./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9c42c8b471bd3f5eb0961ccb5a29636ff44887b239ea3f28bd7f2f4f7de76e57 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:47:45,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:47:45,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:47:45,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:47:45,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:47:45,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:47:45,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:47:45,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:47:45,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:47:45,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:47:45,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:47:45,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:47:45,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:47:45,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:47:45,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:47:45,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:47:45,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:47:45,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:47:45,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:47:45,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:47:45,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:47:45,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:47:45,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:47:45,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:47:45,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:47:45,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:47:45,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:47:45,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:47:45,716 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:47:45,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:47:45,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:47:45,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:47:45,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:47:45,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:47:45,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:47:45,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:47:45,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:47:45,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:47:45,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:47:45,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:47:45,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:47:45,732 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:47:45,782 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:47:45,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:47:45,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:47:45,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:47:45,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:47:45,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:47:45,785 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:47:45,785 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:47:45,785 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:47:45,786 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:47:45,787 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:47:45,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:47:45,788 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:47:45,788 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:47:45,788 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:47:45,789 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:47:45,789 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:47:45,789 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:47:45,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:47:45,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:47:45,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:47:45,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:47:45,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:47:45,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:47:45,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:47:45,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:47:45,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:47:45,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:47:45,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:47:45,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:47:45,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:47:45,795 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:47:45,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:47:45,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:47:45,796 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:47:45,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:47:45,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:47:45,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:47:45,797 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_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c42c8b471bd3f5eb0961ccb5a29636ff44887b239ea3f28bd7f2f4f7de76e57 [2022-11-23 15:47:46,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:47:46,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:47:46,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:47:46,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:47:46,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:47:46,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2022-11-23 15:47:49,427 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:47:50,369 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:47:50,369 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2022-11-23 15:47:50,440 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/data/9ae470e34/51a94aa07acf441e8521a3edfa13aa4c/FLAG43f51bf6d [2022-11-23 15:47:50,462 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/data/9ae470e34/51a94aa07acf441e8521a3edfa13aa4c [2022-11-23 15:47:50,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:47:50,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:47:50,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:47:50,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:47:50,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:47:50,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:47:50" (1/1) ... [2022-11-23 15:47:50,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555bd0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:50, skipping insertion in model container [2022-11-23 15:47:50,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:47:50" (1/1) ... [2022-11-23 15:47:50,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:47:50,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:47:55,165 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i[465063,465076] [2022-11-23 15:47:55,219 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-23 15:47:55,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:47:55,279 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:47:56,295 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i[465063,465076] [2022-11-23 15:47:56,301 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-23 15:47:56,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:47:56,472 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:47:56,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56 WrapperNode [2022-11-23 15:47:56,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:47:56,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:47:56,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:47:56,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:47:56,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:56,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:57,214 INFO L138 Inliner]: procedures = 391, calls = 6688, calls flagged for inlining = 164, calls inlined = 159, statements flattened = 14822 [2022-11-23 15:47:57,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:47:57,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:47:57,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:47:57,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:47:57,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:57,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:57,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:57,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:57,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:57,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:57,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:57,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:58,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:47:58,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:47:58,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:47:58,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:47:58,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (1/1) ... [2022-11-23 15:47:58,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:47:58,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:47:58,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:47:58,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_191e3832-22ca-484d-a275-47575c442637/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:47:58,115 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_hub_control [2022-11-23 15:47:58,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_hub_control [2022-11-23 15:47:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure list_splice_tail_init [2022-11-23 15:47:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure list_splice_tail_init [2022-11-23 15:47:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_free [2022-11-23 15:47:58,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_free [2022-11-23 15:47:58,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 15:47:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 15:47:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure turn_on_io_watchdog [2022-11-23 15:47:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure turn_on_io_watchdog [2022-11-23 15:47:58,117 INFO L130 BoogieDeclarations]: Found specification of procedure dbgp_external_startup [2022-11-23 15:47:58,117 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgp_external_startup [2022-11-23 15:47:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-23 15:47:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-23 15:47:58,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-23 15:47:58,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-23 15:47:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure set_ohci_hcfs [2022-11-23 15:47:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure set_ohci_hcfs [2022-11-23 15:47:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:47:58,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:47:58,119 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-11-23 15:47:58,120 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-11-23 15:47:58,120 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_to_hcd [2022-11-23 15:47:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_to_hcd [2022-11-23 15:47:58,121 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_endpoint_disable [2022-11-23 15:47:58,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_endpoint_disable [2022-11-23 15:47:58,122 INFO L130 BoogieDeclarations]: Found specification of procedure qh_destroy [2022-11-23 15:47:58,122 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_destroy [2022-11-23 15:47:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure compute_tt_budget [2022-11-23 15:47:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure compute_tt_budget [2022-11-23 15:47:58,123 INFO L130 BoogieDeclarations]: Found specification of procedure end_free_itds [2022-11-23 15:47:58,123 INFO L138 BoogieDeclarations]: Found implementation of procedure end_free_itds [2022-11-23 15:47:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 15:47:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 15:47:58,124 INFO L130 BoogieDeclarations]: Found specification of procedure tt_available [2022-11-23 15:47:58,124 INFO L138 BoogieDeclarations]: Found implementation of procedure tt_available [2022-11-23 15:47:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_intr [2022-11-23 15:47:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_intr [2022-11-23 15:47:58,125 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-11-23 15:47:58,125 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-11-23 15:47:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_port_handed_over [2022-11-23 15:47:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_port_handed_over [2022-11-23 15:47:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-11-23 15:47:58,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-11-23 15:47:58,126 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_read_frame_index [2022-11-23 15:47:58,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_read_frame_index [2022-11-23 15:47:58,127 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_port_speed [2022-11-23 15:47:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_port_speed [2022-11-23 15:47:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:47:58,128 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-23 15:47:58,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-23 15:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-23 15:47:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-23 15:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 15:47:58,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 15:47:58,129 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 15:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 15:47:58,130 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-23 15:47:58,130 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-23 15:47:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:47:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_command_buf [2022-11-23 15:47:58,131 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_command_buf [2022-11-23 15:47:58,131 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-23 15:47:58,131 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-23 15:47:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_remove_device [2022-11-23 15:47:58,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_remove_device [2022-11-23 15:47:58,132 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-23 15:47:58,132 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-23 15:47:58,133 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-23 15:47:58,134 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-23 15:47:58,134 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 15:47:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 15:47:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_endpoint_reset [2022-11-23 15:47:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_endpoint_reset [2022-11-23 15:47:58,135 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_setup [2022-11-23 15:47:58,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_setup [2022-11-23 15:47:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-23 15:47:58,137 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-23 15:47:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-23 15:47:58,137 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-23 15:47:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:47:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 15:47:58,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 15:47:58,138 INFO L130 BoogieDeclarations]: Found specification of procedure qh_schedule [2022-11-23 15:47:58,138 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_schedule [2022-11-23 15:47:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_hub_status_data [2022-11-23 15:47:58,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_hub_status_data [2022-11-23 15:47:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure check_intr_schedule [2022-11-23 15:47:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure check_intr_schedule [2022-11-23 15:47:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-23 15:47:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-23 15:47:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-23 15:47:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-23 15:47:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 15:47:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 15:47:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-23 15:47:58,142 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-23 15:47:58,142 INFO L130 BoogieDeclarations]: Found specification of procedure iso_sched_alloc [2022-11-23 15:47:58,142 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_sched_alloc [2022-11-23 15:47:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-23 15:47:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-23 15:47:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_silence_controller [2022-11-23 15:47:58,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_silence_controller [2022-11-23 15:47:58,143 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_clear_tt_buffer [2022-11-23 15:47:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_clear_tt_buffer [2022-11-23 15:47:58,144 INFO L130 BoogieDeclarations]: Found specification of procedure submit_single_step_set_feature [2022-11-23 15:47:58,144 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_single_step_set_feature [2022-11-23 15:47:58,145 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_set_command_bit [2022-11-23 15:47:58,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_set_command_bit [2022-11-23 15:47:58,148 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_work [2022-11-23 15:47:58,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_work [2022-11-23 15:47:58,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 15:47:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 15:47:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:47:58,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-23 15:47:58,153 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_mem_cleanup [2022-11-23 15:47:58,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_mem_cleanup [2022-11-23 15:47:58,154 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-23 15:47:58,159 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-23 15:47:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-23 15:47:58,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-23 15:47:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:47:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_relinquish_port [2022-11-23 15:47:58,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_relinquish_port [2022-11-23 15:47:58,160 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_clear_tt_buffer_complete [2022-11-23 15:47:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_clear_tt_buffer_complete [2022-11-23 15:47:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure dbgp_reset_prep [2022-11-23 15:47:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgp_reset_prep [2022-11-23 15:47:58,161 INFO L130 BoogieDeclarations]: Found specification of procedure usb_calc_bus_time [2022-11-23 15:47:58,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_calc_bus_time [2022-11-23 15:47:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_cancel [2022-11-23 15:47:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_cancel [2022-11-23 15:47:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 15:47:58,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 15:47:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:47:58,162 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-23 15:47:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-23 15:47:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure qh_urb_transaction [2022-11-23 15:47:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_urb_transaction [2022-11-23 15:47:58,163 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-23 15:47:58,163 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-23 15:47:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_quiesce [2022-11-23 15:47:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_quiesce [2022-11-23 15:47:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:47:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:47:58,164 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-23 15:47:58,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-23 15:47:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 15:47:58,165 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 15:47:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-23 15:47:58,165 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-23 15:47:58,165 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2022-11-23 15:47:58,166 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2022-11-23 15:47:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-23 15:47:58,166 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-23 15:47:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure qh_refresh [2022-11-23 15:47:58,166 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_refresh [2022-11-23 15:47:58,166 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 15:47:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 15:47:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_run [2022-11-23 15:47:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_run [2022-11-23 15:47:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-23 15:47:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-23 15:47:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 15:47:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 15:47:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure qh_append_tds [2022-11-23 15:47:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_append_tds [2022-11-23 15:47:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_alloc [2022-11-23 15:47:58,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_alloc [2022-11-23 15:47:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_writel [2022-11-23 15:47:58,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_writel [2022-11-23 15:47:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:47:58,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:47:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_readl [2022-11-23 15:47:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_readl [2022-11-23 15:47:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 15:47:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 15:47:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure single_unlink_async [2022-11-23 15:47:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure single_unlink_async [2022-11-23 15:47:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_reset [2022-11-23 15:47:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_reset [2022-11-23 15:47:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure iso_stream_find [2022-11-23 15:47:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_stream_find [2022-11-23 15:47:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2022-11-23 15:47:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2022-11-23 15:47:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_status_buf [2022-11-23 15:47:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_status_buf [2022-11-23 15:47:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 15:47:58,172 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 15:47:58,172 INFO L130 BoogieDeclarations]: Found specification of procedure reserve_release_intr_bandwidth [2022-11-23 15:47:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure reserve_release_intr_bandwidth [2022-11-23 15:47:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_stop [2022-11-23 15:47:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_stop [2022-11-23 15:47:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:47:58,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:47:58,173 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_periodic [2022-11-23 15:47:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_periodic [2022-11-23 15:47:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_enqueue [2022-11-23 15:47:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_enqueue [2022-11-23 15:47:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-11-23 15:47:58,174 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-11-23 15:47:58,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-11-23 15:47:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-11-23 15:47:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_shutdown [2022-11-23 15:47:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_shutdown [2022-11-23 15:47:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-23 15:47:58,175 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-23 15:47:58,175 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:47:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:47:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:47:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:47:58,176 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_next_shadow [2022-11-23 15:47:58,176 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_next_shadow [2022-11-23 15:47:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-11-23 15:47:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-11-23 15:47:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-23 15:47:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-23 15:47:58,177 INFO L130 BoogieDeclarations]: Found specification of procedure otg_start_hnp [2022-11-23 15:47:58,177 INFO L138 BoogieDeclarations]: Found implementation of procedure otg_start_hnp [2022-11-23 15:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2022-11-23 15:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2022-11-23 15:47:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:47:58,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:47:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_halt [2022-11-23 15:47:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_halt [2022-11-23 15:47:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure reserve_release_iso_bandwidth [2022-11-23 15:47:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure reserve_release_iso_bandwidth [2022-11-23 15:47:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2022-11-23 15:47:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2022-11-23 15:47:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure submit_async [2022-11-23 15:47:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_async [2022-11-23 15:47:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-23 15:47:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-23 15:47:58,181 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handover_companion_ports [2022-11-23 15:47:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handover_companion_ports [2022-11-23 15:47:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure start_free_itds [2022-11-23 15:47:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure start_free_itds [2022-11-23 15:47:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:47:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_port_power [2022-11-23 15:47:58,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_port_power [2022-11-23 15:47:58,186 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 15:47:58,187 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 15:47:58,187 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_urb [2022-11-23 15:47:58,188 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_urb [2022-11-23 15:47:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure bus_to_hcd [2022-11-23 15:47:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_to_hcd [2022-11-23 15:47:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2022-11-23 15:47:58,190 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2022-11-23 15:47:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:47:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_amd_quirk_pll_enable [2022-11-23 15:47:58,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_amd_quirk_pll_enable [2022-11-23 15:47:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-11-23 15:47:58,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-11-23 15:47:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2022-11-23 15:47:58,191 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2022-11-23 15:47:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-23 15:47:58,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-23 15:47:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_dequeue [2022-11-23 15:47:58,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_dequeue [2022-11-23 15:47:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_unlink_wait_intr [2022-11-23 15:47:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_unlink_wait_intr [2022-11-23 15:47:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure list_is_singular [2022-11-23 15:47:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure list_is_singular [2022-11-23 15:47:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handle_controller_death [2022-11-23 15:47:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handle_controller_death [2022-11-23 15:47:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:47:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_enable_event [2022-11-23 15:47:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_enable_event [2022-11-23 15:47:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure start_iaa_cycle [2022-11-23 15:47:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure start_iaa_cycle [2022-11-23 15:47:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-23 15:47:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_get_frame [2022-11-23 15:47:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_get_frame [2022-11-23 15:47:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure iso_stream_schedule [2022-11-23 15:47:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_stream_schedule [2022-11-23 15:47:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_bus_resume [2022-11-23 15:47:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_bus_resume [2022-11-23 15:47:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_port_buf [2022-11-23 15:47:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_port_buf [2022-11-23 15:47:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2022-11-23 15:47:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2022-11-23 15:47:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure disable_periodic [2022-11-23 15:47:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_periodic [2022-11-23 15:47:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure enable_periodic [2022-11-23 15:47:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_periodic [2022-11-23 15:47:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure qh_lines [2022-11-23 15:47:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_lines [2022-11-23 15:47:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_end_port_resume [2022-11-23 15:47:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_end_port_resume [2022-11-23 15:47:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-23 15:47:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-23 15:47:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qh_alloc [2022-11-23 15:47:58,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qh_alloc [2022-11-23 15:47:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_irq [2022-11-23 15:47:58,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_irq [2022-11-23 15:47:58,197 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-23 15:47:58,197 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-23 15:47:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handshake [2022-11-23 15:47:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handshake [2022-11-23 15:47:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_clear_command_bit [2022-11-23 15:47:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_clear_command_bit [2022-11-23 15:47:58,198 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 15:47:58,198 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 15:47:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure bandwidth_dbg [2022-11-23 15:47:58,199 INFO L138 BoogieDeclarations]: Found implementation of procedure bandwidth_dbg [2022-11-23 15:47:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:47:58,199 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:47:58,199 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-23 15:47:58,199 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-23 15:47:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_start_port_resume [2022-11-23 15:47:58,200 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_start_port_resume [2022-11-23 15:47:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:47:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handle_intr_unlinks [2022-11-23 15:47:58,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handle_intr_unlinks [2022-11-23 15:47:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_link_urb_to_ep [2022-11-23 15:47:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_link_urb_to_ep [2022-11-23 15:47:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-23 15:47:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-23 15:47:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 15:47:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 15:47:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure iso_sched_free [2022-11-23 15:47:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_sched_free [2022-11-23 15:47:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handle_start_intr_unlinks [2022-11-23 15:47:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handle_start_intr_unlinks [2022-11-23 15:47:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure usb_amd_quirk_pll_disable [2022-11-23 15:47:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_amd_quirk_pll_disable [2022-11-23 15:47:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 15:47:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 15:47:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_poll_ASS [2022-11-23 15:47:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_poll_ASS [2022-11-23 15:47:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 15:47:58,203 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 15:47:58,203 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_async [2022-11-23 15:47:58,204 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_async [2022-11-23 15:47:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_bus_suspend [2022-11-23 15:47:58,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_bus_suspend [2022-11-23 15:47:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure check_period [2022-11-23 15:47:58,204 INFO L138 BoogieDeclarations]: Found implementation of procedure check_period [2022-11-23 15:47:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-23 15:47:58,205 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-23 15:47:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-23 15:47:58,205 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-23 15:47:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure shadow_next_periodic [2022-11-23 15:47:58,205 INFO L138 BoogieDeclarations]: Found implementation of procedure shadow_next_periodic [2022-11-23 15:47:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_done [2022-11-23 15:47:58,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_done [2022-11-23 15:47:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_init [2022-11-23 15:47:58,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_init [2022-11-23 15:47:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-11-23 15:47:58,206 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-11-23 15:47:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure set_owner [2022-11-23 15:47:58,207 INFO L138 BoogieDeclarations]: Found implementation of procedure set_owner [2022-11-23 15:47:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-11-23 15:47:58,207 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-11-23 15:47:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2022-11-23 15:47:58,207 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2022-11-23 15:47:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-23 15:47:58,208 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-23 15:47:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-11-23 15:47:58,208 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-11-23 15:47:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_ehci [2022-11-23 15:47:58,208 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_ehci [2022-11-23 15:47:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure find_tt [2022-11-23 15:47:58,209 INFO L138 BoogieDeclarations]: Found implementation of procedure find_tt [2022-11-23 15:47:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 15:47:58,209 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 15:47:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:47:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_poll_PSS [2022-11-23 15:47:58,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_poll_PSS [2022-11-23 15:47:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-23 15:47:58,210 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-23 15:47:58,211 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-23 15:47:58,211 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-23 15:48:00,238 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:48:00,243 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:48:07,764 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:48:26,240 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:48:31,456 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:48:31,457 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:48:31,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:48:31 BoogieIcfgContainer [2022-11-23 15:48:31,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:48:31,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:48:31,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:48:31,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:48:31,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:47:50" (1/3) ... [2022-11-23 15:48:31,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609d6390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:48:31, skipping insertion in model container [2022-11-23 15:48:31,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:47:56" (2/3) ... [2022-11-23 15:48:31,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609d6390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:48:31, skipping insertion in model container [2022-11-23 15:48:31,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:48:31" (3/3) ... [2022-11-23 15:48:31,475 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2022-11-23 15:48:31,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:48:31,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:48:31,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:48:31,666 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44e5b87d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:48:31,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:48:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 4131 states, 2532 states have (on average 1.348736176935229) internal successors, (3415), 2677 states have internal predecessors, (3415), 1418 states have call successors, (1418), 180 states have call predecessors, (1418), 179 states have return successors, (1409), 1369 states have call predecessors, (1409), 1409 states have call successors, (1409) [2022-11-23 15:48:31,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-11-23 15:48:31,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:48:31,711 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:48:31,711 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:48:31,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:48:31,717 INFO L85 PathProgramCache]: Analyzing trace with hash -2056365364, now seen corresponding path program 1 times [2022-11-23 15:48:31,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:48:31,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589743693] [2022-11-23 15:48:31,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:48:31,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:48:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:48:34,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-23 15:48:34,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:48:34,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589743693] [2022-11-23 15:48:34,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589743693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:48:34,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:48:34,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:48:34,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167575964] [2022-11-23 15:48:34,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:48:34,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:48:34,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:48:34,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:48:34,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:48:34,290 INFO L87 Difference]: Start difference. First operand has 4131 states, 2532 states have (on average 1.348736176935229) internal successors, (3415), 2677 states have internal predecessors, (3415), 1418 states have call successors, (1418), 180 states have call predecessors, (1418), 179 states have return successors, (1409), 1369 states have call predecessors, (1409), 1409 states have call successors, (1409) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-23 15:48:36,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:40,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:48:42,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:48,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:48:48,388 INFO L93 Difference]: Finished difference Result 12066 states and 18470 transitions. [2022-11-23 15:48:48,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:48:48,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 392 [2022-11-23 15:48:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:48:48,485 INFO L225 Difference]: With dead ends: 12066 [2022-11-23 15:48:48,485 INFO L226 Difference]: Without dead ends: 7962 [2022-11-23 15:48:48,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:48:48,551 INFO L413 NwaCegarLoop]: 7108 mSDtfsCounter, 5871 mSDsluCounter, 5783 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5878 SdHoareTripleChecker+Valid, 12891 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:48:48,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5878 Valid, 12891 Invalid, 900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 896 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2022-11-23 15:48:48,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7962 states. [2022-11-23 15:48:49,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7962 to 7955. [2022-11-23 15:48:49,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7955 states, 4902 states have (on average 1.3482252141982864) internal successors, (6609), 5170 states have internal predecessors, (6609), 2707 states have call successors, (2707), 346 states have call predecessors, (2707), 345 states have return successors, (2712), 2623 states have call predecessors, (2712), 2705 states have call successors, (2712) [2022-11-23 15:48:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7955 states to 7955 states and 12028 transitions. [2022-11-23 15:48:49,414 INFO L78 Accepts]: Start accepts. Automaton has 7955 states and 12028 transitions. Word has length 392 [2022-11-23 15:48:49,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:48:49,421 INFO L495 AbstractCegarLoop]: Abstraction has 7955 states and 12028 transitions. [2022-11-23 15:48:49,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-23 15:48:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 7955 states and 12028 transitions. [2022-11-23 15:48:49,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-11-23 15:48:49,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:48:49,444 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:48:49,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:48:49,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:48:49,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:48:49,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1670985756, now seen corresponding path program 1 times [2022-11-23 15:48:49,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:48:49,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336850832] [2022-11-23 15:48:49,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:48:49,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:48:50,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:48:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-23 15:48:51,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:48:51,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336850832] [2022-11-23 15:48:51,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336850832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:48:51,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:48:51,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:48:51,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431223130] [2022-11-23 15:48:51,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:48:51,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:48:51,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:48:51,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:48:51,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:48:51,030 INFO L87 Difference]: Start difference. First operand 7955 states and 12028 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-23 15:48:53,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:48:58,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:04,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:49:04,443 INFO L93 Difference]: Finished difference Result 23491 states and 35535 transitions. [2022-11-23 15:49:04,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:49:04,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 394 [2022-11-23 15:49:04,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:49:04,562 INFO L225 Difference]: With dead ends: 23491 [2022-11-23 15:49:04,562 INFO L226 Difference]: Without dead ends: 15615 [2022-11-23 15:49:04,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:49:04,614 INFO L413 NwaCegarLoop]: 7078 mSDtfsCounter, 5804 mSDsluCounter, 5739 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5809 SdHoareTripleChecker+Valid, 12817 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-11-23 15:49:04,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5809 Valid, 12817 Invalid, 896 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 893 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-11-23 15:49:04,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15615 states. [2022-11-23 15:49:05,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15615 to 15608. [2022-11-23 15:49:05,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15608 states, 9636 states have (on average 1.350975508509755) internal successors, (13018), 10171 states have internal predecessors, (13018), 5290 states have call successors, (5290), 682 states have call predecessors, (5290), 681 states have return successors, (5307), 5123 states have call predecessors, (5307), 5288 states have call successors, (5307) [2022-11-23 15:49:06,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15608 states to 15608 states and 23615 transitions. [2022-11-23 15:49:06,016 INFO L78 Accepts]: Start accepts. Automaton has 15608 states and 23615 transitions. Word has length 394 [2022-11-23 15:49:06,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:49:06,023 INFO L495 AbstractCegarLoop]: Abstraction has 15608 states and 23615 transitions. [2022-11-23 15:49:06,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-23 15:49:06,024 INFO L276 IsEmpty]: Start isEmpty. Operand 15608 states and 23615 transitions. [2022-11-23 15:49:06,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-11-23 15:49:06,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:49:06,035 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:49:06,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:49:06,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:49:06,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:49:06,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1436684991, now seen corresponding path program 1 times [2022-11-23 15:49:06,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:49:06,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736662957] [2022-11-23 15:49:06,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:49:06,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:49:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:49:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-23 15:49:07,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:49:07,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736662957] [2022-11-23 15:49:07,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736662957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:49:07,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:49:07,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:49:07,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824176838] [2022-11-23 15:49:07,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:49:07,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:49:07,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:49:07,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:49:07,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:49:07,214 INFO L87 Difference]: Start difference. First operand 15608 states and 23615 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-23 15:49:09,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:13,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:19,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:21,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:49:22,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:49:22,492 INFO L93 Difference]: Finished difference Result 46442 states and 70278 transitions. [2022-11-23 15:49:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:49:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 397 [2022-11-23 15:49:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:49:22,719 INFO L225 Difference]: With dead ends: 46442 [2022-11-23 15:49:22,719 INFO L226 Difference]: Without dead ends: 30913 [2022-11-23 15:49:22,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:49:22,816 INFO L413 NwaCegarLoop]: 7111 mSDtfsCounter, 5822 mSDsluCounter, 5739 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5827 SdHoareTripleChecker+Valid, 12850 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:49:22,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5827 Valid, 12850 Invalid, 898 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 894 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2022-11-23 15:49:22,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30913 states. [2022-11-23 15:49:25,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30913 to 30906. [2022-11-23 15:49:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30906 states, 19090 states have (on average 1.351702462022001) internal successors, (25804), 20159 states have internal predecessors, (25804), 10462 states have call successors, (10462), 1354 states have call predecessors, (10462), 1353 states have return successors, (10503), 10129 states have call predecessors, (10503), 10460 states have call successors, (10503) [2022-11-23 15:49:25,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30906 states to 30906 states and 46769 transitions. [2022-11-23 15:49:25,577 INFO L78 Accepts]: Start accepts. Automaton has 30906 states and 46769 transitions. Word has length 397 [2022-11-23 15:49:25,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:49:25,578 INFO L495 AbstractCegarLoop]: Abstraction has 30906 states and 46769 transitions. [2022-11-23 15:49:25,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-23 15:49:25,579 INFO L276 IsEmpty]: Start isEmpty. Operand 30906 states and 46769 transitions. [2022-11-23 15:49:25,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-11-23 15:49:25,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:49:25,588 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:49:25,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:49:25,588 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:49:25,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:49:25,589 INFO L85 PathProgramCache]: Analyzing trace with hash -752133493, now seen corresponding path program 1 times [2022-11-23 15:49:25,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:49:25,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650235948] [2022-11-23 15:49:25,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:49:25,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:49:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:49:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-23 15:49:26,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:49:26,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650235948] [2022-11-23 15:49:26,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650235948] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:49:26,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:49:26,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:49:26,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855611325] [2022-11-23 15:49:26,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:49:26,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:49:26,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:49:26,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:49:26,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:49:26,780 INFO L87 Difference]: Start difference. First operand 30906 states and 46769 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-23 15:49:28,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:31,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:39,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:49:39,654 INFO L93 Difference]: Finished difference Result 92055 states and 139344 transitions. [2022-11-23 15:49:39,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:49:39,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 399 [2022-11-23 15:49:39,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:49:40,195 INFO L225 Difference]: With dead ends: 92055 [2022-11-23 15:49:40,195 INFO L226 Difference]: Without dead ends: 61228 [2022-11-23 15:49:40,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:49:40,455 INFO L413 NwaCegarLoop]: 7142 mSDtfsCounter, 5779 mSDsluCounter, 5738 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5784 SdHoareTripleChecker+Valid, 12880 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-23 15:49:40,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5784 Valid, 12880 Invalid, 909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 906 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-11-23 15:49:40,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61228 states. [2022-11-23 15:49:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61228 to 61223. [2022-11-23 15:49:45,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61223 states, 37838 states have (on average 1.3524499180717797) internal successors, (51174), 39965 states have internal predecessors, (51174), 20708 states have call successors, (20708), 2677 states have call predecessors, (20708), 2676 states have return successors, (20797), 20051 states have call predecessors, (20797), 20706 states have call successors, (20797) [2022-11-23 15:49:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61223 states to 61223 states and 92679 transitions. [2022-11-23 15:49:45,875 INFO L78 Accepts]: Start accepts. Automaton has 61223 states and 92679 transitions. Word has length 399 [2022-11-23 15:49:45,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:49:45,876 INFO L495 AbstractCegarLoop]: Abstraction has 61223 states and 92679 transitions. [2022-11-23 15:49:45,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2022-11-23 15:49:45,876 INFO L276 IsEmpty]: Start isEmpty. Operand 61223 states and 92679 transitions. [2022-11-23 15:49:45,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2022-11-23 15:49:45,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:49:45,890 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:49:45,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:49:45,891 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:49:45,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:49:45,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1066779826, now seen corresponding path program 1 times [2022-11-23 15:49:45,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:49:45,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674151904] [2022-11-23 15:49:45,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:49:45,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:49:46,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:49:47,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2667 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-11-23 15:49:47,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:49:47,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674151904] [2022-11-23 15:49:47,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674151904] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:49:47,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:49:47,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:49:47,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614975743] [2022-11-23 15:49:47,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:49:47,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:49:47,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:49:47,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:49:47,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:49:47,613 INFO L87 Difference]: Start difference. First operand 61223 states and 92679 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-23 15:49:49,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:49:56,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:49:58,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:50:01,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:05,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:50:05,554 INFO L93 Difference]: Finished difference Result 161693 states and 243825 transitions. [2022-11-23 15:50:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:50:05,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 427 [2022-11-23 15:50:05,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:50:06,595 INFO L225 Difference]: With dead ends: 161693 [2022-11-23 15:50:06,596 INFO L226 Difference]: Without dead ends: 100549 [2022-11-23 15:50:07,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:50:07,013 INFO L413 NwaCegarLoop]: 9016 mSDtfsCounter, 3958 mSDsluCounter, 5604 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3960 SdHoareTripleChecker+Valid, 14620 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:50:07,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3960 Valid, 14620 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1270 Invalid, 3 Unknown, 0 Unchecked, 14.1s Time] [2022-11-23 15:50:07,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100549 states. [2022-11-23 15:50:12,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100549 to 100540. [2022-11-23 15:50:12,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100540 states, 62076 states have (on average 1.34987756943102) internal successors, (83795), 65638 states have internal predecessors, (83795), 33662 states have call successors, (33662), 4802 states have call predecessors, (33662), 4801 states have return successors, (33781), 32517 states have call predecessors, (33781), 33660 states have call successors, (33781) [2022-11-23 15:50:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100540 states to 100540 states and 151238 transitions. [2022-11-23 15:50:13,100 INFO L78 Accepts]: Start accepts. Automaton has 100540 states and 151238 transitions. Word has length 427 [2022-11-23 15:50:13,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:50:13,101 INFO L495 AbstractCegarLoop]: Abstraction has 100540 states and 151238 transitions. [2022-11-23 15:50:13,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-23 15:50:13,102 INFO L276 IsEmpty]: Start isEmpty. Operand 100540 states and 151238 transitions. [2022-11-23 15:50:13,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2022-11-23 15:50:13,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:13,125 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 22, 22, 22, 22, 22, 22, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:13,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:50:13,125 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:50:13,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:13,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2127317972, now seen corresponding path program 1 times [2022-11-23 15:50:13,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:13,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506460083] [2022-11-23 15:50:13,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:13,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:15,422 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-11-23 15:50:15,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:15,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506460083] [2022-11-23 15:50:15,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506460083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:50:15,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:50:15,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:50:15,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120889559] [2022-11-23 15:50:15,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:50:15,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:50:15,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:50:15,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:50:15,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:50:15,426 INFO L87 Difference]: Start difference. First operand 100540 states and 151238 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-23 15:50:17,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:25,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:50:27,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:50:29,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:35,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:50:35,203 INFO L93 Difference]: Finished difference Result 201097 states and 302488 transitions. [2022-11-23 15:50:35,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:50:35,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 588 [2022-11-23 15:50:35,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:50:35,911 INFO L225 Difference]: With dead ends: 201097 [2022-11-23 15:50:35,911 INFO L226 Difference]: Without dead ends: 100540 [2022-11-23 15:50:36,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:50:36,588 INFO L413 NwaCegarLoop]: 5751 mSDtfsCounter, 3 mSDsluCounter, 11498 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 17249 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:50:36,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 17249 Invalid, 1326 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1323 Invalid, 2 Unknown, 0 Unchecked, 15.3s Time] [2022-11-23 15:50:36,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100540 states. [2022-11-23 15:50:41,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100540 to 100540. [2022-11-23 15:50:41,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100540 states, 62076 states have (on average 1.349362072298473) internal successors, (83763), 65638 states have internal predecessors, (83763), 33662 states have call successors, (33662), 4802 states have call predecessors, (33662), 4801 states have return successors, (33781), 32517 states have call predecessors, (33781), 33660 states have call successors, (33781) [2022-11-23 15:50:42,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100540 states to 100540 states and 151206 transitions. [2022-11-23 15:50:42,501 INFO L78 Accepts]: Start accepts. Automaton has 100540 states and 151206 transitions. Word has length 588 [2022-11-23 15:50:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:50:42,502 INFO L495 AbstractCegarLoop]: Abstraction has 100540 states and 151206 transitions. [2022-11-23 15:50:42,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-23 15:50:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 100540 states and 151206 transitions. [2022-11-23 15:50:42,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2022-11-23 15:50:42,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:50:42,510 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 22, 22, 22, 22, 22, 22, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:50:42,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:50:42,511 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:50:42,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:50:42,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2073671978, now seen corresponding path program 1 times [2022-11-23 15:50:42,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:50:42,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402733720] [2022-11-23 15:50:42,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:50:42,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:50:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:50:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-11-23 15:50:44,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:50:44,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402733720] [2022-11-23 15:50:44,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402733720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:50:44,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:50:44,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:50:44,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107875829] [2022-11-23 15:50:44,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:50:44,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:50:44,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:50:44,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:50:44,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:50:44,651 INFO L87 Difference]: Start difference. First operand 100540 states and 151206 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2022-11-23 15:50:46,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 15:50:53,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 15:50:55,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []