./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a --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 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- 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-b5237d8 [2022-11-21 16:59:12,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:59:12,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:59:12,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:59:12,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:59:12,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:59:12,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:59:12,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:59:12,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:59:12,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:59:12,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:59:12,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:59:12,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:59:12,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:59:12,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:59:12,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:59:12,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:59:12,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:59:12,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:59:12,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:59:12,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:59:12,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:59:12,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:59:12,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:59:12,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:59:12,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:59:12,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:59:12,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:59:12,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:59:12,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:59:12,361 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:59:12,362 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:59:12,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:59:12,364 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:59:12,365 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:59:12,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:59:12,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:59:12,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:59:12,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:59:12,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:59:12,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:59:12,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 16:59:12,395 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:59:12,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:59:12,396 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:59:12,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:59:12,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:59:12,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:59:12,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:59:12,399 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:59:12,399 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:59:12,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:59:12,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:59:12,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:59:12,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:59:12,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:59:12,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:59:12,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:59:12,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:59:12,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:59:12,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:59:12,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:59:12,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:59:12,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:59:12,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:59:12,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:59:12,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:59:12,404 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:59:12,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:59:12,404 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:59:12,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:59:12,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:59:12,405 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_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2022-11-21 16:59:12,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:59:12,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:59:12,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:59:12,712 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:59:12,713 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:59:12,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-11-21 16:59:15,962 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:59:16,645 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:59:16,646 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-11-21 16:59:16,707 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/data/6c28aba2d/8f54d6babcc44f27be55307c6f00cd9a/FLAGb1d59771c [2022-11-21 16:59:16,732 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/data/6c28aba2d/8f54d6babcc44f27be55307c6f00cd9a [2022-11-21 16:59:16,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:59:16,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:59:16,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:59:16,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:59:16,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:59:16,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:59:16" (1/1) ... [2022-11-21 16:59:16,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139efc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:16, skipping insertion in model container [2022-11-21 16:59:16,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:59:16" (1/1) ... [2022-11-21 16:59:16,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:59:16,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:59:18,348 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_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2022-11-21 16:59:19,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:59:19,816 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:59:19,957 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_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2022-11-21 16:59:20,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:59:20,631 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:59:20,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20 WrapperNode [2022-11-21 16:59:20,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:59:20,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:59:20,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:59:20,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:59:20,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:20,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:20,960 INFO L138 Inliner]: procedures = 371, calls = 3025, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6265 [2022-11-21 16:59:20,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:59:20,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:59:20,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:59:20,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:59:20,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:20,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:21,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:21,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:21,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:21,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:21,304 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:21,327 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:21,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:59:21,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:59:21,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:59:21,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:59:21,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (1/1) ... [2022-11-21 16:59:21,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:59:21,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:59:21,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:59:21,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3877a35-8d53-423e-8a6f-4aedbfd9c44e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:59:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-11-21 16:59:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-11-21 16:59:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-11-21 16:59:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-11-21 16:59:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-11-21 16:59:21,446 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-11-21 16:59:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-11-21 16:59:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-11-21 16:59:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-21 16:59:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-11-21 16:59:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2022-11-21 16:59:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2022-11-21 16:59:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-11-21 16:59:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-11-21 16:59:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-21 16:59:21,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-21 16:59:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-11-21 16:59:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-11-21 16:59:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-11-21 16:59:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-11-21 16:59:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-11-21 16:59:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-11-21 16:59:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2022-11-21 16:59:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2022-11-21 16:59:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-21 16:59:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-21 16:59:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-11-21 16:59:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-11-21 16:59:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-21 16:59:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-21 16:59:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-21 16:59:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-21 16:59:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-11-21 16:59:21,452 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-11-21 16:59:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 16:59:21,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 16:59:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-21 16:59:21,454 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-21 16:59:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-21 16:59:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-21 16:59:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-11-21 16:59:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-11-21 16:59:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2022-11-21 16:59:21,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2022-11-21 16:59:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-11-21 16:59:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-11-21 16:59:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-11-21 16:59:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-11-21 16:59:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-21 16:59:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-21 16:59:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 16:59:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 16:59:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-11-21 16:59:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-11-21 16:59:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-11-21 16:59:21,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-11-21 16:59:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-11-21 16:59:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-11-21 16:59:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-21 16:59:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-21 16:59:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-11-21 16:59:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-11-21 16:59:21,461 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-21 16:59:21,461 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-21 16:59:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-21 16:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-21 16:59:21,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-11-21 16:59:21,462 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-11-21 16:59:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-11-21 16:59:21,463 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-11-21 16:59:21,463 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-11-21 16:59:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-11-21 16:59:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-11-21 16:59:21,464 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-11-21 16:59:21,464 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2022-11-21 16:59:21,465 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2022-11-21 16:59:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2022-11-21 16:59:21,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2022-11-21 16:59:21,465 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-11-21 16:59:21,465 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-11-21 16:59:21,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-21 16:59:21,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-21 16:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 16:59:21,467 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 16:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:59:21,467 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-21 16:59:21,468 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-21 16:59:21,468 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-11-21 16:59:21,468 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-11-21 16:59:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-11-21 16:59:21,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-11-21 16:59:21,469 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-11-21 16:59:21,469 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-11-21 16:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-11-21 16:59:21,470 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-11-21 16:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-21 16:59:21,470 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-21 16:59:21,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:59:21,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-21 16:59:21,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-21 16:59:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-21 16:59:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-11-21 16:59:21,472 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-11-21 16:59:21,472 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-11-21 16:59:21,472 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-11-21 16:59:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-21 16:59:21,473 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-21 16:59:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-21 16:59:21,473 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-21 16:59:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-11-21 16:59:21,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-11-21 16:59:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-11-21 16:59:21,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-11-21 16:59:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:59:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 16:59:21,475 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-11-21 16:59:21,475 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-11-21 16:59:21,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-21 16:59:21,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-21 16:59:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-21 16:59:21,480 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-21 16:59:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-21 16:59:21,480 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-21 16:59:21,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-11-21 16:59:21,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-11-21 16:59:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-11-21 16:59:21,483 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-11-21 16:59:21,483 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-21 16:59:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-21 16:59:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-21 16:59:21,489 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-21 16:59:21,489 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-21 16:59:21,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-21 16:59:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-11-21 16:59:21,490 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-11-21 16:59:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-11-21 16:59:21,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-11-21 16:59:21,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-11-21 16:59:21,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-11-21 16:59:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-21 16:59:21,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-21 16:59:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-11-21 16:59:21,491 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-11-21 16:59:21,491 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2022-11-21 16:59:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2022-11-21 16:59:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-21 16:59:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-21 16:59:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-11-21 16:59:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-11-21 16:59:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 16:59:21,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 16:59:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-21 16:59:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-21 16:59:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-11-21 16:59:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-11-21 16:59:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-11-21 16:59:21,493 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-11-21 16:59:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-11-21 16:59:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-11-21 16:59:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-11-21 16:59:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-11-21 16:59:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:59:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-11-21 16:59:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-11-21 16:59:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-11-21 16:59:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-11-21 16:59:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2022-11-21 16:59:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2022-11-21 16:59:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-21 16:59:21,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-21 16:59:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-11-21 16:59:21,496 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-11-21 16:59:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-11-21 16:59:21,496 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-11-21 16:59:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-21 16:59:21,496 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-21 16:59:21,496 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-21 16:59:21,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-21 16:59:21,497 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-21 16:59:21,497 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-21 16:59:21,497 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-11-21 16:59:21,497 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-11-21 16:59:21,497 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 16:59:21,497 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 16:59:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2022-11-21 16:59:21,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2022-11-21 16:59:21,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2022-11-21 16:59:21,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2022-11-21 16:59:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-21 16:59:21,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-11-21 16:59:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:59:21,499 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2022-11-21 16:59:21,501 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2022-11-21 16:59:21,501 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-11-21 16:59:21,501 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-11-21 16:59:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-11-21 16:59:21,502 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-11-21 16:59:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 16:59:21,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 16:59:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-11-21 16:59:21,502 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-11-21 16:59:21,502 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-11-21 16:59:21,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-11-21 16:59:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2022-11-21 16:59:21,503 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2022-11-21 16:59:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:59:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-11-21 16:59:21,503 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-11-21 16:59:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:59:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-21 16:59:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-21 16:59:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:59:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-21 16:59:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2022-11-21 16:59:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2022-11-21 16:59:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2022-11-21 16:59:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2022-11-21 16:59:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:59:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 16:59:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-21 16:59:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-21 16:59:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-11-21 16:59:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-11-21 16:59:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-21 16:59:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-21 16:59:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-21 16:59:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-21 16:59:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2022-11-21 16:59:21,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2022-11-21 16:59:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-11-21 16:59:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-11-21 16:59:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-11-21 16:59:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-11-21 16:59:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-11-21 16:59:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-11-21 16:59:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-21 16:59:21,508 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-21 16:59:21,508 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-21 16:59:21,508 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-21 16:59:21,508 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-11-21 16:59:21,508 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-11-21 16:59:21,508 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-21 16:59:21,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-21 16:59:21,509 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-11-21 16:59:21,509 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-11-21 16:59:21,510 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-21 16:59:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-21 16:59:21,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-21 16:59:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-21 16:59:21,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:59:21,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:59:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:59:21,515 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-21 16:59:21,515 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-21 16:59:21,515 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-11-21 16:59:21,516 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-11-21 16:59:21,517 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-21 16:59:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-21 16:59:22,711 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:59:22,719 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:59:23,291 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-21 16:59:24,335 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2022-11-21 16:59:33,719 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:59:33,751 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:59:33,751 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:59:33,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:59:33 BoogieIcfgContainer [2022-11-21 16:59:33,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:59:33,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:59:33,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:59:33,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:59:33,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:59:16" (1/3) ... [2022-11-21 16:59:33,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b02409f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:59:33, skipping insertion in model container [2022-11-21 16:59:33,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:59:20" (2/3) ... [2022-11-21 16:59:33,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b02409f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:59:33, skipping insertion in model container [2022-11-21 16:59:33,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:59:33" (3/3) ... [2022-11-21 16:59:33,771 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-11-21 16:59:33,792 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:59:33,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:59:33,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:59:33,937 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;@16384e8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:59:33,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:59:33,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 2086 states, 1499 states have (on average 1.3382254836557705) internal successors, (2006), 1540 states have internal predecessors, (2006), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) [2022-11-21 16:59:33,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-21 16:59:33,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:33,976 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:33,976 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:33,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:33,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1626366751, now seen corresponding path program 1 times [2022-11-21 16:59:33,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:33,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284101840] [2022-11-21 16:59:33,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:33,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:59:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:59:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:59:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:59:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:59:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:59:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:59:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:35,227 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-21 16:59:35,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:35,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284101840] [2022-11-21 16:59:35,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284101840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:35,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:35,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:59:35,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142690739] [2022-11-21 16:59:35,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:35,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:59:35,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:35,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:59:35,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:59:35,297 INFO L87 Difference]: Start difference. First operand has 2086 states, 1499 states have (on average 1.3382254836557705) internal successors, (2006), 1540 states have internal predecessors, (2006), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-21 16:59:40,280 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 [] [2022-11-21 16:59:49,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:59:49,076 INFO L93 Difference]: Finished difference Result 6630 states and 9759 transitions. [2022-11-21 16:59:49,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:59:49,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2022-11-21 16:59:49,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:59:49,153 INFO L225 Difference]: With dead ends: 6630 [2022-11-21 16:59:49,153 INFO L226 Difference]: Without dead ends: 4512 [2022-11-21 16:59:49,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:59:49,184 INFO L413 NwaCegarLoop]: 2793 mSDtfsCounter, 4053 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 2355 mSolverCounterSat, 1349 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4372 SdHoareTripleChecker+Valid, 6412 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1349 IncrementalHoareTripleChecker+Valid, 2355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:59:49,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4372 Valid, 6412 Invalid, 3705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1349 Valid, 2355 Invalid, 1 Unknown, 0 Unchecked, 13.0s Time] [2022-11-21 16:59:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2022-11-21 16:59:49,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4010. [2022-11-21 16:59:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 2907 states have (on average 1.3309253525971791) internal successors, (3869), 2950 states have internal predecessors, (3869), 866 states have call successors, (866), 237 states have call predecessors, (866), 236 states have return successors, (859), 837 states have call predecessors, (859), 859 states have call successors, (859) [2022-11-21 16:59:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 5594 transitions. [2022-11-21 16:59:49,585 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 5594 transitions. Word has length 69 [2022-11-21 16:59:49,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:59:49,586 INFO L495 AbstractCegarLoop]: Abstraction has 4010 states and 5594 transitions. [2022-11-21 16:59:49,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-21 16:59:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 5594 transitions. [2022-11-21 16:59:49,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-21 16:59:49,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:59:49,605 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:59:49,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:59:49,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:59:49,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:59:49,607 INFO L85 PathProgramCache]: Analyzing trace with hash 135008033, now seen corresponding path program 1 times [2022-11-21 16:59:49,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:59:49,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810007951] [2022-11-21 16:59:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:59:49,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:59:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 16:59:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 16:59:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 16:59:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 16:59:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 16:59:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 16:59:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 16:59:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 16:59:50,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 16:59:50,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-21 16:59:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:59:50,300 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-21 16:59:50,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:59:50,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810007951] [2022-11-21 16:59:50,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810007951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:59:50,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:59:50,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:59:50,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381473805] [2022-11-21 16:59:50,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:59:50,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:59:50,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:59:50,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:59:50,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:59:50,310 INFO L87 Difference]: Start difference. First operand 4010 states and 5594 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 16:59:54,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:00:03,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:03,857 INFO L93 Difference]: Finished difference Result 12624 states and 17814 transitions. [2022-11-21 17:00:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:00:03,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2022-11-21 17:00:03,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:03,931 INFO L225 Difference]: With dead ends: 12624 [2022-11-21 17:00:03,932 INFO L226 Difference]: Without dead ends: 8635 [2022-11-21 17:00:03,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:00:03,961 INFO L413 NwaCegarLoop]: 2748 mSDtfsCounter, 3845 mSDsluCounter, 3491 mSDsCounter, 0 mSdLazyCounter, 2434 mSolverCounterSat, 1300 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4175 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 3735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1300 IncrementalHoareTripleChecker+Valid, 2434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:03,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4175 Valid, 6239 Invalid, 3735 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1300 Valid, 2434 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2022-11-21 17:00:03,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8635 states. [2022-11-21 17:00:04,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8635 to 7594. [2022-11-21 17:00:04,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7594 states, 5508 states have (on average 1.3253449527959331) internal successors, (7300), 5589 states have internal predecessors, (7300), 1627 states have call successors, (1627), 459 states have call predecessors, (1627), 458 states have return successors, (1620), 1575 states have call predecessors, (1620), 1620 states have call successors, (1620) [2022-11-21 17:00:04,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7594 states to 7594 states and 10547 transitions. [2022-11-21 17:00:04,435 INFO L78 Accepts]: Start accepts. Automaton has 7594 states and 10547 transitions. Word has length 89 [2022-11-21 17:00:04,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:04,437 INFO L495 AbstractCegarLoop]: Abstraction has 7594 states and 10547 transitions. [2022-11-21 17:00:04,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 17:00:04,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7594 states and 10547 transitions. [2022-11-21 17:00:04,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-21 17:00:04,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:04,444 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:04,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:00:04,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:04,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1543835901, now seen corresponding path program 1 times [2022-11-21 17:00:04,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:04,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927906353] [2022-11-21 17:00:04,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:00:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:00:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:00:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:00:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:00:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:00:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:00:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:00:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:04,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 17:00:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:05,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-21 17:00:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:05,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:00:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:05,032 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-11-21 17:00:05,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927906353] [2022-11-21 17:00:05,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927906353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:05,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:05,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:00:05,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979157162] [2022-11-21 17:00:05,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:05,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:00:05,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:05,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:00:05,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:00:05,040 INFO L87 Difference]: Start difference. First operand 7594 states and 10547 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:00:09,980 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 [] [2022-11-21 17:00:18,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 17:00:27,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:27,659 INFO L93 Difference]: Finished difference Result 29632 states and 42837 transitions. [2022-11-21 17:00:27,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:00:27,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2022-11-21 17:00:27,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:27,848 INFO L225 Difference]: With dead ends: 29632 [2022-11-21 17:00:27,848 INFO L226 Difference]: Without dead ends: 22059 [2022-11-21 17:00:27,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:00:27,902 INFO L413 NwaCegarLoop]: 2532 mSDtfsCounter, 7797 mSDsluCounter, 4509 mSDsCounter, 0 mSdLazyCounter, 4950 mSolverCounterSat, 3966 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8249 SdHoareTripleChecker+Valid, 7041 SdHoareTripleChecker+Invalid, 8918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3966 IncrementalHoareTripleChecker+Valid, 4950 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:27,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8249 Valid, 7041 Invalid, 8918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3966 Valid, 4950 Invalid, 2 Unknown, 0 Unchecked, 21.2s Time] [2022-11-21 17:00:27,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22059 states. [2022-11-21 17:00:29,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22059 to 15018. [2022-11-21 17:00:29,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15018 states, 10898 states have (on average 1.3250137639933932) internal successors, (14440), 11055 states have internal predecessors, (14440), 3207 states have call successors, (3207), 913 states have call predecessors, (3207), 912 states have return successors, (3200), 3109 states have call predecessors, (3200), 3200 states have call successors, (3200) [2022-11-21 17:00:29,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15018 states to 15018 states and 20847 transitions. [2022-11-21 17:00:29,300 INFO L78 Accepts]: Start accepts. Automaton has 15018 states and 20847 transitions. Word has length 97 [2022-11-21 17:00:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:29,300 INFO L495 AbstractCegarLoop]: Abstraction has 15018 states and 20847 transitions. [2022-11-21 17:00:29,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:00:29,302 INFO L276 IsEmpty]: Start isEmpty. Operand 15018 states and 20847 transitions. [2022-11-21 17:00:29,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-21 17:00:29,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:29,307 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:29,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:00:29,308 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:29,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:29,309 INFO L85 PathProgramCache]: Analyzing trace with hash 938900729, now seen corresponding path program 1 times [2022-11-21 17:00:29,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:29,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57200465] [2022-11-21 17:00:29,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:29,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:00:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:00:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:00:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:00:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:00:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:00:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:00:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:00:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-21 17:00:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:00:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:29,741 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-21 17:00:29,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:29,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57200465] [2022-11-21 17:00:29,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57200465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:29,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:29,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:00:29,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767877940] [2022-11-21 17:00:29,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:29,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:00:29,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:29,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:00:29,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:00:29,746 INFO L87 Difference]: Start difference. First operand 15018 states and 20847 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 17:00:33,063 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 [] [2022-11-21 17:00:44,217 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 [] [2022-11-21 17:00:51,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:00:51,337 INFO L93 Difference]: Finished difference Result 58244 states and 84989 transitions. [2022-11-21 17:00:51,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:00:51,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2022-11-21 17:00:51,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:00:51,648 INFO L225 Difference]: With dead ends: 58244 [2022-11-21 17:00:51,648 INFO L226 Difference]: Without dead ends: 43247 [2022-11-21 17:00:51,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:00:51,743 INFO L413 NwaCegarLoop]: 2407 mSDtfsCounter, 7666 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 5017 mSolverCounterSat, 3942 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8098 SdHoareTripleChecker+Valid, 6959 SdHoareTripleChecker+Invalid, 8961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3942 IncrementalHoareTripleChecker+Valid, 5017 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:00:51,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8098 Valid, 6959 Invalid, 8961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3942 Valid, 5017 Invalid, 2 Unknown, 0 Unchecked, 19.4s Time] [2022-11-21 17:00:51,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43247 states. [2022-11-21 17:00:54,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43247 to 38010. [2022-11-21 17:00:54,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38010 states, 27614 states have (on average 1.3135366118635474) internal successors, (36272), 27826 states have internal predecessors, (36272), 7991 states have call successors, (7991), 1797 states have call predecessors, (7991), 2404 states have return successors, (10352), 8534 states have call predecessors, (10352), 7984 states have call successors, (10352) [2022-11-21 17:00:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38010 states to 38010 states and 54615 transitions. [2022-11-21 17:00:54,979 INFO L78 Accepts]: Start accepts. Automaton has 38010 states and 54615 transitions. Word has length 93 [2022-11-21 17:00:54,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:00:54,980 INFO L495 AbstractCegarLoop]: Abstraction has 38010 states and 54615 transitions. [2022-11-21 17:00:54,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-21 17:00:54,980 INFO L276 IsEmpty]: Start isEmpty. Operand 38010 states and 54615 transitions. [2022-11-21 17:00:54,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-21 17:00:54,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:00:54,991 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:00:54,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:00:54,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:00:54,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:00:54,992 INFO L85 PathProgramCache]: Analyzing trace with hash 164125627, now seen corresponding path program 1 times [2022-11-21 17:00:54,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:00:54,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512395455] [2022-11-21 17:00:54,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:00:54,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:00:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:00:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:55,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:00:55,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:55,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:00:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:55,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:00:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:55,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:00:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:55,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:00:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:56,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:00:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:56,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:00:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:56,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 17:00:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:56,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 17:00:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:56,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:00:56,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:00:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-21 17:00:56,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:00:56,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512395455] [2022-11-21 17:00:56,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512395455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:00:56,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:00:56,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:00:56,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52804407] [2022-11-21 17:00:56,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:00:56,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:00:56,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:00:56,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:00:56,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:00:56,298 INFO L87 Difference]: Start difference. First operand 38010 states and 54615 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:01:10,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:01:10,857 INFO L93 Difference]: Finished difference Result 128267 states and 204048 transitions. [2022-11-21 17:01:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:01:10,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2022-11-21 17:01:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:01:11,945 INFO L225 Difference]: With dead ends: 128267 [2022-11-21 17:01:11,945 INFO L226 Difference]: Without dead ends: 90278 [2022-11-21 17:01:12,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:01:12,304 INFO L413 NwaCegarLoop]: 2929 mSDtfsCounter, 5971 mSDsluCounter, 3953 mSDsCounter, 0 mSdLazyCounter, 2489 mSolverCounterSat, 2749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6280 SdHoareTripleChecker+Valid, 6882 SdHoareTripleChecker+Invalid, 5238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2749 IncrementalHoareTripleChecker+Valid, 2489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:01:12,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6280 Valid, 6882 Invalid, 5238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2749 Valid, 2489 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-11-21 17:01:12,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90278 states. [2022-11-21 17:01:18,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90278 to 81930. [2022-11-21 17:01:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81930 states, 59682 states have (on average 1.3085519922254616) internal successors, (78097), 60028 states have internal predecessors, (78097), 16759 states have call successors, (16759), 3593 states have call predecessors, (16759), 5488 states have return successors, (29268), 18636 states have call predecessors, (29268), 16752 states have call successors, (29268) [2022-11-21 17:01:19,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81930 states to 81930 states and 124124 transitions. [2022-11-21 17:01:19,684 INFO L78 Accepts]: Start accepts. Automaton has 81930 states and 124124 transitions. Word has length 92 [2022-11-21 17:01:19,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:01:19,685 INFO L495 AbstractCegarLoop]: Abstraction has 81930 states and 124124 transitions. [2022-11-21 17:01:19,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:01:19,686 INFO L276 IsEmpty]: Start isEmpty. Operand 81930 states and 124124 transitions. [2022-11-21 17:01:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-21 17:01:19,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:01:19,689 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:01:19,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:01:19,690 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:01:19,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:01:19,691 INFO L85 PathProgramCache]: Analyzing trace with hash 791505385, now seen corresponding path program 1 times [2022-11-21 17:01:19,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:01:19,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232191577] [2022-11-21 17:01:19,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:01:19,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:01:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:20,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:01:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:20,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:01:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:20,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:01:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:20,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:01:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:01:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:01:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:20,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:01:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:20,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:01:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:21,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 17:01:21,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:21,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 17:01:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:01:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:01:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-21 17:01:21,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:01:21,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232191577] [2022-11-21 17:01:21,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232191577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:01:21,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:01:21,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:01:21,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021696097] [2022-11-21 17:01:21,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:01:21,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:01:21,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:01:21,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:01:21,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:01:21,054 INFO L87 Difference]: Start difference. First operand 81930 states and 124124 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:01:24,504 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 [] [2022-11-21 17:01:47,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:01:47,052 INFO L93 Difference]: Finished difference Result 262259 states and 448007 transitions. [2022-11-21 17:01:47,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:01:47,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2022-11-21 17:01:47,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:01:49,089 INFO L225 Difference]: With dead ends: 262259 [2022-11-21 17:01:49,089 INFO L226 Difference]: Without dead ends: 180350 [2022-11-21 17:01:50,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:01:50,117 INFO L413 NwaCegarLoop]: 3022 mSDtfsCounter, 4485 mSDsluCounter, 5474 mSDsCounter, 0 mSdLazyCounter, 3613 mSolverCounterSat, 1498 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 8496 SdHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 3613 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:01:50,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4801 Valid, 8496 Invalid, 5112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1498 Valid, 3613 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-21 17:01:50,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180350 states. [2022-11-21 17:02:02,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180350 to 165707. [2022-11-21 17:02:02,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165707 states, 120683 states have (on average 1.3054116984165127) internal successors, (157541), 121297 states have internal predecessors, (157541), 33751 states have call successors, (33751), 7185 states have call predecessors, (33751), 11272 states have return successors, (74860), 37880 states have call predecessors, (74860), 33744 states have call successors, (74860) [2022-11-21 17:02:04,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165707 states to 165707 states and 266152 transitions. [2022-11-21 17:02:04,875 INFO L78 Accepts]: Start accepts. Automaton has 165707 states and 266152 transitions. Word has length 93 [2022-11-21 17:02:04,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:02:04,876 INFO L495 AbstractCegarLoop]: Abstraction has 165707 states and 266152 transitions. [2022-11-21 17:02:04,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:02:04,877 INFO L276 IsEmpty]: Start isEmpty. Operand 165707 states and 266152 transitions. [2022-11-21 17:02:04,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-21 17:02:04,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:02:04,880 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:02:04,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:02:04,881 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:02:04,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:02:04,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1234553730, now seen corresponding path program 1 times [2022-11-21 17:02:04,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:02:04,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538620104] [2022-11-21 17:02:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:02:04,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:02:04,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:02:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:02:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:02:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-21 17:02:05,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-21 17:02:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-21 17:02:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 17:02:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-21 17:02:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-21 17:02:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-21 17:02:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 17:02:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:02:05,306 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-21 17:02:05,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:02:05,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538620104] [2022-11-21 17:02:05,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538620104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:02:05,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:02:05,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:02:05,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474109391] [2022-11-21 17:02:05,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:02:05,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:02:05,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:02:05,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:02:05,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:02:05,309 INFO L87 Difference]: Start difference. First operand 165707 states and 266152 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-21 17:02:08,451 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 [] [2022-11-21 17:02:28,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:02:28,400 INFO L93 Difference]: Finished difference Result 180348 states and 295716 transitions. [2022-11-21 17:02:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:02:28,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2022-11-21 17:02:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:02:30,105 INFO L225 Difference]: With dead ends: 180348 [2022-11-21 17:02:30,105 INFO L226 Difference]: Without dead ends: 180345 [2022-11-21 17:02:30,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:02:30,200 INFO L413 NwaCegarLoop]: 3011 mSDtfsCounter, 4488 mSDsluCounter, 5459 mSDsCounter, 0 mSdLazyCounter, 3592 mSolverCounterSat, 1496 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4805 SdHoareTripleChecker+Valid, 8470 SdHoareTripleChecker+Invalid, 5089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1496 IncrementalHoareTripleChecker+Valid, 3592 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:02:30,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4805 Valid, 8470 Invalid, 5089 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1496 Valid, 3592 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-21 17:02:30,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180345 states.