./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--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/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--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN --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 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 --- 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-6b4ec56 [2022-11-20 10:57:04,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:57:04,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:57:04,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:57:04,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:57:04,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:57:04,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:57:04,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:57:04,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:57:04,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:57:04,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:57:04,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:57:04,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:57:04,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:57:04,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:57:04,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:57:04,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:57:04,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:57:04,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:57:04,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:57:04,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:57:04,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:57:04,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:57:04,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:57:04,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:57:04,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:57:04,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:57:04,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:57:04,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:57:04,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:57:04,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:57:04,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:57:04,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:57:04,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:57:04,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:57:04,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:57:04,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:57:04,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:57:04,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:57:04,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:57:04,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:57:04,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 10:57:04,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:57:04,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:57:04,525 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:57:04,525 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:57:04,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:57:04,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:57:04,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:57:04,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:57:04,528 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:57:04,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:57:04,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:57:04,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:57:04,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:57:04,530 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:57:04,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:57:04,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:57:04,531 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:57:04,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:57:04,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:57:04,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:57:04,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:57:04,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:57:04,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:57:04,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:57:04,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:57:04,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:57:04,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:57:04,539 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:57:04,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:57:04,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:57:04,540 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_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5df375afe9fb68708289d9f3c6788a2547ede1538b0aa584ee561e48e9fb4c63 [2022-11-20 10:57:04,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:57:04,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:57:04,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:57:04,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:57:04,905 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:57:04,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-20 10:57:08,235 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:57:09,007 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:57:09,008 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-20 10:57:09,069 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/data/04f09128f/66ba3e3248ed462cb32bbc053aba3eee/FLAG05b80a88a [2022-11-20 10:57:09,088 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/data/04f09128f/66ba3e3248ed462cb32bbc053aba3eee [2022-11-20 10:57:09,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:57:09,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:57:09,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:09,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:57:09,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:57:09,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:09,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b6553f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:09, skipping insertion in model container [2022-11-20 10:57:09,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:57:09" (1/1) ... [2022-11-20 10:57:09,113 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:57:09,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:57:10,752 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2022-11-20 10:57:12,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:12,671 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:57:12,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i[209494,209507] [2022-11-20 10:57:13,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:57:13,323 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:57:13,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13 WrapperNode [2022-11-20 10:57:13,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:57:13,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:13,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:57:13,325 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:57:13,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:13,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:13,769 INFO L138 Inliner]: procedures = 382, calls = 4336, calls flagged for inlining = 180, calls inlined = 177, statements flattened = 8035 [2022-11-20 10:57:13,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:57:13,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:57:13,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:57:13,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:57:13,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:13,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:13,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:13,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:14,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:14,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:14,203 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:14,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:14,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:57:14,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:57:14,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:57:14,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:57:14,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (1/1) ... [2022-11-20 10:57:14,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:57:14,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:57:14,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:57:14,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:57:14,380 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2022-11-20 10:57:14,380 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2022-11-20 10:57:14,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2022-11-20 10:57:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2022-11-20 10:57:14,381 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2022-11-20 10:57:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2022-11-20 10:57:14,381 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-20 10:57:14,381 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-20 10:57:14,381 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2022-11-20 10:57:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2022-11-20 10:57:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2022-11-20 10:57:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2022-11-20 10:57:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2022-11-20 10:57:14,382 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2022-11-20 10:57:14,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 10:57:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 10:57:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_tx [2022-11-20 10:57:14,383 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_tx [2022-11-20 10:57:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-20 10:57:14,383 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-20 10:57:14,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-20 10:57:14,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-20 10:57:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2022-11-20 10:57:14,384 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2022-11-20 10:57:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-20 10:57:14,384 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-20 10:57:14,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_5 [2022-11-20 10:57:14,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_5 [2022-11-20 10:57:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_4 [2022-11-20 10:57:14,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_4 [2022-11-20 10:57:14,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-11-20 10:57:14,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-11-20 10:57:14,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-20 10:57:14,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-20 10:57:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2022-11-20 10:57:14,387 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2022-11-20 10:57:14,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2022-11-20 10:57:14,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2022-11-20 10:57:14,388 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2022-11-20 10:57:14,389 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2022-11-20 10:57:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_7 [2022-11-20 10:57:14,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_7 [2022-11-20 10:57:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2022-11-20 10:57:14,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2022-11-20 10:57:14,389 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2022-11-20 10:57:14,390 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2022-11-20 10:57:14,390 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2022-11-20 10:57:14,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2022-11-20 10:57:14,390 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2022-11-20 10:57:14,390 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2022-11-20 10:57:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_set_channel [2022-11-20 10:57:14,391 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_set_channel [2022-11-20 10:57:14,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-20 10:57:14,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-20 10:57:14,392 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_writereg [2022-11-20 10:57:14,392 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_writereg [2022-11-20 10:57:14,392 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-20 10:57:14,393 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-20 10:57:14,393 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_generic_frame_duration [2022-11-20 10:57:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_generic_frame_duration [2022-11-20 10:57:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-20 10:57:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-20 10:57:14,394 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-20 10:57:14,394 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-20 10:57:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-20 10:57:14,395 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-20 10:57:14,395 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2022-11-20 10:57:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2022-11-20 10:57:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-20 10:57:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-20 10:57:14,396 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2022-11-20 10:57:14,396 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2022-11-20 10:57:14,397 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 10:57:14,397 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 10:57:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2022-11-20 10:57:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2022-11-20 10:57:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_int_disable [2022-11-20 10:57:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_int_disable [2022-11-20 10:57:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-20 10:57:14,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-20 10:57:14,398 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-20 10:57:14,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-20 10:57:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-20 10:57:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-20 10:57:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2022-11-20 10:57:14,400 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2022-11-20 10:57:14,400 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2022-11-20 10:57:14,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2022-11-20 10:57:14,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:57:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2022-11-20 10:57:14,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2022-11-20 10:57:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2022-11-20 10:57:14,402 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2022-11-20 10:57:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2022-11-20 10:57:14,402 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2022-11-20 10:57:14,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:57:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_stop [2022-11-20 10:57:14,403 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_stop [2022-11-20 10:57:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-11-20 10:57:14,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-11-20 10:57:14,403 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2022-11-20 10:57:14,404 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2022-11-20 10:57:14,404 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2022-11-20 10:57:14,405 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2022-11-20 10:57:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-11-20 10:57:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2022-11-20 10:57:14,405 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2022-11-20 10:57:14,405 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-20 10:57:14,406 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-20 10:57:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-20 10:57:14,406 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-20 10:57:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:57:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 10:57:14,406 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2022-11-20 10:57:14,407 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2022-11-20 10:57:14,407 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_init [2022-11-20 10:57:14,407 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_init [2022-11-20 10:57:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2022-11-20 10:57:14,408 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2022-11-20 10:57:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-20 10:57:14,412 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-20 10:57:14,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___skb_dequeue_14 [2022-11-20 10:57:14,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___skb_dequeue_14 [2022-11-20 10:57:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-20 10:57:14,414 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-20 10:57:14,415 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2022-11-20 10:57:14,416 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2022-11-20 10:57:14,416 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2022-11-20 10:57:14,422 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2022-11-20 10:57:14,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-20 10:57:14,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-20 10:57:14,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-20 10:57:14,422 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2022-11-20 10:57:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2022-11-20 10:57:14,423 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-20 10:57:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-20 10:57:14,423 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-20 10:57:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-20 10:57:14,423 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2022-11-20 10:57:14,423 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2022-11-20 10:57:14,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 10:57:14,424 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2022-11-20 10:57:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2022-11-20 10:57:14,424 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2022-11-20 10:57:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2022-11-20 10:57:14,424 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_rf_readreg [2022-11-20 10:57:14,424 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_rf_readreg [2022-11-20 10:57:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:57:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-20 10:57:14,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-20 10:57:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2022-11-20 10:57:14,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2022-11-20 10:57:14,425 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2022-11-20 10:57:14,425 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2022-11-20 10:57:14,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 10:57:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 10:57:14,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-20 10:57:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-20 10:57:14,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-11-20 10:57:14,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-11-20 10:57:14,426 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2022-11-20 10:57:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2022-11-20 10:57:14,427 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_rx [2022-11-20 10:57:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_rx [2022-11-20 10:57:14,427 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2022-11-20 10:57:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2022-11-20 10:57:14,427 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-20 10:57:14,427 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-20 10:57:14,428 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2022-11-20 10:57:14,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2022-11-20 10:57:14,428 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2022-11-20 10:57:14,428 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2022-11-20 10:57:14,428 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2022-11-20 10:57:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2022-11-20 10:57:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-20 10:57:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-20 10:57:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:57:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-20 10:57:14,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-20 10:57:14,429 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2022-11-20 10:57:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2022-11-20 10:57:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2022-11-20 10:57:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2022-11-20 10:57:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2022-11-20 10:57:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2022-11-20 10:57:14,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-20 10:57:14,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-20 10:57:14,431 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2022-11-20 10:57:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2022-11-20 10:57:14,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-11-20 10:57:14,431 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2022-11-20 10:57:14,431 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2022-11-20 10:57:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2022-11-20 10:57:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2022-11-20 10:57:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_conf_ac_parm [2022-11-20 10:57:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_conf_ac_parm [2022-11-20 10:57:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:57:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:57:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-20 10:57:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-20 10:57:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2022-11-20 10:57:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2022-11-20 10:57:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2022-11-20 10:57:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2022-11-20 10:57:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-20 10:57:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-20 10:57:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:57:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-20 10:57:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-20 10:57:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2022-11-20 10:57:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2022-11-20 10:57:14,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:57:14,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-20 10:57:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2022-11-20 10:57:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2022-11-20 10:57:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2022-11-20 10:57:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2022-11-20 10:57:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_stop [2022-11-20 10:57:14,436 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_stop [2022-11-20 10:57:14,436 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-11-20 10:57:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-11-20 10:57:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225se_rf_init [2022-11-20 10:57:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225se_rf_init [2022-11-20 10:57:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2022-11-20 10:57:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2022-11-20 10:57:14,437 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2022-11-20 10:57:14,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2022-11-20 10:57:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-20 10:57:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-20 10:57:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-20 10:57:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-20 10:57:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-20 10:57:14,438 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-20 10:57:14,438 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2022-11-20 10:57:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2022-11-20 10:57:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2022-11-20 10:57:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2022-11-20 10:57:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam2 [2022-11-20 10:57:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam2 [2022-11-20 10:57:14,439 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2022-11-20 10:57:14,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2022-11-20 10:57:14,440 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2022-11-20 10:57:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2022-11-20 10:57:14,440 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2022-11-20 10:57:14,440 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2022-11-20 10:57:14,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:57:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2022-11-20 10:57:14,445 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2022-11-20 10:57:14,445 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187se_three_wire_io [2022-11-20 10:57:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187se_three_wire_io [2022-11-20 10:57:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_conf_basic_rates [2022-11-20 10:57:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_conf_basic_rates [2022-11-20 10:57:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2022-11-20 10:57:14,446 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2022-11-20 10:57:14,446 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2022-11-20 10:57:14,447 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2022-11-20 10:57:14,447 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-20 10:57:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-20 10:57:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-11-20 10:57:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:57:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:57:14,448 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2022-11-20 10:57:14,448 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2022-11-20 10:57:15,719 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:57:15,723 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:57:16,237 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-20 10:57:26,554 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:57:26,576 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:57:26,576 INFO L300 CfgBuilder]: Removed 81 assume(true) statements. [2022-11-20 10:57:26,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:26 BoogieIcfgContainer [2022-11-20 10:57:26,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:57:26,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:57:26,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:57:26,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:57:26,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:57:09" (1/3) ... [2022-11-20 10:57:26,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afcd78c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:57:26, skipping insertion in model container [2022-11-20 10:57:26,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:57:13" (2/3) ... [2022-11-20 10:57:26,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afcd78c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:57:26, skipping insertion in model container [2022-11-20 10:57:26,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:57:26" (3/3) ... [2022-11-20 10:57:26,591 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8180--rtl818x_pci.ko-entry_point.cil.out.i [2022-11-20 10:57:26,612 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:57:26,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:57:26,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:57:26,773 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;@3fe361e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:57:26,773 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:57:26,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 3606 states, 2058 states have (on average 1.3119533527696794) internal successors, (2700), 2213 states have internal predecessors, (2700), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) [2022-11-20 10:57:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-20 10:57:26,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:57:26,817 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-20 10:57:26,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:57:26,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:26,823 INFO L85 PathProgramCache]: Analyzing trace with hash -452202724, now seen corresponding path program 1 times [2022-11-20 10:57:26,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:26,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713981093] [2022-11-20 10:57:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:26,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:57:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:57:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 10:57:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:57:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:57:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:57:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 10:57:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 10:57:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 10:57:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:28,295 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-20 10:57:28,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:28,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713981093] [2022-11-20 10:57:28,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713981093] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:28,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:28,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:57:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888864784] [2022-11-20 10:57:28,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:28,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:57:28,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:28,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:57:28,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:57:28,357 INFO L87 Difference]: Start difference. First operand has 3606 states, 2058 states have (on average 1.3119533527696794) internal successors, (2700), 2213 states have internal predecessors, (2700), 1503 states have call successors, (1503), 122 states have call predecessors, (1503), 121 states have return successors, (1489), 1454 states have call predecessors, (1489), 1489 states have call successors, (1489) Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 10:57:34,254 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 [] [2022-11-20 10:57:36,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:37,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:39,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:47,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:49,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:57:51,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:08,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:08,190 INFO L93 Difference]: Finished difference Result 10692 states and 17081 transitions. [2022-11-20 10:58:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 10:58:08,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 78 [2022-11-20 10:58:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:08,281 INFO L225 Difference]: With dead ends: 10692 [2022-11-20 10:58:08,282 INFO L226 Difference]: Without dead ends: 7049 [2022-11-20 10:58:08,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-20 10:58:08,322 INFO L413 NwaCegarLoop]: 3345 mSDtfsCounter, 7554 mSDsluCounter, 4902 mSDsCounter, 0 mSdLazyCounter, 9204 mSolverCounterSat, 10795 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8055 SdHoareTripleChecker+Valid, 8247 SdHoareTripleChecker+Invalid, 20003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10795 IncrementalHoareTripleChecker+Valid, 9204 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:08,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8055 Valid, 8247 Invalid, 20003 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10795 Valid, 9204 Invalid, 4 Unknown, 0 Unchecked, 38.3s Time] [2022-11-20 10:58:08,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7049 states. [2022-11-20 10:58:09,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7049 to 6637. [2022-11-20 10:58:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 3593 states have (on average 1.2983579181742277) internal successors, (4665), 3733 states have internal predecessors, (4665), 2803 states have call successors, (2803), 241 states have call predecessors, (2803), 240 states have return successors, (2802), 2732 states have call predecessors, (2802), 2802 states have call successors, (2802) [2022-11-20 10:58:09,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 10270 transitions. [2022-11-20 10:58:09,348 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 10270 transitions. Word has length 78 [2022-11-20 10:58:09,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:09,351 INFO L495 AbstractCegarLoop]: Abstraction has 6637 states and 10270 transitions. [2022-11-20 10:58:09,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-11-20 10:58:09,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 10270 transitions. [2022-11-20 10:58:09,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-20 10:58:09,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:09,366 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-20 10:58:09,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:58:09,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:58:09,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:09,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1171443714, now seen corresponding path program 1 times [2022-11-20 10:58:09,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:09,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089422637] [2022-11-20 10:58:09,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:09,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 10:58:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-20 10:58:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-20 10:58:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 10:58:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 10:58:10,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 10:58:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-20 10:58:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-20 10:58:10,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 10:58:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:10,658 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-20 10:58:10,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:10,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089422637] [2022-11-20 10:58:10,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089422637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:10,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:10,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:58:10,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667578670] [2022-11-20 10:58:10,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:10,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:58:10,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:10,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:58:10,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:58:10,663 INFO L87 Difference]: Start difference. First operand 6637 states and 10270 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:58:20,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:21,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:22,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:23,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:27,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 10:58:51,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:51,788 INFO L93 Difference]: Finished difference Result 20658 states and 32309 transitions. [2022-11-20 10:58:51,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 10:58:51,789 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2022-11-20 10:58:51,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:51,910 INFO L225 Difference]: With dead ends: 20658 [2022-11-20 10:58:51,910 INFO L226 Difference]: Without dead ends: 14038 [2022-11-20 10:58:51,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-11-20 10:58:51,966 INFO L413 NwaCegarLoop]: 3779 mSDtfsCounter, 7324 mSDsluCounter, 10893 mSDsCounter, 0 mSdLazyCounter, 18442 mSolverCounterSat, 10404 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7807 SdHoareTripleChecker+Valid, 14672 SdHoareTripleChecker+Invalid, 28847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10404 IncrementalHoareTripleChecker+Valid, 18442 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:51,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7807 Valid, 14672 Invalid, 28847 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10404 Valid, 18442 Invalid, 1 Unknown, 0 Unchecked, 39.4s Time] [2022-11-20 10:58:51,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14038 states. [2022-11-20 10:58:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14038 to 13372. [2022-11-20 10:58:53,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13372 states, 7257 states have (on average 1.2997106242248864) internal successors, (9432), 7557 states have internal predecessors, (9432), 5616 states have call successors, (5616), 481 states have call predecessors, (5616), 498 states have return successors, (5782), 5487 states have call predecessors, (5782), 5615 states have call successors, (5782) [2022-11-20 10:58:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13372 states to 13372 states and 20830 transitions. [2022-11-20 10:58:53,386 INFO L78 Accepts]: Start accepts. Automaton has 13372 states and 20830 transitions. Word has length 81 [2022-11-20 10:58:53,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:53,389 INFO L495 AbstractCegarLoop]: Abstraction has 13372 states and 20830 transitions. [2022-11-20 10:58:53,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-20 10:58:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 13372 states and 20830 transitions. [2022-11-20 10:58:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 10:58:53,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:53,418 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:53,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:58:53,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:58:53,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:53,420 INFO L85 PathProgramCache]: Analyzing trace with hash -252325832, now seen corresponding path program 1 times [2022-11-20 10:58:53,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:53,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293837561] [2022-11-20 10:58:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:53,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:53,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:53,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293837561] [2022-11-20 10:58:53,748 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 10:58:53,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715811633] [2022-11-20 10:58:53,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:53,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:53,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:53,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:58:53,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:58:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:55,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 4762 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:58:55,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:55,699 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-20 10:58:55,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:58:55,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715811633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:55,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:55,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:58:55,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413191257] [2022-11-20 10:58:55,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:55,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:58:55,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:55,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:58:55,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:55,702 INFO L87 Difference]: Start difference. First operand 13372 states and 20830 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:58:56,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:58:56,743 INFO L93 Difference]: Finished difference Result 26726 states and 41895 transitions. [2022-11-20 10:58:56,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:58:56,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 156 [2022-11-20 10:58:56,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:58:56,860 INFO L225 Difference]: With dead ends: 26726 [2022-11-20 10:58:56,861 INFO L226 Difference]: Without dead ends: 13376 [2022-11-20 10:58:56,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:58:56,968 INFO L413 NwaCegarLoop]: 5174 mSDtfsCounter, 0 mSDsluCounter, 5170 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10344 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 10:58:56,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10344 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:58:56,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13376 states. [2022-11-20 10:58:58,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13376 to 13376. [2022-11-20 10:58:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13376 states, 7261 states have (on average 1.2995455171463985) internal successors, (9436), 7561 states have internal predecessors, (9436), 5616 states have call successors, (5616), 481 states have call predecessors, (5616), 498 states have return successors, (5782), 5487 states have call predecessors, (5782), 5615 states have call successors, (5782) [2022-11-20 10:58:58,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13376 states to 13376 states and 20834 transitions. [2022-11-20 10:58:58,475 INFO L78 Accepts]: Start accepts. Automaton has 13376 states and 20834 transitions. Word has length 156 [2022-11-20 10:58:58,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:58:58,477 INFO L495 AbstractCegarLoop]: Abstraction has 13376 states and 20834 transitions. [2022-11-20 10:58:58,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:58:58,478 INFO L276 IsEmpty]: Start isEmpty. Operand 13376 states and 20834 transitions. [2022-11-20 10:58:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 10:58:58,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:58:58,498 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:58,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-20 10:58:58,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:58,713 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:58:58,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:58,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1856707417, now seen corresponding path program 1 times [2022-11-20 10:58:58,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:58,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470679426] [2022-11-20 10:58:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:58,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:59,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:59,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470679426] [2022-11-20 10:58:59,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 10:58:59,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804801247] [2022-11-20 10:58:59,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:59,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:59,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:59,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:58:59,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:59:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:00,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 4762 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:59:00,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:00,636 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-20 10:59:00,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:59:00,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804801247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:00,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:00,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:59:00,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308790551] [2022-11-20 10:59:00,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:00,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:59:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:00,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:59:00,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:59:00,648 INFO L87 Difference]: Start difference. First operand 13376 states and 20834 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:59:01,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:01,282 INFO L93 Difference]: Finished difference Result 26734 states and 41645 transitions. [2022-11-20 10:59:01,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:59:01,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 156 [2022-11-20 10:59:01,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:59:01,515 INFO L225 Difference]: With dead ends: 26734 [2022-11-20 10:59:01,515 INFO L226 Difference]: Without dead ends: 13380 [2022-11-20 10:59:01,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:59:01,584 INFO L413 NwaCegarLoop]: 5174 mSDtfsCounter, 0 mSDsluCounter, 5169 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10343 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 [2022-11-20 10:59:01,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10343 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 10:59:01,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13380 states. [2022-11-20 10:59:02,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13380 to 13380. [2022-11-20 10:59:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13380 states, 7265 states have (on average 1.2993805918788712) internal successors, (9440), 7565 states have internal predecessors, (9440), 5616 states have call successors, (5616), 481 states have call predecessors, (5616), 498 states have return successors, (5782), 5487 states have call predecessors, (5782), 5615 states have call successors, (5782) [2022-11-20 10:59:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13380 states to 13380 states and 20838 transitions. [2022-11-20 10:59:02,868 INFO L78 Accepts]: Start accepts. Automaton has 13380 states and 20838 transitions. Word has length 156 [2022-11-20 10:59:02,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:02,869 INFO L495 AbstractCegarLoop]: Abstraction has 13380 states and 20838 transitions. [2022-11-20 10:59:02,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:59:02,869 INFO L276 IsEmpty]: Start isEmpty. Operand 13380 states and 20838 transitions. [2022-11-20 10:59:02,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-20 10:59:02,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:02,885 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:02,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:03,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:59:03,101 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:59:03,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:03,101 INFO L85 PathProgramCache]: Analyzing trace with hash -2004530793, now seen corresponding path program 1 times [2022-11-20 10:59:03,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:03,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950982860] [2022-11-20 10:59:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:03,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:03,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:59:03,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950982860] [2022-11-20 10:59:03,462 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 10:59:03,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967304642] [2022-11-20 10:59:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:03,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:59:03,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:03,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:59:03,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:59:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:05,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 4767 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 10:59:05,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:05,105 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-11-20 10:59:05,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:59:05,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967304642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:05,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:05,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:59:05,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813157625] [2022-11-20 10:59:05,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:05,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:59:05,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:05,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:59:05,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:59:05,109 INFO L87 Difference]: Start difference. First operand 13380 states and 20838 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:59:06,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:06,317 INFO L93 Difference]: Finished difference Result 36596 states and 57279 transitions. [2022-11-20 10:59:06,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:59:06,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 156 [2022-11-20 10:59:06,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:59:06,524 INFO L225 Difference]: With dead ends: 36596 [2022-11-20 10:59:06,524 INFO L226 Difference]: Without dead ends: 23238 [2022-11-20 10:59:06,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:59:06,736 INFO L413 NwaCegarLoop]: 6284 mSDtfsCounter, 3848 mSDsluCounter, 5081 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3848 SdHoareTripleChecker+Valid, 11365 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 10:59:06,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3848 Valid, 11365 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 10:59:06,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23238 states. [2022-11-20 10:59:09,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23238 to 23226. [2022-11-20 10:59:09,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23226 states, 12257 states have (on average 1.3006445296565228) internal successors, (15942), 12743 states have internal predecessors, (15942), 10078 states have call successors, (10078), 857 states have call predecessors, (10078), 890 states have return successors, (10361), 9901 states have call predecessors, (10361), 10077 states have call successors, (10361) [2022-11-20 10:59:09,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23226 states to 23226 states and 36381 transitions. [2022-11-20 10:59:09,431 INFO L78 Accepts]: Start accepts. Automaton has 23226 states and 36381 transitions. Word has length 156 [2022-11-20 10:59:09,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:09,432 INFO L495 AbstractCegarLoop]: Abstraction has 23226 states and 36381 transitions. [2022-11-20 10:59:09,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-20 10:59:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 23226 states and 36381 transitions. [2022-11-20 10:59:09,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-20 10:59:09,457 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:09,457 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:09,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:09,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:59:09,674 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:59:09,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:09,676 INFO L85 PathProgramCache]: Analyzing trace with hash 113046796, now seen corresponding path program 1 times [2022-11-20 10:59:09,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:09,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052747592] [2022-11-20 10:59:09,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:09,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:09,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:59:09,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052747592] [2022-11-20 10:59:09,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 10:59:09,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025808283] [2022-11-20 10:59:09,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:09,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:59:09,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:09,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:59:10,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:59:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:11,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 5044 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:59:11,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:12,307 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-20 10:59:12,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:59:12,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025808283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:12,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:12,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:59:12,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077625164] [2022-11-20 10:59:12,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:12,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:59:12,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:12,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:59:12,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:59:12,310 INFO L87 Difference]: Start difference. First operand 23226 states and 36381 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 10:59:22,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:22,535 INFO L93 Difference]: Finished difference Result 69650 states and 109153 transitions. [2022-11-20 10:59:22,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:59:22,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 175 [2022-11-20 10:59:22,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:59:23,096 INFO L225 Difference]: With dead ends: 69650 [2022-11-20 10:59:23,097 INFO L226 Difference]: Without dead ends: 46446 [2022-11-20 10:59:23,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:59:23,262 INFO L413 NwaCegarLoop]: 8295 mSDtfsCounter, 5088 mSDsluCounter, 12929 mSDsCounter, 0 mSdLazyCounter, 5696 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5092 SdHoareTripleChecker+Valid, 21224 SdHoareTripleChecker+Invalid, 5711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 5696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-20 10:59:23,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5092 Valid, 21224 Invalid, 5711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 5696 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-20 10:59:23,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46446 states. [2022-11-20 10:59:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46446 to 46406. [2022-11-20 10:59:27,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46406 states, 24471 states have (on average 1.3011728168035634) internal successors, (31841), 25483 states have internal predecessors, (31841), 20146 states have call successors, (20146), 1713 states have call predecessors, (20146), 1788 states have return successors, (20761), 19761 states have call predecessors, (20761), 20145 states have call successors, (20761) [2022-11-20 10:59:27,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46406 states to 46406 states and 72748 transitions. [2022-11-20 10:59:27,601 INFO L78 Accepts]: Start accepts. Automaton has 46406 states and 72748 transitions. Word has length 175 [2022-11-20 10:59:27,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:27,602 INFO L495 AbstractCegarLoop]: Abstraction has 46406 states and 72748 transitions. [2022-11-20 10:59:27,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 10:59:27,602 INFO L276 IsEmpty]: Start isEmpty. Operand 46406 states and 72748 transitions. [2022-11-20 10:59:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-20 10:59:27,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:27,634 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:27,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:27,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-20 10:59:27,857 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:59:27,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:27,857 INFO L85 PathProgramCache]: Analyzing trace with hash -196860019, now seen corresponding path program 1 times [2022-11-20 10:59:27,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:27,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938070552] [2022-11-20 10:59:27,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:27,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:28,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:59:28,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938070552] [2022-11-20 10:59:28,105 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 10:59:28,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842237876] [2022-11-20 10:59:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:28,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:59:28,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:28,107 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:59:28,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:59:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:29,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 5050 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:59:29,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:30,313 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-20 10:59:30,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:59:30,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842237876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:30,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:30,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:59:30,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312146481] [2022-11-20 10:59:30,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:30,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:59:30,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:30,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:59:30,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:59:30,316 INFO L87 Difference]: Start difference. First operand 46406 states and 72748 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 10:59:42,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 10:59:42,743 INFO L93 Difference]: Finished difference Result 139190 states and 218310 transitions. [2022-11-20 10:59:42,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:59:42,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 178 [2022-11-20 10:59:42,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 10:59:43,804 INFO L225 Difference]: With dead ends: 139190 [2022-11-20 10:59:43,804 INFO L226 Difference]: Without dead ends: 92806 [2022-11-20 10:59:44,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:59:44,078 INFO L413 NwaCegarLoop]: 6603 mSDtfsCounter, 5065 mSDsluCounter, 12718 mSDsCounter, 0 mSdLazyCounter, 5690 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5069 SdHoareTripleChecker+Valid, 19321 SdHoareTripleChecker+Invalid, 5706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 5690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-20 10:59:44,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5069 Valid, 19321 Invalid, 5706 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 5690 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-11-20 10:59:44,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92806 states. [2022-11-20 10:59:50,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92806 to 92798. [2022-11-20 10:59:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92798 states, 48931 states have (on average 1.3012405223682328) internal successors, (63671), 50963 states have internal predecessors, (63671), 40282 states have call successors, (40282), 3425 states have call predecessors, (40282), 3584 states have return successors, (41601), 39513 states have call predecessors, (41601), 40281 states have call successors, (41601) [2022-11-20 10:59:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92798 states to 92798 states and 145554 transitions. [2022-11-20 10:59:51,833 INFO L78 Accepts]: Start accepts. Automaton has 92798 states and 145554 transitions. Word has length 178 [2022-11-20 10:59:51,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 10:59:51,834 INFO L495 AbstractCegarLoop]: Abstraction has 92798 states and 145554 transitions. [2022-11-20 10:59:51,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-20 10:59:51,835 INFO L276 IsEmpty]: Start isEmpty. Operand 92798 states and 145554 transitions. [2022-11-20 10:59:51,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-20 10:59:51,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:59:51,863 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:59:51,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-20 10:59:52,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:59:52,080 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:59:52,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:59:52,081 INFO L85 PathProgramCache]: Analyzing trace with hash 152133350, now seen corresponding path program 1 times [2022-11-20 10:59:52,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:59:52,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187648016] [2022-11-20 10:59:52,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:52,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:59:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:52,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:59:52,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187648016] [2022-11-20 10:59:52,321 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 10:59:52,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278785958] [2022-11-20 10:59:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:59:52,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:59:52,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:59:52,323 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:59:52,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95862c2a-256b-4977-89d1-d3a515bbf6e2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-20 10:59:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:59:54,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 5046 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 10:59:54,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:59:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-20 10:59:54,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 10:59:54,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278785958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:59:54,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:59:54,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 10:59:54,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496965309] [2022-11-20 10:59:54,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:59:54,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:59:54,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:59:54,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:59:54,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:59:54,687 INFO L87 Difference]: Start difference. First operand 92798 states and 145554 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20)