Abstraction has 61715 states and 89665 transitions. [2022-11-18 19:49:13,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-18 19:49:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 61715 states and 89665 transitions. [2022-11-18 19:49:13,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2022-11-18 19:49:13,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:13,806 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:13,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:14,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 19:49:14,026 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:14,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:14,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1615819132, now seen corresponding path program 1 times [2022-11-18 19:49:14,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:49:14,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186826693] [2022-11-18 19:49:14,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:14,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:49:14,279 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-18 19:49:14,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [555555882] [2022-11-18 19:49:14,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:14,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:49:14,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:49:14,282 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:49:14,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8e0d7bf9-2510-468c-94f4-50415841580a/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:49:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:49:16,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 5863 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:49:16,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:49:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 560 proven. 5 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2022-11-18 19:49:17,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:49:18,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2022-11-18 19:49:18,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:49:18,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186826693] [2022-11-18 19:49:18,469 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-18 19:49:18,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555555882] [2022-11-18 19:49:18,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555555882] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-18 19:49:18,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:49:18,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2022-11-18 19:49:18,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819762511] [2022-11-18 19:49:18,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:18,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:49:18,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:49:18,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:49:18,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:49:18,473 INFO L87 Difference]: Start difference. First operand 61715 states and 89665 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 5 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2022-11-18 19:49:20,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []