./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c247f7785da4bad35b227af25ef3ffc26bc077e1b05f1520f2d707a8c759410c --- 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-dbf71c6-m [2022-10-17 11:06:19,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:06:19,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:06:19,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:06:19,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:06:19,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:06:19,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:06:19,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:06:19,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:06:19,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:06:19,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:06:19,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:06:19,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:06:19,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:06:19,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:06:19,755 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:06:19,756 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:06:19,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:06:19,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:06:19,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:06:19,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:06:19,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:06:19,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:06:19,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:06:19,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:06:19,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:06:19,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:06:19,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:06:19,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:06:19,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:06:19,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:06:19,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:06:19,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:06:19,809 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:06:19,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:06:19,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:06:19,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:06:19,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:06:19,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:06:19,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:06:19,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:06:19,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 11:06:19,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:06:19,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:06:19,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:06:19,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:06:19,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:06:19,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:06:19,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:06:19,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:06:19,858 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:06:19,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:06:19,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:06:19,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:06:19,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:06:19,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:06:19,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:06:19,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:06:19,859 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:06:19,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:06:19,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:06:19,860 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:06:19,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:06:19,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:06:19,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:06:19,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:06:19,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:06:19,861 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:06:19,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:06:19,862 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:06:19,862 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:06:19,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:06:19,863 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_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c247f7785da4bad35b227af25ef3ffc26bc077e1b05f1520f2d707a8c759410c [2022-10-17 11:06:20,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:06:20,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:06:20,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:06:20,162 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:06:20,163 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:06:20,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i [2022-10-17 11:06:20,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/data/43764dfd0/4838d7fd30d24a14aaf907a9fc6174a3/FLAG421279006 [2022-10-17 11:06:21,410 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:06:21,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i [2022-10-17 11:06:21,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/data/43764dfd0/4838d7fd30d24a14aaf907a9fc6174a3/FLAG421279006 [2022-10-17 11:06:21,674 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/data/43764dfd0/4838d7fd30d24a14aaf907a9fc6174a3 [2022-10-17 11:06:21,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:06:21,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:06:21,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:06:21,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:06:21,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:06:21,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:06:21" (1/1) ... [2022-10-17 11:06:21,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bde76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:21, skipping insertion in model container [2022-10-17 11:06:21,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:06:21" (1/1) ... [2022-10-17 11:06:21,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:06:21,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:06:24,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298288,298301] [2022-10-17 11:06:24,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298435,298448] [2022-10-17 11:06:24,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298574,298587] [2022-10-17 11:06:24,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298732,298745] [2022-10-17 11:06:24,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:06:24,486 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:06:24,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298288,298301] [2022-10-17 11:06:24,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298435,298448] [2022-10-17 11:06:24,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298574,298587] [2022-10-17 11:06:24,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i[298732,298745] [2022-10-17 11:06:24,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:06:25,116 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:06:25,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25 WrapperNode [2022-10-17 11:06:25,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:06:25,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:06:25,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:06:25,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:06:25,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,470 INFO L138 Inliner]: procedures = 311, calls = 3006, calls flagged for inlining = 171, calls inlined = 158, statements flattened = 5241 [2022-10-17 11:06:25,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:06:25,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:06:25,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:06:25,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:06:25,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,690 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:06:25,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:06:25,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:06:25,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:06:25,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (1/1) ... [2022-10-17 11:06:25,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:06:25,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:06:25,854 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:06:25,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_824ccffc-c40e-43d8-991c-44fd2cdd43aa/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:06:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure read_bulk_callback [2022-10-17 11:06:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure read_bulk_callback [2022-10-17 11:06:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-10-17 11:06:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-10-17 11:06:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-17 11:06:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-17 11:06:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 11:06:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 11:06:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 11:06:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 11:06:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 11:06:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 11:06:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2022-10-17 11:06:25,905 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2022-10-17 11:06:25,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-10-17 11:06:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-10-17 11:06:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 11:06:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 11:06:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-10-17 11:06:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-10-17 11:06:25,906 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2022-10-17 11:06:25,906 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2022-10-17 11:06:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-10-17 11:06:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-10-17 11:06:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-10-17 11:06:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-10-17 11:06:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2022-10-17 11:06:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2022-10-17 11:06:25,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-17 11:06:25,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-17 11:06:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_open [2022-10-17 11:06:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_open [2022-10-17 11:06:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-17 11:06:25,908 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-17 11:06:25,908 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-10-17 11:06:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-10-17 11:06:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:06:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2022-10-17 11:06:25,909 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2022-10-17 11:06:25,909 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-17 11:06:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-17 11:06:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:06:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_nway_reset [2022-10-17 11:06:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_nway_reset [2022-10-17 11:06:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 11:06:25,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 11:06:25,910 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-10-17 11:06:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-10-17 11:06:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 11:06:25,911 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 11:06:25,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 11:06:25,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 11:06:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_resume [2022-10-17 11:06:25,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_resume [2022-10-17 11:06:25,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:06:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 11:06:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-10-17 11:06:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-10-17 11:06:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2022-10-17 11:06:25,914 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2022-10-17 11:06:25,914 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 11:06:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 11:06:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2022-10-17 11:06:25,915 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2022-10-17 11:06:25,915 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-17 11:06:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-17 11:06:25,916 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 11:06:25,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 11:06:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2022-10-17 11:06:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2022-10-17 11:06:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 11:06:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 11:06:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2022-10-17 11:06:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2022-10-17 11:06:25,917 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-17 11:06:25,917 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-17 11:06:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 11:06:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-10-17 11:06:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-10-17 11:06:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 11:06:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2022-10-17 11:06:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2022-10-17 11:06:25,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 11:06:25,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 11:06:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:06:25,919 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-17 11:06:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-17 11:06:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 11:06:25,920 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 11:06:25,920 INFO L130 BoogieDeclarations]: Found specification of procedure intr_callback [2022-10-17 11:06:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_callback [2022-10-17 11:06:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 11:06:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 11:06:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2022-10-17 11:06:25,921 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2022-10-17 11:06:25,921 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2022-10-17 11:06:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2022-10-17 11:06:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 11:06:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 11:06:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-17 11:06:25,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-17 11:06:25,922 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 11:06:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 11:06:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 11:06:25,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 11:06:25,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2022-10-17 11:06:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2022-10-17 11:06:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 11:06:25,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 11:06:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:06:25,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 11:06:25,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 11:06:25,925 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2022-10-17 11:06:25,929 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2022-10-17 11:06:25,929 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2022-10-17 11:06:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2022-10-17 11:06:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:06:25,930 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-17 11:06:25,930 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-17 11:06:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-10-17 11:06:25,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-10-17 11:06:25,931 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-10-17 11:06:25,936 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-10-17 11:06:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:06:25,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 11:06:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 11:06:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:06:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 11:06:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 11:06:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-10-17 11:06:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-10-17 11:06:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 11:06:25,937 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 11:06:25,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 11:06:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 11:06:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 11:06:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 11:06:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_close [2022-10-17 11:06:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_close [2022-10-17 11:06:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-17 11:06:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-17 11:06:25,938 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2022-10-17 11:06:25,938 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2022-10-17 11:06:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-10-17 11:06:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-10-17 11:06:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-10-17 11:06:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2022-10-17 11:06:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2022-10-17 11:06:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:06:25,939 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2022-10-17 11:06:25,939 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2022-10-17 11:06:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 11:06:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 11:06:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:06:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:06:26,709 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:06:26,715 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:06:27,661 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 11:06:34,578 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-17 11:06:35,041 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:06:35,068 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:06:35,068 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 11:06:35,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:35 BoogieIcfgContainer [2022-10-17 11:06:35,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:06:35,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:06:35,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:06:35,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:06:35,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:06:21" (1/3) ... [2022-10-17 11:06:35,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4717e2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:06:35, skipping insertion in model container [2022-10-17 11:06:35,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:06:25" (2/3) ... [2022-10-17 11:06:35,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4717e2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:06:35, skipping insertion in model container [2022-10-17 11:06:35,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:06:35" (3/3) ... [2022-10-17 11:06:35,085 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-usb-pegasus.cil.i [2022-10-17 11:06:35,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:06:35,103 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-10-17 11:06:35,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:06:35,218 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1545c582, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:06:35,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-10-17 11:06:35,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 1381 states, 1006 states have (on average 1.2992047713717694) internal successors, (1307), 1015 states have internal predecessors, (1307), 305 states have call successors, (305), 69 states have call predecessors, (305), 68 states have return successors, (299), 297 states have call predecessors, (299), 299 states have call successors, (299) [2022-10-17 11:06:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-17 11:06:35,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:35,269 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:35,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:06:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:35,275 INFO L85 PathProgramCache]: Analyzing trace with hash -439320581, now seen corresponding path program 1 times [2022-10-17 11:06:35,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:06:35,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440370121] [2022-10-17 11:06:35,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:35,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:06:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:06:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 11:06:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 11:06:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 11:06:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 11:06:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 11:06:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 11:06:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 11:06:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 11:06:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 11:06:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 11:06:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 11:06:36,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 11:06:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:37,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-17 11:06:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:37,040 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-10-17 11:06:37,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:06:37,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440370121] [2022-10-17 11:06:37,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440370121] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:37,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:37,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:06:37,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89106076] [2022-10-17 11:06:37,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:37,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:06:37,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:06:37,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:06:37,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:06:37,098 INFO L87 Difference]: Start difference. First operand has 1381 states, 1006 states have (on average 1.2992047713717694) internal successors, (1307), 1015 states have internal predecessors, (1307), 305 states have call successors, (305), 69 states have call predecessors, (305), 68 states have return successors, (299), 297 states have call predecessors, (299), 299 states have call successors, (299) Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-17 11:06:40,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:06:40,625 INFO L93 Difference]: Finished difference Result 4034 states and 5630 transitions. [2022-10-17 11:06:40,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:06:40,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 159 [2022-10-17 11:06:40,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:06:40,670 INFO L225 Difference]: With dead ends: 4034 [2022-10-17 11:06:40,670 INFO L226 Difference]: Without dead ends: 2671 [2022-10-17 11:06:40,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:06:40,689 INFO L413 NwaCegarLoop]: 2089 mSDtfsCounter, 2076 mSDsluCounter, 2510 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 4599 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:06:40,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 4599 Invalid, 1685 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [698 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-17 11:06:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2022-10-17 11:06:40,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2606. [2022-10-17 11:06:40,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 1914 states have (on average 1.2920585161964473) internal successors, (2473), 1931 states have internal predecessors, (2473), 559 states have call successors, (559), 132 states have call predecessors, (559), 131 states have return successors, (556), 552 states have call predecessors, (556), 556 states have call successors, (556) [2022-10-17 11:06:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 3588 transitions. [2022-10-17 11:06:40,949 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 3588 transitions. Word has length 159 [2022-10-17 11:06:40,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:06:40,951 INFO L495 AbstractCegarLoop]: Abstraction has 2606 states and 3588 transitions. [2022-10-17 11:06:40,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-10-17 11:06:40,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 3588 transitions. [2022-10-17 11:06:40,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-10-17 11:06:40,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:40,967 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:40,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:06:40,968 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:06:40,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:40,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1881027208, now seen corresponding path program 1 times [2022-10-17 11:06:40,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:06:40,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390904000] [2022-10-17 11:06:40,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:06:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:06:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 11:06:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 11:06:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 11:06:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 11:06:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 11:06:41,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 11:06:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 11:06:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 11:06:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 11:06:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 11:06:41,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 11:06:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 11:06:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:41,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-17 11:06:41,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-17 11:06:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-17 11:06:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-17 11:06:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-17 11:06:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-17 11:06:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-17 11:06:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:42,097 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-10-17 11:06:42,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:06:42,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390904000] [2022-10-17 11:06:42,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390904000] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:42,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:42,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:06:42,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374804995] [2022-10-17 11:06:42,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:42,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:06:42,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:06:42,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:06:42,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:06:42,110 INFO L87 Difference]: Start difference. First operand 2606 states and 3588 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-10-17 11:06:45,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:06:45,157 INFO L93 Difference]: Finished difference Result 5303 states and 7329 transitions. [2022-10-17 11:06:45,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:06:45,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 218 [2022-10-17 11:06:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:06:45,253 INFO L225 Difference]: With dead ends: 5303 [2022-10-17 11:06:45,253 INFO L226 Difference]: Without dead ends: 3941 [2022-10-17 11:06:45,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:06:45,262 INFO L413 NwaCegarLoop]: 3485 mSDtfsCounter, 1765 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 6947 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 425 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-17 11:06:45,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 6947 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [425 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-17 11:06:45,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2022-10-17 11:06:45,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3846. [2022-10-17 11:06:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 2830 states have (on average 1.2932862190812722) internal successors, (3660), 2854 states have internal predecessors, (3660), 819 states have call successors, (819), 196 states have call predecessors, (819), 195 states have return successors, (816), 810 states have call predecessors, (816), 816 states have call successors, (816) [2022-10-17 11:06:45,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 5295 transitions. [2022-10-17 11:06:45,503 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 5295 transitions. Word has length 218 [2022-10-17 11:06:45,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:06:45,507 INFO L495 AbstractCegarLoop]: Abstraction has 3846 states and 5295 transitions. [2022-10-17 11:06:45,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-10-17 11:06:45,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 5295 transitions. [2022-10-17 11:06:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-10-17 11:06:45,518 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:45,519 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 12, 12, 12, 12, 12, 12, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:45,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 11:06:45,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:06:45,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2015040714, now seen corresponding path program 1 times [2022-10-17 11:06:45,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:06:45,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775613164] [2022-10-17 11:06:45,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:45,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:06:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 11:06:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 11:06:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 11:06:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 11:06:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 11:06:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 11:06:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 11:06:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 11:06:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-10-17 11:06:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-17 11:06:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-10-17 11:06:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-10-17 11:06:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-17 11:06:46,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-10-17 11:06:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-10-17 11:06:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-10-17 11:06:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-17 11:06:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:06:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-10-17 11:06:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-10-17 11:06:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-10-17 11:06:47,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 790 trivial. 0 not checked. [2022-10-17 11:06:47,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:06:47,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775613164] [2022-10-17 11:06:47,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775613164] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:47,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:47,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:06:47,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544906024] [2022-10-17 11:06:47,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:47,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:06:47,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:06:47,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:06:47,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:06:47,077 INFO L87 Difference]: Start difference. First operand 3846 states and 5295 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)