./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--vfio--pci--vfio-pci.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--vfio--pci--vfio-pci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa --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 879e6f4b2aed167489a665cf8f7fd15baaab5532f933532db7f913dd6f6b658a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:36:07,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:36:07,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:36:07,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:36:07,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:36:07,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:36:07,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:36:07,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:36:07,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:36:07,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:36:07,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:36:07,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:36:07,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:36:07,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:36:07,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:36:07,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:36:07,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:36:07,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:36:07,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:36:07,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:36:07,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:36:07,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:36:07,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:36:07,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:36:07,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:36:07,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:36:07,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:36:07,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:36:07,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:36:07,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:36:07,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:36:07,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:36:07,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:36:07,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:36:07,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:36:07,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:36:07,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:36:07,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:36:07,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:36:07,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:36:07,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:36:07,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 17:36:07,332 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:36:07,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:36:07,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:36:07,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:36:07,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:36:07,334 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:36:07,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:36:07,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:36:07,335 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:36:07,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:36:07,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:36:07,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:36:07,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:36:07,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:36:07,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:36:07,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:36:07,336 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:36:07,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:36:07,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:36:07,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:36:07,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:36:07,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:36:07,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:36:07,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:36:07,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:36:07,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:36:07,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:36:07,338 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:36:07,338 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:36:07,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:36:07,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:36:07,339 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_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 879e6f4b2aed167489a665cf8f7fd15baaab5532f933532db7f913dd6f6b658a [2021-12-06 17:36:07,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:36:07,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:36:07,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:36:07,539 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:36:07,539 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:36:07,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--vfio--pci--vfio-pci.ko-entry_point.cil.out.i [2021-12-06 17:36:07,587 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/data/0b8e281b4/d835d630990040c498d710e8be734fa1/FLAGa2e214610 [2021-12-06 17:36:08,405 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:36:08,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--vfio--pci--vfio-pci.ko-entry_point.cil.out.i [2021-12-06 17:36:08,497 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/data/0b8e281b4/d835d630990040c498d710e8be734fa1/FLAGa2e214610 [2021-12-06 17:36:08,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/data/0b8e281b4/d835d630990040c498d710e8be734fa1 [2021-12-06 17:36:08,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:36:08,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:36:08,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:36:08,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:36:08,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:36:08,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:08" (1/1) ... [2021-12-06 17:36:08,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4071e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:08, skipping insertion in model container [2021-12-06 17:36:08,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:36:08" (1/1) ... [2021-12-06 17:36:08,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:36:08,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:36:14,095 WARN L230 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_61ad069d-7899-4b79-92bf-64bc18803284/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--vfio--pci--vfio-pci.ko-entry_point.cil.out.i[2490260,2490273] [2021-12-06 17:36:14,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:36:14,632 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:36:16,404 WARN L230 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_61ad069d-7899-4b79-92bf-64bc18803284/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--vfio--pci--vfio-pci.ko-entry_point.cil.out.i[2490260,2490273] [2021-12-06 17:36:16,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:36:16,510 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:36:16,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16 WrapperNode [2021-12-06 17:36:16,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:36:16,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:36:16,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:36:16,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:36:16,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:16,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:18,713 INFO L137 Inliner]: procedures = 410, calls = 3148, calls flagged for inlining = 161, calls inlined = 148, statements flattened = 270283 [2021-12-06 17:36:18,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:36:18,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:36:18,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:36:18,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:36:18,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:18,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:19,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:19,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:20,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:21,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:21,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:22,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:36:22,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:36:22,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:36:22,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:36:22,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (1/1) ... [2021-12-06 17:36:22,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:36:22,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:36:22,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:36:22,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:36:22,672 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_get_from_dev [2021-12-06 17:36:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_get_from_dev [2021-12-06 17:36:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_domain_nr [2021-12-06 17:36:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_domain_nr [2021-12-06 17:36:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_intx_unmask_handler [2021-12-06 17:36:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_intx_unmask_handler [2021-12-06 17:36:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_intx [2021-12-06 17:36:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_intx [2021-12-06 17:36:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 17:36:22,673 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 17:36:22,673 INFO L130 BoogieDeclarations]: Found specification of procedure pci_try_reset_bus [2021-12-06 17:36:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_try_reset_bus [2021-12-06 17:36:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure free_perm_bits [2021-12-06 17:36:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure free_perm_bits [2021-12-06 17:36:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 17:36:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 17:36:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-06 17:36:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-06 17:36:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-06 17:36:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-06 17:36:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-06 17:36:22,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-06 17:36:22,674 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 17:36:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 17:36:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_virqfd_disable [2021-12-06 17:36:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_virqfd_disable [2021-12-06 17:36:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync [2021-12-06 17:36:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync [2021-12-06 17:36:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_unmap [2021-12-06 17:36:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_unmap [2021-12-06 17:36:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure do_io_rw [2021-12-06 17:36:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure do_io_rw [2021-12-06 17:36:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 17:36:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 17:36:22,675 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 17:36:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 17:36:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_get [2021-12-06 17:36:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_get [2021-12-06 17:36:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:36:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-06 17:36:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-06 17:36:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_intx_set_signal [2021-12-06 17:36:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_intx_set_signal [2021-12-06 17:36:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_raw_config_read [2021-12-06 17:36:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_raw_config_read [2021-12-06 17:36:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-06 17:36:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-06 17:36:22,676 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_user_config_write [2021-12-06 17:36:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_user_config_write [2021-12-06 17:36:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-06 17:36:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-06 17:36:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 17:36:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 17:36:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-12-06 17:36:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-12-06 17:36:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure vga_client_register [2021-12-06 17:36:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_client_register [2021-12-06 17:36:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 17:36:22,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-12-06 17:36:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-12-06 17:36:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2021-12-06 17:36:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2021-12-06 17:36:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_rom [2021-12-06 17:36:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_rom [2021-12-06 17:36:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure iommu_group_put [2021-12-06 17:36:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure iommu_group_put [2021-12-06 17:36:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 17:36:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_selected_regions [2021-12-06 17:36:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_selected_regions [2021-12-06 17:36:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:36:22,678 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-06 17:36:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-06 17:36:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 17:36:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 17:36:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure pci_probe_reset_bus [2021-12-06 17:36:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_probe_reset_bus [2021-12-06 17:36:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fdget [2021-12-06 17:36:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fdget [2021-12-06 17:36:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_rw [2021-12-06 17:36:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_rw [2021-12-06 17:36:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-06 17:36:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-06 17:36:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-06 17:36:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-06 17:36:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-06 17:36:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2021-12-06 17:36:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_data [2021-12-06 17:36:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_data [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_default_config_write [2021-12-06 17:36:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_default_config_write [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 17:36:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_send_intx_eventfd [2021-12-06 17:36:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_send_intx_eventfd [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_msi_set_block [2021-12-06 17:36:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_msi_set_block [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_user_config_read [2021-12-06 17:36:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_user_config_read [2021-12-06 17:36:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:36:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 17:36:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-06 17:36:22,681 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-06 17:36:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_set_ctx_trigger_single [2021-12-06 17:36:22,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_set_ctx_trigger_single [2021-12-06 17:36:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_msi_disable [2021-12-06 17:36:22,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_msi_disable [2021-12-06 17:36:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_mmap [2021-12-06 17:36:22,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_mmap [2021-12-06 17:36:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-06 17:36:22,681 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-06 17:36:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_msi_set_vector_signal [2021-12-06 17:36:22,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_msi_set_vector_signal [2021-12-06 17:36:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_bar_rw [2021-12-06 17:36:22,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_bar_rw [2021-12-06 17:36:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-12-06 17:36:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-12-06 17:36:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-06 17:36:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-06 17:36:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:36:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:36:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 17:36:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 17:36:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_perm_bits [2021-12-06 17:36:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_perm_bits [2021-12-06 17:36:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_intx_disable [2021-12-06 17:36:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_intx_disable [2021-12-06 17:36:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_find_cap_start [2021-12-06 17:36:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_find_cap_start [2021-12-06 17:36:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_try_reset_function [2021-12-06 17:36:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_try_reset_function [2021-12-06 17:36:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 17:36:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 17:36:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 17:36:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 17:36:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure p_setb [2021-12-06 17:36:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure p_setb [2021-12-06 17:36:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_ioctl [2021-12-06 17:36:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_ioctl [2021-12-06 17:36:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_raw_config_write [2021-12-06 17:36:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_raw_config_write [2021-12-06 17:36:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-12-06 17:36:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-12-06 17:36:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure pci_user_read_config_word [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_user_read_config_word [2021-12-06 17:36:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-06 17:36:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure p_setd [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure p_setd [2021-12-06 17:36:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure p_setw [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure p_setw [2021-12-06 17:36:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 17:36:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 17:36:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure pci_probe_reset_slot [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_probe_reset_slot [2021-12-06 17:36:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 17:36:22,684 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-06 17:36:22,684 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-06 17:36:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-06 17:36:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-06 17:36:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 17:36:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 17:36:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msix [2021-12-06 17:36:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msix [2021-12-06 17:36:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure pcibios_err_to_errno [2021-12-06 17:36:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pcibios_err_to_errno [2021-12-06 17:36:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-06 17:36:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-06 17:36:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_probe [2021-12-06 17:36:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_probe [2021-12-06 17:36:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_intx_unmask [2021-12-06 17:36:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_intx_unmask [2021-12-06 17:36:22,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2021-12-06 17:36:22,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 17:36:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-06 17:36:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_root_bus [2021-12-06 17:36:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_root_bus [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_spapr_pci_eeh_open [2021-12-06 17:36:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_spapr_pci_eeh_open [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_intx_mask [2021-12-06 17:36:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_intx_mask [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_fill_vconfig_bytes [2021-12-06 17:36:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_fill_vconfig_bytes [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 17:36:22,686 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 17:36:22,686 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 17:36:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure pci_user_write_config_word [2021-12-06 17:36:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_user_write_config_word [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_device_put [2021-12-06 17:36:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_device_put [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 17:36:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_uninit_perm_bits [2021-12-06 17:36:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_uninit_perm_bits [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-06 17:36:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 17:36:22,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 17:36:22,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_igate_of_vfio_pci_device [2021-12-06 17:36:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_igate_of_vfio_pci_device [2021-12-06 17:36:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 17:36:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 17:36:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_default_config_read [2021-12-06 17:36:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_default_config_read [2021-12-06 17:36:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-06 17:36:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-06 17:36:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure pci_user_write_config_dword [2021-12-06 17:36:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_user_write_config_dword [2021-12-06 17:36:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2021-12-06 17:36:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2021-12-06 17:36:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_rom [2021-12-06 17:36:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_rom [2021-12-06 17:36:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_get_irq_count [2021-12-06 17:36:22,688 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_get_irq_count [2021-12-06 17:36:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_igate_of_vfio_pci_device [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_igate_of_vfio_pci_device [2021-12-06 17:36:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure vga_set_legacy_decoding [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_set_legacy_decoding [2021-12-06 17:36:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_for_each_slot_or_bus [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_for_each_slot_or_bus [2021-12-06 17:36:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_vga_disabled [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_vga_disabled [2021-12-06 17:36:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-06 17:36:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_set_irqs_ioctl [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_set_irqs_ioctl [2021-12-06 17:36:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2021-12-06 17:36:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_master [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_master [2021-12-06 17:36:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-06 17:36:22,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-06 17:36:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-12-06 17:36:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-12-06 17:36:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:36:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_is_vga [2021-12-06 17:36:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_is_vga [2021-12-06 17:36:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure vfio_pci_request [2021-12-06 17:36:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure vfio_pci_request [2021-12-06 17:36:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure pci_try_reset_slot [2021-12-06 17:36:22,690 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_try_reset_slot [2021-12-06 17:36:23,343 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:36:23,346 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:36:23,485 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 17:38:22,857 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:38:23,247 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:38:23,247 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 17:38:23,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:38:23 BoogieIcfgContainer [2021-12-06 17:38:23,360 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:38:23,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:38:23,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:38:23,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:38:23,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:36:08" (1/3) ... [2021-12-06 17:38:23,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228a72b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:38:23, skipping insertion in model container [2021-12-06 17:38:23,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:36:16" (2/3) ... [2021-12-06 17:38:23,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228a72b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:38:23, skipping insertion in model container [2021-12-06 17:38:23,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:38:23" (3/3) ... [2021-12-06 17:38:23,367 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--vfio--pci--vfio-pci.ko-entry_point.cil.out.i [2021-12-06 17:38:23,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:38:23,371 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 17:38:23,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:38:23,660 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 17:38:23,660 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 17:38:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 264543 states, 263887 states have (on average 1.4993652586144828) internal successors, (395663), 263936 states have internal predecessors, (395663), 536 states have call successors, (536), 119 states have call predecessors, (536), 118 states have return successors, (530), 523 states have call predecessors, (530), 530 states have call successors, (530) [2021-12-06 17:38:25,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-12-06 17:38:25,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:38:25,542 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:38:25,542 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:38:25,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:38:25,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1806097317, now seen corresponding path program 1 times [2021-12-06 17:38:25,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:38:25,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446873662] [2021-12-06 17:38:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:38:25,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:38:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:38:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:38:26,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 17:38:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:38:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:38:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:38:26,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 17:38:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:38:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 17:38:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:38:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 17:38:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 17:38:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 17:38:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 17:38:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-06 17:38:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 17:38:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-06 17:38:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-06 17:38:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-06 17:38:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-06 17:38:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:26,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1227 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1227 trivial. 0 not checked. [2021-12-06 17:38:26,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:38:26,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446873662] [2021-12-06 17:38:26,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446873662] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:38:26,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:38:26,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:38:26,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826372093] [2021-12-06 17:38:26,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:38:26,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:38:26,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:38:26,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:38:26,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:38:27,152 INFO L87 Difference]: Start difference. First operand has 264543 states, 263887 states have (on average 1.4993652586144828) internal successors, (395663), 263936 states have internal predecessors, (395663), 536 states have call successors, (536), 119 states have call predecessors, (536), 118 states have return successors, (530), 523 states have call predecessors, (530), 530 states have call successors, (530) Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2021-12-06 17:38:36,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:38:43,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:38:43,044 INFO L93 Difference]: Finished difference Result 530030 states and 795041 transitions. [2021-12-06 17:38:43,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:38:43,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 295 [2021-12-06 17:38:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:38:43,662 INFO L225 Difference]: With dead ends: 530030 [2021-12-06 17:38:43,662 INFO L226 Difference]: Without dead ends: 265469 [2021-12-06 17:38:43,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:38:43,894 INFO L933 BasicCegarLoop]: 396585 mSDtfsCounter, 1577933 mSDsluCounter, 399052 mSDsCounter, 0 mSdLazyCounter, 2797 mSolverCounterSat, 3628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1578112 SdHoareTripleChecker+Valid, 795637 SdHoareTripleChecker+Invalid, 6425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.5s SdHoareTripleChecker+Time, 3628 IncrementalHoareTripleChecker+Valid, 2797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-12-06 17:38:43,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1578112 Valid, 795637 Invalid, 6425 Unknown, 0 Unchecked, 1.5s Time], IncrementalHoareTripleChecker [3628 Valid, 2797 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-12-06 17:38:44,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265469 states. [2021-12-06 17:38:47,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265469 to 265027. [2021-12-06 17:38:47,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265027 states, 264207 states have (on average 1.4990745892425257) internal successors, (396066), 264253 states have internal predecessors, (396066), 657 states have call successors, (657), 163 states have call predecessors, (657), 162 states have return successors, (648), 639 states have call predecessors, (648), 648 states have call successors, (648) [2021-12-06 17:38:48,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265027 states to 265027 states and 397371 transitions. [2021-12-06 17:38:48,603 INFO L78 Accepts]: Start accepts. Automaton has 265027 states and 397371 transitions. Word has length 295 [2021-12-06 17:38:48,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:38:48,613 INFO L470 AbstractCegarLoop]: Abstraction has 265027 states and 397371 transitions. [2021-12-06 17:38:48,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2021-12-06 17:38:48,614 INFO L276 IsEmpty]: Start isEmpty. Operand 265027 states and 397371 transitions. [2021-12-06 17:38:48,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-12-06 17:38:48,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:38:48,643 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:38:48,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:38:48,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:38:48,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:38:48,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1004263912, now seen corresponding path program 1 times [2021-12-06 17:38:48,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:38:48,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125774176] [2021-12-06 17:38:48,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:38:48,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:38:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:38:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:48,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:38:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 17:38:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:38:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:38:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:38:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 17:38:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:38:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:48,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 17:38:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:38:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 17:38:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 17:38:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 17:38:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:38:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 17:38:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-06 17:38:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 17:38:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-06 17:38:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-06 17:38:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-06 17:38:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-06 17:38:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-06 17:38:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-06 17:38:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:38:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:38:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2021-12-06 17:38:49,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:38:49,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125774176] [2021-12-06 17:38:49,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125774176] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:38:49,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:38:49,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 17:38:49,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501998058] [2021-12-06 17:38:49,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:38:49,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 17:38:49,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:38:49,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 17:38:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-06 17:38:49,228 INFO L87 Difference]: Start difference. First operand 265027 states and 397371 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 17:39:03,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:39:12,568 INFO L93 Difference]: Finished difference Result 795728 states and 1193248 transitions. [2021-12-06 17:39:12,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:39:12,569 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 323 [2021-12-06 17:39:12,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:39:13,343 INFO L225 Difference]: With dead ends: 795728 [2021-12-06 17:39:13,344 INFO L226 Difference]: Without dead ends: 530744 [2021-12-06 17:39:13,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-06 17:39:13,704 INFO L933 BasicCegarLoop]: 792298 mSDtfsCounter, 1579045 mSDsluCounter, 403472 mSDsCounter, 0 mSdLazyCounter, 5791 mSolverCounterSat, 3270 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579503 SdHoareTripleChecker+Valid, 1195770 SdHoareTripleChecker+Invalid, 9062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.9s SdHoareTripleChecker+Time, 3270 IncrementalHoareTripleChecker+Valid, 5791 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-06 17:39:13,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1579503 Valid, 1195770 Invalid, 9062 Unknown, 0 Unchecked, 1.9s Time], IncrementalHoareTripleChecker [3270 Valid, 5791 Invalid, 1 Unknown, 0 Unchecked, 12.5s Time] [2021-12-06 17:39:14,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530744 states. [2021-12-06 17:39:19,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530744 to 529905. [2021-12-06 17:39:19,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529905 states, 528325 states have (on average 1.4991226990962003) internal successors, (792024), 528410 states have internal predecessors, (792024), 1263 states have call successors, (1263), 316 states have call predecessors, (1263), 316 states have return successors, (1258), 1236 states have call predecessors, (1258), 1254 states have call successors, (1258) [2021-12-06 17:39:21,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529905 states to 529905 states and 794545 transitions. [2021-12-06 17:39:21,407 INFO L78 Accepts]: Start accepts. Automaton has 529905 states and 794545 transitions. Word has length 323 [2021-12-06 17:39:21,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:39:21,408 INFO L470 AbstractCegarLoop]: Abstraction has 529905 states and 794545 transitions. [2021-12-06 17:39:21,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-06 17:39:21,408 INFO L276 IsEmpty]: Start isEmpty. Operand 529905 states and 794545 transitions. [2021-12-06 17:39:21,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-12-06 17:39:21,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:39:21,416 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:39:21,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:39:21,416 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:39:21,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:39:21,416 INFO L85 PathProgramCache]: Analyzing trace with hash -519436740, now seen corresponding path program 1 times [2021-12-06 17:39:21,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:39:21,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645057178] [2021-12-06 17:39:21,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:39:21,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:39:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:39:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:39:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 17:39:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:39:21,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:39:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:39:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 17:39:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:39:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 17:39:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:39:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 17:39:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 17:39:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 17:39:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 17:39:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-06 17:39:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 17:39:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-06 17:39:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-06 17:39:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-06 17:39:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-06 17:39:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-06 17:39:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-06 17:39:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-06 17:39:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-06 17:39:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-06 17:39:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:22,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-06 17:39:22,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-06 17:39:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 17:39:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:39:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:39:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:39:22,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1647 trivial. 0 not checked. [2021-12-06 17:39:22,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:39:22,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645057178] [2021-12-06 17:39:22,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645057178] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:39:22,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:39:22,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 17:39:22,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837054399] [2021-12-06 17:39:22,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:39:22,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 17:39:22,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:39:22,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 17:39:22,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:39:22,154 INFO L87 Difference]: Start difference. First operand 529905 states and 794545 transitions. Second operand has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-06 17:39:33,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:35,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:37,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:50,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:52,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:54,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 17:39:59,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:39:59,598 INFO L93 Difference]: Finished difference Result 1590775 states and 2385436 transitions. [2021-12-06 17:39:59,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:39:59,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 399 [2021-12-06 17:39:59,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:40:00,947 INFO L225 Difference]: With dead ends: 1590775 [2021-12-06 17:40:00,947 INFO L226 Difference]: Without dead ends: 1060913 [2021-12-06 17:40:01,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-12-06 17:40:01,446 INFO L933 BasicCegarLoop]: 792317 mSDtfsCounter, 1185422 mSDsluCounter, 403412 mSDsCounter, 0 mSdLazyCounter, 6441 mSolverCounterSat, 2628 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185883 SdHoareTripleChecker+Valid, 1195729 SdHoareTripleChecker+Invalid, 9070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.7s SdHoareTripleChecker+Time, 2628 IncrementalHoareTripleChecker+Valid, 6441 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2021-12-06 17:40:01,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185883 Valid, 1195729 Invalid, 9070 Unknown, 0 Unchecked, 1.7s Time], IncrementalHoareTripleChecker [2628 Valid, 6441 Invalid, 1 Unknown, 0 Unchecked, 23.3s Time] [2021-12-06 17:40:02,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060913 states. [2021-12-06 17:40:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060913 to 1059281. [2021-12-06 17:40:12,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059281 states, 1056361 states have (on average 1.499175944587125) internal successors, (1583671), 1056515 states have internal predecessors, (1583671), 2295 states have call successors, (2295), 623 states have call predecessors, (2295), 624 states have return successors, (2294), 2254 states have call predecessors, (2294), 2286 states have call successors, (2294) [2021-12-06 17:40:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059281 states to 1059281 states and 1588260 transitions. [2021-12-06 17:40:14,885 INFO L78 Accepts]: Start accepts. Automaton has 1059281 states and 1588260 transitions. Word has length 399 [2021-12-06 17:40:14,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:40:14,886 INFO L470 AbstractCegarLoop]: Abstraction has 1059281 states and 1588260 transitions. [2021-12-06 17:40:14,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.888888888888889) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (34), 8 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2021-12-06 17:40:14,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1059281 states and 1588260 transitions. [2021-12-06 17:40:14,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2021-12-06 17:40:14,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:40:14,897 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:40:14,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 17:40:14,898 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:40:14,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:40:14,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1211836676, now seen corresponding path program 1 times [2021-12-06 17:40:14,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:40:14,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553338087] [2021-12-06 17:40:14,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:40:14,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:40:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 17:40:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 17:40:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 17:40:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 17:40:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-06 17:40:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-06 17:40:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-06 17:40:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-06 17:40:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-06 17:40:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-06 17:40:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-06 17:40:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-06 17:40:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-06 17:40:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 17:40:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-06 17:40:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-06 17:40:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-06 17:40:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-06 17:40:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-06 17:40:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-06 17:40:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-12-06 17:40:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-12-06 17:40:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:40:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-06 17:40:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:40:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2021-12-06 17:40:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:40:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2021-12-06 17:40:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:40:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2021-12-06 17:40:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:40:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:15,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:15,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2021-12-06 17:40:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:40:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 598 [2021-12-06 17:40:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 17:40:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 17:40:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3201 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3183 trivial. 0 not checked. [2021-12-06 17:40:16,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:40:16,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553338087] [2021-12-06 17:40:16,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553338087] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:40:16,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471680903] [2021-12-06 17:40:16,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:40:16,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:40:16,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:40:16,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:40:16,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ad069d-7899-4b79-92bf-64bc18803284/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 17:40:17,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:40:17,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 5111 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:40:17,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:40:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 3201 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 2655 trivial. 0 not checked. [2021-12-06 17:40:17,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:40:17,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471680903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:40:17,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:40:17,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 8 [2021-12-06 17:40:17,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785444865] [2021-12-06 17:40:17,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:40:17,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 17:40:17,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:40:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 17:40:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-12-06 17:40:17,783 INFO L87 Difference]: Start difference. First operand 1059281 states and 1588260 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40)