./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/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_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/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_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/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 dc84e51e523cd7d1ed5e8ead538b5d3b5209e177ea77bffad6006fa4b66e1367 --- 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 14:04:36,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:04:36,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:04:36,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:04:36,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:04:36,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:04:36,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:04:36,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:04:36,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:04:36,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:04:36,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:04:36,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:04:36,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:04:36,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:04:36,757 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:04:36,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:04:36,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:04:36,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:04:36,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:04:36,764 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:04:36,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:04:36,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:04:36,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:04:36,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:04:36,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:04:36,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:04:36,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:04:36,792 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:04:36,793 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:04:36,794 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:04:36,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:04:36,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:04:36,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:04:36,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:04:36,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:04:36,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:04:36,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:04:36,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:04:36,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:04:36,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:04:36,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:04:36,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:04:36,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:04:36,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:04:36,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:04:36,864 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:04:36,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:04:36,865 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:04:36,865 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:04:36,866 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:04:36,866 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:04:36,866 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:04:36,867 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:04:36,868 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:04:36,868 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:04:36,868 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:04:36,869 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:04:36,869 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:04:36,869 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:04:36,870 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:04:36,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:04:36,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:04:36,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:04:36,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:04:36,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:04:36,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:04:36,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:04:36,873 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:04:36,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:04:36,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:04:36,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:04:36,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:36,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:04:36,876 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:04:36,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:04:36,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:04:36,876 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:04:36,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:04:36,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:04:36,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:04:36,877 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_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc84e51e523cd7d1ed5e8ead538b5d3b5209e177ea77bffad6006fa4b66e1367 [2022-11-23 14:04:37,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:04:37,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:04:37,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:04:37,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:04:37,318 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:04:37,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2022-11-23 14:04:40,661 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:04:41,712 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:04:41,713 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2022-11-23 14:04:41,812 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/data/2b776dafd/de469ff274a640a6aa9ebd967ca829cc/FLAGf419c4d7b [2022-11-23 14:04:41,834 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/data/2b776dafd/de469ff274a640a6aa9ebd967ca829cc [2022-11-23 14:04:41,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:04:41,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:04:41,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:41,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:04:41,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:04:41,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:41" (1/1) ... [2022-11-23 14:04:41,854 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4f6351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:41, skipping insertion in model container [2022-11-23 14:04:41,854 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:41" (1/1) ... [2022-11-23 14:04:41,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:04:42,281 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:04:51,633 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_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i[788125,788138] [2022-11-23 14:04:52,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:52,304 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:04:53,653 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_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i[788125,788138] [2022-11-23 14:04:53,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:54,207 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:04:54,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54 WrapperNode [2022-11-23 14:04:54,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:54,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:54,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:04:54,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:04:54,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:54,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:55,660 INFO L138 Inliner]: procedures = 819, calls = 13986, calls flagged for inlining = 321, calls inlined = 265, statements flattened = 26760 [2022-11-23 14:04:55,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:55,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:04:55,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:04:55,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:04:55,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:55,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:55,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:55,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:56,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:56,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:56,767 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:56,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:56,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:04:57,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:04:57,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:04:57,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:04:57,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2022-11-23 14:04:57,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:57,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:57,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:04:57,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f5e30ab-7978-4323-b0ad-cbbeefb41e04/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:04:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_lock [2022-11-23 14:04:57,077 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_lock [2022-11-23 14:04:57,077 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-23 14:04:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_compress [2022-11-23 14:04:57,078 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_compress [2022-11-23 14:04:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-23 14:04:57,078 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-23 14:04:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-23 14:04:57,078 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-23 14:04:57,078 INFO L130 BoogieDeclarations]: Found specification of procedure dst_link_failure [2022-11-23 14:04:57,078 INFO L138 BoogieDeclarations]: Found implementation of procedure dst_link_failure [2022-11-23 14:04:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 14:04:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 14:04:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-11-23 14:04:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-11-23 14:04:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-23 14:04:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-23 14:04:57,079 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 14:04:57,079 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 14:04:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_open [2022-11-23 14:04:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_open [2022-11-23 14:04:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_disconn_req [2022-11-23 14:04:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_disconn_req [2022-11-23 14:04:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-23 14:04:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-23 14:04:57,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_modem_info_mutex [2022-11-23 14:04:57,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_modem_info_mutex [2022-11-23 14:04:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-23 14:04:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-23 14:04:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 14:04:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 14:04:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_command [2022-11-23 14:04:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_command [2022-11-23 14:04:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_senddown [2022-11-23 14:04:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_senddown [2022-11-23 14:04:57,081 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-23 14:04:57,081 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-23 14:04:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_stat_callback [2022-11-23 14:04:57,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_stat_callback [2022-11-23 14:04:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:04:57,082 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:04:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_minor2drv [2022-11-23 14:04:57,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_minor2drv [2022-11-23 14:04:57,082 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_init [2022-11-23 14:04:57,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_init [2022-11-23 14:04:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-11-23 14:04:57,083 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-11-23 14:04:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 14:04:57,083 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 14:04:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unlock_driver [2022-11-23 14:04:57,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unlock_driver [2022-11-23 14:04:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-23 14:04:57,083 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-23 14:04:57,083 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2022-11-23 14:04:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2022-11-23 14:04:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_reset_regs [2022-11-23 14:04:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_reset_regs [2022-11-23 14:04:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-23 14:04:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-23 14:04:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-23 14:04:57,084 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-23 14:04:57,084 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2022-11-23 14:04:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2022-11-23 14:04:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:04:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-11-23 14:04:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-11-23 14:04:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_wake_queue [2022-11-23 14:04:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_wake_queue [2022-11-23 14:04:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-23 14:04:57,085 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-23 14:04:57,085 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 14:04:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 14:04:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_writebuf_skb_stub [2022-11-23 14:04:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_writebuf_skb_stub [2022-11-23 14:04:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unexclusive_channel [2022-11-23 14:04:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unexclusive_channel [2022-11-23 14:04:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_realrm [2022-11-23 14:04:57,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_realrm [2022-11-23 14:04:57,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-23 14:04:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-23 14:04:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:04:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-11-23 14:04:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-11-23 14:04:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:04:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:04:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:04:57,087 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:04:57,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:04:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:04:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:04:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 14:04:57,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 14:04:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-23 14:04:57,088 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-23 14:04:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_add_to_bundle [2022-11-23 14:04:57,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_add_to_bundle [2022-11-23 14:04:57,088 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-23 14:04:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-23 14:04:57,089 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_set_termios [2022-11-23 14:04:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_set_termios [2022-11-23 14:04:57,089 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_result [2022-11-23 14:04:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_result [2022-11-23 14:04:57,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-23 14:04:57,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-23 14:04:57,089 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 14:04:57,090 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 14:04:57,090 INFO L130 BoogieDeclarations]: Found specification of procedure set_global_features [2022-11-23 14:04:57,090 INFO L138 BoogieDeclarations]: Found implementation of procedure set_global_features [2022-11-23 14:04:57,090 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-23 14:04:57,090 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-23 14:04:57,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:04:57,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:04:57,090 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_disconn_ind [2022-11-23 14:04:57,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_disconn_ind [2022-11-23 14:04:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 14:04:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 14:04:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_write_room [2022-11-23 14:04:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_write_room [2022-11-23 14:04:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_timer_ctrl [2022-11-23 14:04:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_timer_ctrl [2022-11-23 14:04:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:04:57,091 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_info_update [2022-11-23 14:04:57,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_info_update [2022-11-23 14:04:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_lp_busy [2022-11-23 14:04:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_lp_busy [2022-11-23 14:04:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-23 14:04:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-23 14:04:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-23 14:04:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-23 14:04:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 14:04:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 14:04:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_receive [2022-11-23 14:04:57,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_receive [2022-11-23 14:04:57,092 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~int [2022-11-23 14:04:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~int [2022-11-23 14:04:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-11-23 14:04:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-11-23 14:04:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2022-11-23 14:04:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2022-11-23 14:04:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 14:04:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 14:04:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 14:04:57,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 14:04:57,093 INFO L130 BoogieDeclarations]: Found specification of procedure pdata_is_bad [2022-11-23 14:04:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pdata_is_bad [2022-11-23 14:04:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_unbind_channel [2022-11-23 14:04:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_unbind_channel [2022-11-23 14:04:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:04:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:04:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_get_free_channel [2022-11-23 14:04:57,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_get_free_channel [2022-11-23 14:04:57,094 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-23 14:04:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-23 14:04:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-23 14:04:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-23 14:04:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_reset_vpar [2022-11-23 14:04:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_reset_vpar [2022-11-23 14:04:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:04:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_open [2022-11-23 14:04:57,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_open [2022-11-23 14:04:57,095 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:04:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:04:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tiocmget [2022-11-23 14:04:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tiocmget [2022-11-23 14:04:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_handleDLEdown [2022-11-23 14:04:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_handleDLEdown [2022-11-23 14:04:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:04:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-23 14:04:57,096 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-23 14:04:57,096 INFO L130 BoogieDeclarations]: Found specification of procedure set_arg [2022-11-23 14:04:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure set_arg [2022-11-23 14:04:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-11-23 14:04:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-11-23 14:04:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_close [2022-11-23 14:04:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_close [2022-11-23 14:04:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-23 14:04:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-23 14:04:57,097 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_dial [2022-11-23 14:04:57,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_dial [2022-11-23 14:04:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2022-11-23 14:04:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2022-11-23 14:04:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_bind_channel [2022-11-23 14:04:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_bind_channel [2022-11-23 14:04:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2022-11-23 14:04:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-23 14:04:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-23 14:04:57,098 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-23 14:04:57,098 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-23 14:04:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-11-23 14:04:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-11-23 14:04:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-23 14:04:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-23 14:04:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_wildmat [2022-11-23 14:04:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_wildmat [2022-11-23 14:04:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_force_dial_lp [2022-11-23 14:04:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_force_dial_lp [2022-11-23 14:04:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 14:04:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 14:04:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_new [2022-11-23 14:04:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_new [2022-11-23 14:04:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_connect_ind [2022-11-23 14:04:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_connect_ind [2022-11-23 14:04:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_flush_buffer [2022-11-23 14:04:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_flush_buffer [2022-11-23 14:04:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unlock_drivers [2022-11-23 14:04:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unlock_drivers [2022-11-23 14:04:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-23 14:04:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-23 14:04:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isdn_devt [2022-11-23 14:04:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isdn_devt [2022-11-23 14:04:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure skb_realloc_headroom [2022-11-23 14:04:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_realloc_headroom [2022-11-23 14:04:57,101 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-11-23 14:04:57,101 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-11-23 14:04:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_mp_init [2022-11-23 14:04:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_mp_init [2022-11-23 14:04:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:04:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_all_eaz [2022-11-23 14:04:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_all_eaz [2022-11-23 14:04:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-23 14:04:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-23 14:04:57,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:04:57,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:04:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure illegal_state_warn [2022-11-23 14:04:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure illegal_state_warn [2022-11-23 14:04:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_skb_push [2022-11-23 14:04:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_skb_push [2022-11-23 14:04:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_dtmf_init [2022-11-23 14:04:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_dtmf_init [2022-11-23 14:04:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_ncarrier [2022-11-23 14:04:57,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_ncarrier [2022-11-23 14:04:57,103 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-11-23 14:04:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-11-23 14:04:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wait_until_sent [2022-11-23 14:04:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wait_until_sent [2022-11-23 14:04:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-23 14:04:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-23 14:04:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-23 14:04:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-23 14:04:57,104 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 14:04:57,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 14:04:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_put_dle_code [2022-11-23 14:04:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_put_dle_code [2022-11-23 14:04:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_ioctl [2022-11-23 14:04:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_ioctl [2022-11-23 14:04:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_writebuf_stub [2022-11-23 14:04:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_writebuf_stub [2022-11-23 14:04:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_dial_req [2022-11-23 14:04:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_dial_req [2022-11-23 14:04:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_write_super [2022-11-23 14:04:57,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_write_super [2022-11-23 14:04:57,105 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_cmd_ATA [2022-11-23 14:04:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_cmd_ATA [2022-11-23 14:04:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-11-23 14:04:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-11-23 14:04:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 14:04:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 14:04:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:04:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:04:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure tty_check_change [2022-11-23 14:04:57,106 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_check_change [2022-11-23 14:04:57,106 INFO L130 BoogieDeclarations]: Found specification of procedure tty_buffer_request_room [2022-11-23 14:04:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_buffer_request_room [2022-11-23 14:04:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:04:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:04:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-11-23 14:04:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-11-23 14:04:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_status_callback [2022-11-23 14:04:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_status_callback [2022-11-23 14:04:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-23 14:04:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-23 14:04:57,107 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_hangup [2022-11-23 14:04:57,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_hangup [2022-11-23 14:04:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_lp_disconnected [2022-11-23 14:04:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_lp_disconnected [2022-11-23 14:04:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_del [2022-11-23 14:04:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_del [2022-11-23 14:04:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:04:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:04:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-11-23 14:04:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-11-23 14:04:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_busy [2022-11-23 14:04:57,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_busy [2022-11-23 14:04:57,108 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_lock_drivers [2022-11-23 14:04:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_lock_drivers [2022-11-23 14:04:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_close [2022-11-23 14:04:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_close [2022-11-23 14:04:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_getnum [2022-11-23 14:04:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_getnum [2022-11-23 14:04:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-11-23 14:04:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-11-23 14:04:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-23 14:04:57,109 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-23 14:04:57,109 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_poll [2022-11-23 14:04:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_poll [2022-11-23 14:04:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:04:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:04:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_change_speed [2022-11-23 14:04:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_change_speed [2022-11-23 14:04:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_carrier_raised [2022-11-23 14:04:57,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_carrier_raised [2022-11-23 14:04:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:04:57,110 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_ulaw2alaw [2022-11-23 14:04:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_ulaw2alaw [2022-11-23 14:04:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-11-23 14:04:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-11-23 14:04:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-23 14:04:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-23 14:04:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_150 [2022-11-23 14:04:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_150 [2022-11-23 14:04:57,111 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 14:04:57,111 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 14:04:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_stop_queue [2022-11-23 14:04:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_stop_queue [2022-11-23 14:04:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isdn_devt [2022-11-23 14:04:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isdn_devt [2022-11-23 14:04:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_shutdown [2022-11-23 14:04:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_shutdown [2022-11-23 14:04:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-23 14:04:57,112 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-23 14:04:57,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:04:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_get_msnstr [2022-11-23 14:04:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_get_msnstr [2022-11-23 14:04:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_reset [2022-11-23 14:04:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_reset [2022-11-23 14:04:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 14:04:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 14:04:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_frame_log [2022-11-23 14:04:57,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_frame_log [2022-11-23 14:04:57,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:04:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_flush_chars [2022-11-23 14:04:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_flush_chars [2022-11-23 14:04:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_ciscohdlck_alloc_skb [2022-11-23 14:04:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_ciscohdlck_alloc_skb [2022-11-23 14:04:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_map_eaz2msn [2022-11-23 14:04:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_map_eaz2msn [2022-11-23 14:04:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure FlipBits [2022-11-23 14:04:57,114 INFO L138 BoogieDeclarations]: Found implementation of procedure FlipBits [2022-11-23 14:04:57,114 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_free [2022-11-23 14:04:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_free [2022-11-23 14:04:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_alaw2ulaw [2022-11-23 14:04:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_alaw2ulaw [2022-11-23 14:04:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_tx_timeout [2022-11-23 14:04:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_tx_timeout [2022-11-23 14:04:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:04:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:04:57,115 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_star [2022-11-23 14:04:57,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_star [2022-11-23 14:04:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2022-11-23 14:04:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2022-11-23 14:04:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-23 14:04:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-23 14:04:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_adpcm_init [2022-11-23 14:04:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_adpcm_init [2022-11-23 14:04:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_open [2022-11-23 14:04:57,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_open [2022-11-23 14:04:57,116 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_restart [2022-11-23 14:04:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_restart [2022-11-23 14:04:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-23 14:04:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-23 14:04:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-23 14:04:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-23 14:04:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_exit [2022-11-23 14:04:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_exit [2022-11-23 14:04:57,117 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_findif [2022-11-23 14:04:57,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_findif [2022-11-23 14:04:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_writebuf_skb [2022-11-23 14:04:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_writebuf_skb [2022-11-23 14:04:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:04:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:04:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-11-23 14:04:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-11-23 14:04:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tiocmset [2022-11-23 14:04:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tiocmset [2022-11-23 14:04:57,118 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_chars_in_buffer [2022-11-23 14:04:57,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_chars_in_buffer [2022-11-23 14:04:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:04:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:04:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_cleanup_xmit [2022-11-23 14:04:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_cleanup_xmit [2022-11-23 14:04:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_throttle [2022-11-23 14:04:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_throttle [2022-11-23 14:04:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_modem_info_mutex [2022-11-23 14:04:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_modem_info_mutex [2022-11-23 14:04:57,119 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_on_hook [2022-11-23 14:04:57,119 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_on_hook [2022-11-23 14:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_unthrottle [2022-11-23 14:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_unthrottle [2022-11-23 14:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 14:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 14:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_reset_profile [2022-11-23 14:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_reset_profile [2022-11-23 14:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_header_cache_update [2022-11-23 14:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_header_cache_update [2022-11-23 14:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-23 14:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-23 14:04:57,120 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_mp_free_skb [2022-11-23 14:04:57,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_mp_free_skb [2022-11-23 14:04:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-23 14:04:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-23 14:04:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 14:04:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 14:04:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_calc_usage [2022-11-23 14:04:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_calc_usage [2022-11-23 14:04:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-23 14:04:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-23 14:04:57,121 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-23 14:04:57,121 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-23 14:04:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:04:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:04:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:04:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_stat_callback [2022-11-23 14:04:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_stat_callback [2022-11-23 14:04:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_add_channels [2022-11-23 14:04:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_add_channels [2022-11-23 14:04:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_free_channel [2022-11-23 14:04:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_free_channel [2022-11-23 14:04:57,122 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_sync [2022-11-23 14:04:57,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_sync [2022-11-23 14:04:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure get_arg [2022-11-23 14:04:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure get_arg [2022-11-23 14:04:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_started [2022-11-23 14:04:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_started [2022-11-23 14:04:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_msncmp [2022-11-23 14:04:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_msncmp [2022-11-23 14:04:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 14:04:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 14:04:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_stat_callback [2022-11-23 14:04:57,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_stat_callback [2022-11-23 14:04:57,123 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 14:04:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 14:04:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_install [2022-11-23 14:04:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_install [2022-11-23 14:04:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2022-11-23 14:04:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2022-11-23 14:04:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2022-11-23 14:04:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2022-11-23 14:04:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 14:04:57,124 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 14:04:57,124 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_tlookup [2022-11-23 14:04:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_tlookup [2022-11-23 14:04:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_swap_usage [2022-11-23 14:04:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_swap_usage [2022-11-23 14:04:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_data_req [2022-11-23 14:04:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_data_req [2022-11-23 14:04:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_minor2chan [2022-11-23 14:04:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_minor2chan [2022-11-23 14:04:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:04:57,125 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_close [2022-11-23 14:04:57,125 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_close [2022-11-23 14:04:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-23 14:04:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-23 14:04:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_paranoia_check [2022-11-23 14:04:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_paranoia_check [2022-11-23 14:04:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-23 14:04:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-23 14:04:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_xmit [2022-11-23 14:04:57,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_xmit [2022-11-23 14:04:57,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-11-23 14:04:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~X~$Pointer$~TO~VOID [2022-11-23 14:04:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_find_icall [2022-11-23 14:04:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_find_icall [2022-11-23 14:04:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 14:04:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 14:04:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_linear2ulaw [2022-11-23 14:04:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_linear2ulaw [2022-11-23 14:04:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~$Pointer$~TO~int [2022-11-23 14:04:57,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~$Pointer$~TO~int [2022-11-23 14:04:57,127 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tint [2022-11-23 14:04:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tint [2022-11-23 14:04:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 14:04:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 14:04:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:04:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:04:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_hangup [2022-11-23 14:04:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_hangup [2022-11-23 14:04:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_connect_req [2022-11-23 14:04:57,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_connect_req [2022-11-23 14:04:57,128 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-11-23 14:04:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-11-23 14:04:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_at_cout [2022-11-23 14:04:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_at_cout [2022-11-23 14:04:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_ccp_xmit_reset [2022-11-23 14:04:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_ccp_xmit_reset [2022-11-23 14:04:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-23 14:04:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-23 14:04:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 14:04:57,129 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 14:04:57,129 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 14:04:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 14:04:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_write [2022-11-23 14:04:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_write [2022-11-23 14:04:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_ioctl [2022-11-23 14:04:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_ioctl [2022-11-23 14:04:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_open [2022-11-23 14:04:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_open [2022-11-23 14:04:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_isdn_mutex [2022-11-23 14:04:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_isdn_mutex [2022-11-23 14:04:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_ccp_reset_free_state [2022-11-23 14:04:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_ccp_reset_free_state [2022-11-23 14:04:57,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_isdn_mutex [2022-11-23 14:04:57,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_isdn_mutex [2022-11-23 14:04:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_unreachable [2022-11-23 14:04:57,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_unreachable [2022-11-23 14:04:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_getrev [2022-11-23 14:04:57,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_getrev [2022-11-23 14:04:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 14:04:57,131 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 14:04:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_swapbind [2022-11-23 14:04:57,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_swapbind [2022-11-23 14:04:57,131 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_new [2022-11-23 14:04:57,131 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_new [2022-11-23 14:04:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_bind [2022-11-23 14:04:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_bind [2022-11-23 14:04:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_rm_from_bundle [2022-11-23 14:04:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_rm_from_bundle [2022-11-23 14:04:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 14:04:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 14:04:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_get_stats [2022-11-23 14:04:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_get_stats [2022-11-23 14:04:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:04:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:04:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_softint [2022-11-23 14:04:57,132 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_softint [2022-11-23 14:04:57,132 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_close [2022-11-23 14:04:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_close [2022-11-23 14:04:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_check_ats [2022-11-23 14:04:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_check_ats [2022-11-23 14:04:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:04:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_fax_modem_result [2022-11-23 14:04:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_fax_modem_result [2022-11-23 14:04:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 14:04:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-11-23 14:04:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-11-23 14:04:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_hup [2022-11-23 14:04:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_hup [2022-11-23 14:04:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_dc2minor [2022-11-23 14:04:57,134 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_dc2minor [2022-11-23 14:04:59,476 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:04:59,482 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:04:59,913 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:06:35,493 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:06:45,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:06:45,851 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 14:06:45,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:45 BoogieIcfgContainer [2022-11-23 14:06:45,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:06:45,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:06:45,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:06:45,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:06:45,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:41" (1/3) ... [2022-11-23 14:06:45,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69562111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:45, skipping insertion in model container [2022-11-23 14:06:45,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (2/3) ... [2022-11-23 14:06:45,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69562111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:45, skipping insertion in model container [2022-11-23 14:06:45,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:45" (3/3) ... [2022-11-23 14:06:45,875 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2022-11-23 14:06:45,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:06:45,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:06:46,066 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:06:46,076 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;@41812335, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:06:46,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:06:46,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 6002 states, 3956 states have (on average 1.4388270980788676) internal successors, (5692), 4184 states have internal predecessors, (5692), 1787 states have call successors, (1787), 259 states have call predecessors, (1787), 258 states have return successors, (1778), 1697 states have call predecessors, (1778), 1778 states have call successors, (1778) [2022-11-23 14:06:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-23 14:06:46,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:06:46,143 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:46,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:06:46,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:06:46,151 INFO L85 PathProgramCache]: Analyzing trace with hash 214145947, now seen corresponding path program 1 times [2022-11-23 14:06:46,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:06:46,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801461245] [2022-11-23 14:06:46,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:06:46,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:06:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:06:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-23 14:06:47,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:06:47,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801461245] [2022-11-23 14:06:47,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801461245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:06:47,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:06:47,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:06:47,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468320259] [2022-11-23 14:06:47,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:06:47,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:06:47,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:06:47,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:06:47,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:06:47,878 INFO L87 Difference]: Start difference. First operand has 6002 states, 3956 states have (on average 1.4388270980788676) internal successors, (5692), 4184 states have internal predecessors, (5692), 1787 states have call successors, (1787), 259 states have call predecessors, (1787), 258 states have return successors, (1778), 1697 states have call predecessors, (1778), 1778 states have call successors, (1778) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-23 14:06:50,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:06:53,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:06:54,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:06:57,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:07:00,629 WARN L539 Checker$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 14:07:02,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:07,087 WARN L539 Checker$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 14:07:10,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:07:13,111 WARN L539 Checker$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 14:07:15,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:19,290 WARN L539 Checker$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 14:07:22,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:23,483 INFO L93 Difference]: Finished difference Result 16793 states and 26526 transitions. [2022-11-23 14:07:23,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:23,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2022-11-23 14:07:23,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:23,600 INFO L225 Difference]: With dead ends: 16793 [2022-11-23 14:07:23,600 INFO L226 Difference]: Without dead ends: 10791 [2022-11-23 14:07:23,689 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 14:07:23,694 INFO L413 NwaCegarLoop]: 9877 mSDtfsCounter, 7358 mSDsluCounter, 8415 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7367 SdHoareTripleChecker+Valid, 18292 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:23,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7367 Valid, 18292 Invalid, 1592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1579 Invalid, 9 Unknown, 0 Unchecked, 34.8s Time] [2022-11-23 14:07:23,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10791 states. [2022-11-23 14:07:24,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10791 to 10766. [2022-11-23 14:07:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10766 states, 7085 states have (on average 1.4334509527170078) internal successors, (10156), 7501 states have internal predecessors, (10156), 3191 states have call successors, (3191), 490 states have call predecessors, (3191), 489 states have return successors, (3185), 3015 states have call predecessors, (3185), 3179 states have call successors, (3185) [2022-11-23 14:07:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10766 states to 10766 states and 16532 transitions. [2022-11-23 14:07:24,693 INFO L78 Accepts]: Start accepts. Automaton has 10766 states and 16532 transitions. Word has length 138 [2022-11-23 14:07:24,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:24,697 INFO L495 AbstractCegarLoop]: Abstraction has 10766 states and 16532 transitions. [2022-11-23 14:07:24,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-23 14:07:24,698 INFO L276 IsEmpty]: Start isEmpty. Operand 10766 states and 16532 transitions. [2022-11-23 14:07:24,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-23 14:07:24,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:24,714 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:24,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:07:24,715 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:24,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:24,715 INFO L85 PathProgramCache]: Analyzing trace with hash 850937134, now seen corresponding path program 1 times [2022-11-23 14:07:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:24,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583895892] [2022-11-23 14:07:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:24,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:25,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:07:25,790 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-23 14:07:25,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:07:25,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583895892] [2022-11-23 14:07:25,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583895892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:07:25,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:07:25,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:07:25,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451945301] [2022-11-23 14:07:25,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:07:25,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:07:25,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:07:25,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:07:25,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:07:25,797 INFO L87 Difference]: Start difference. First operand 10766 states and 16532 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:07:27,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:31,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:35,601 WARN L539 Checker$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 14:07:38,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:41,584 WARN L539 Checker$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 14:07:44,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:48,589 WARN L539 Checker$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 14:07:50,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:57,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:07:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:07:57,903 INFO L93 Difference]: Finished difference Result 21437 states and 32943 transitions. [2022-11-23 14:07:57,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:07:57,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2022-11-23 14:07:57,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:07:58,060 INFO L225 Difference]: With dead ends: 21437 [2022-11-23 14:07:58,060 INFO L226 Difference]: Without dead ends: 21434 [2022-11-23 14:07:58,073 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 14:07:58,074 INFO L413 NwaCegarLoop]: 10223 mSDtfsCounter, 9070 mSDsluCounter, 8384 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9091 SdHoareTripleChecker+Valid, 18607 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:07:58,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9091 Valid, 18607 Invalid, 1563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1553 Invalid, 9 Unknown, 0 Unchecked, 31.4s Time] [2022-11-23 14:07:58,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21434 states. [2022-11-23 14:07:59,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21434 to 21417. [2022-11-23 14:07:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21417 states, 14106 states have (on average 1.434141500070892) internal successors, (20230), 14931 states have internal predecessors, (20230), 6334 states have call successors, (6334), 977 states have call predecessors, (6334), 976 states have return successors, (6358), 5989 states have call predecessors, (6358), 6322 states have call successors, (6358) [2022-11-23 14:07:59,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21417 states to 21417 states and 32922 transitions. [2022-11-23 14:07:59,289 INFO L78 Accepts]: Start accepts. Automaton has 21417 states and 32922 transitions. Word has length 144 [2022-11-23 14:07:59,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:07:59,292 INFO L495 AbstractCegarLoop]: Abstraction has 21417 states and 32922 transitions. [2022-11-23 14:07:59,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:07:59,292 INFO L276 IsEmpty]: Start isEmpty. Operand 21417 states and 32922 transitions. [2022-11-23 14:07:59,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-23 14:07:59,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:07:59,298 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:59,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:07:59,299 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:07:59,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:07:59,299 INFO L85 PathProgramCache]: Analyzing trace with hash 606407536, now seen corresponding path program 1 times [2022-11-23 14:07:59,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:07:59,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744344765] [2022-11-23 14:07:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:07:59,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:07:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-23 14:08:00,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:00,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744344765] [2022-11-23 14:08:00,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744344765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:00,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:00,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:00,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262600994] [2022-11-23 14:08:00,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:00,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:00,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:00,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:00,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:00,367 INFO L87 Difference]: Start difference. First operand 21417 states and 32922 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:08:02,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:05,426 WARN L539 Checker$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 14:08:10,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:08:15,169 WARN L539 Checker$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 14:08:17,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:20,352 WARN L539 Checker$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 14:08:23,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:25,329 WARN L539 Checker$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 14:08:28,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:32,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:33,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:08:33,924 INFO L93 Difference]: Finished difference Result 35235 states and 53786 transitions. [2022-11-23 14:08:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:08:33,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 145 [2022-11-23 14:08:33,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:08:34,203 INFO L225 Difference]: With dead ends: 35235 [2022-11-23 14:08:34,203 INFO L226 Difference]: Without dead ends: 35231 [2022-11-23 14:08:34,259 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 14:08:34,262 INFO L413 NwaCegarLoop]: 9929 mSDtfsCounter, 7300 mSDsluCounter, 8357 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7308 SdHoareTripleChecker+Valid, 18286 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:08:34,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7308 Valid, 18286 Invalid, 1566 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1554 Invalid, 8 Unknown, 0 Unchecked, 32.5s Time] [2022-11-23 14:08:34,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35231 states. [2022-11-23 14:08:36,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35231 to 35221. [2022-11-23 14:08:36,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35221 states, 23088 states have (on average 1.4283610533610533) internal successors, (32978), 24501 states have internal predecessors, (32978), 10363 states have call successors, (10363), 1778 states have call predecessors, (10363), 1769 states have return successors, (10426), 9762 states have call predecessors, (10426), 10351 states have call successors, (10426) [2022-11-23 14:08:37,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35221 states to 35221 states and 53767 transitions. [2022-11-23 14:08:37,143 INFO L78 Accepts]: Start accepts. Automaton has 35221 states and 53767 transitions. Word has length 145 [2022-11-23 14:08:37,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:08:37,144 INFO L495 AbstractCegarLoop]: Abstraction has 35221 states and 53767 transitions. [2022-11-23 14:08:37,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:08:37,144 INFO L276 IsEmpty]: Start isEmpty. Operand 35221 states and 53767 transitions. [2022-11-23 14:08:37,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-23 14:08:37,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:08:37,148 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:37,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:08:37,149 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:08:37,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:08:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1615929457, now seen corresponding path program 1 times [2022-11-23 14:08:37,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:08:37,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235544886] [2022-11-23 14:08:37,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:08:37,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:08:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:08:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-23 14:08:38,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:08:38,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235544886] [2022-11-23 14:08:38,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235544886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:08:38,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:08:38,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:08:38,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066759580] [2022-11-23 14:08:38,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:08:38,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:08:38,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:08:38,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:08:38,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:08:38,603 INFO L87 Difference]: Start difference. First operand 35221 states and 53767 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:08:40,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:43,673 WARN L539 Checker$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 14:08:48,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:08:51,623 WARN L539 Checker$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 14:08:54,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:08:57,506 WARN L539 Checker$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 14:09:01,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:03,744 WARN L539 Checker$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 14:09:11,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:12,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:12,862 INFO L93 Difference]: Finished difference Result 35242 states and 53789 transitions. [2022-11-23 14:09:12,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:09:12,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 146 [2022-11-23 14:09:12,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:13,104 INFO L225 Difference]: With dead ends: 35242 [2022-11-23 14:09:13,105 INFO L226 Difference]: Without dead ends: 35239 [2022-11-23 14:09:13,141 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 14:09:13,142 INFO L413 NwaCegarLoop]: 10223 mSDtfsCounter, 9062 mSDsluCounter, 8390 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9083 SdHoareTripleChecker+Valid, 18613 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:13,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9083 Valid, 18613 Invalid, 1563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1553 Invalid, 9 Unknown, 0 Unchecked, 33.1s Time] [2022-11-23 14:09:13,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35239 states. [2022-11-23 14:09:15,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35239 to 35223. [2022-11-23 14:09:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35223 states, 23090 states have (on average 1.4283239497618017) internal successors, (32980), 24503 states have internal predecessors, (32980), 10363 states have call successors, (10363), 1778 states have call predecessors, (10363), 1769 states have return successors, (10426), 9762 states have call predecessors, (10426), 10351 states have call successors, (10426) [2022-11-23 14:09:15,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35223 states to 35223 states and 53769 transitions. [2022-11-23 14:09:15,493 INFO L78 Accepts]: Start accepts. Automaton has 35223 states and 53769 transitions. Word has length 146 [2022-11-23 14:09:15,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:15,496 INFO L495 AbstractCegarLoop]: Abstraction has 35223 states and 53769 transitions. [2022-11-23 14:09:15,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:09:15,496 INFO L276 IsEmpty]: Start isEmpty. Operand 35223 states and 53769 transitions. [2022-11-23 14:09:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-23 14:09:15,504 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:15,505 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:09:15,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:09:15,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:15,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:15,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1448624493, now seen corresponding path program 1 times [2022-11-23 14:09:15,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:15,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936144935] [2022-11-23 14:09:15,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:15,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:09:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-23 14:09:17,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:09:17,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936144935] [2022-11-23 14:09:17,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936144935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:09:17,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:09:17,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:09:17,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326160113] [2022-11-23 14:09:17,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:09:17,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:09:17,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:09:17,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:09:17,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:09:17,076 INFO L87 Difference]: Start difference. First operand 35223 states and 53769 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:09:19,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:22,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:23,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:28,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:09:33,288 WARN L539 Checker$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 14:09:35,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:38,399 WARN L539 Checker$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 14:09:41,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:43,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:51,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:09:53,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:09:53,150 INFO L93 Difference]: Finished difference Result 105389 states and 164490 transitions. [2022-11-23 14:09:53,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:09:53,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2022-11-23 14:09:53,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:09:53,846 INFO L225 Difference]: With dead ends: 105389 [2022-11-23 14:09:53,846 INFO L226 Difference]: Without dead ends: 70189 [2022-11-23 14:09:54,292 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 14:09:54,292 INFO L413 NwaCegarLoop]: 10671 mSDtfsCounter, 9309 mSDsluCounter, 8647 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9318 SdHoareTripleChecker+Valid, 19318 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:09:54,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9318 Valid, 19318 Invalid, 1592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1578 Invalid, 9 Unknown, 0 Unchecked, 33.3s Time] [2022-11-23 14:09:54,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70189 states. [2022-11-23 14:09:57,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70189 to 70148. [2022-11-23 14:09:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70148 states, 46016 states have (on average 1.4287856397774688) internal successors, (65747), 48830 states have internal predecessors, (65747), 20617 states have call successors, (20617), 3540 states have call predecessors, (20617), 3514 states have return successors, (24304), 19406 states have call predecessors, (24304), 20604 states have call successors, (24304) [2022-11-23 14:09:59,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70148 states to 70148 states and 110668 transitions. [2022-11-23 14:09:59,176 INFO L78 Accepts]: Start accepts. Automaton has 70148 states and 110668 transitions. Word has length 147 [2022-11-23 14:09:59,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:09:59,177 INFO L495 AbstractCegarLoop]: Abstraction has 70148 states and 110668 transitions. [2022-11-23 14:09:59,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:09:59,178 INFO L276 IsEmpty]: Start isEmpty. Operand 70148 states and 110668 transitions. [2022-11-23 14:09:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-23 14:09:59,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:09:59,183 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:09:59,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:09:59,183 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:09:59,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:09:59,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1960511564, now seen corresponding path program 1 times [2022-11-23 14:09:59,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:09:59,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599545708] [2022-11-23 14:09:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:09:59,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:09:59,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:00,450 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-23 14:10:00,451 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:00,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599545708] [2022-11-23 14:10:00,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599545708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:00,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:00,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:00,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433518043] [2022-11-23 14:10:00,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:00,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:00,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:00,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:00,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:00,453 INFO L87 Difference]: Start difference. First operand 70148 states and 110668 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:10:01,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:04,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:10,423 WARN L539 Checker$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 14:10:13,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:17,250 WARN L539 Checker$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 14:10:19,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:24,719 WARN L539 Checker$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 14:10:26,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:36,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:10:38,604 INFO L93 Difference]: Finished difference Result 129608 states and 203678 transitions. [2022-11-23 14:10:38,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:10:38,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 148 [2022-11-23 14:10:38,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:10:39,863 INFO L225 Difference]: With dead ends: 129608 [2022-11-23 14:10:39,863 INFO L226 Difference]: Without dead ends: 129604 [2022-11-23 14:10:39,967 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 14:10:39,968 INFO L413 NwaCegarLoop]: 10536 mSDtfsCounter, 8847 mSDsluCounter, 8372 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 4 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8868 SdHoareTripleChecker+Valid, 18908 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:10:39,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8868 Valid, 18908 Invalid, 1600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1588 Invalid, 8 Unknown, 0 Unchecked, 33.7s Time] [2022-11-23 14:10:40,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129604 states. [2022-11-23 14:10:45,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129604 to 129583. [2022-11-23 14:10:46,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129583 states, 84923 states have (on average 1.4268808214500195) internal successors, (121175), 90125 states have internal predecessors, (121175), 37861 states have call successors, (37861), 6836 states have call predecessors, (37861), 6798 states have return successors, (44612), 35650 states have call predecessors, (44612), 37848 states have call successors, (44612) [2022-11-23 14:10:47,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129583 states to 129583 states and 203648 transitions. [2022-11-23 14:10:47,594 INFO L78 Accepts]: Start accepts. Automaton has 129583 states and 203648 transitions. Word has length 148 [2022-11-23 14:10:47,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:10:47,595 INFO L495 AbstractCegarLoop]: Abstraction has 129583 states and 203648 transitions. [2022-11-23 14:10:47,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:10:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 129583 states and 203648 transitions. [2022-11-23 14:10:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-23 14:10:47,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:10:47,602 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:10:47,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:10:47,602 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:10:47,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:10:47,603 INFO L85 PathProgramCache]: Analyzing trace with hash -649136714, now seen corresponding path program 1 times [2022-11-23 14:10:47,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:10:47,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786335731] [2022-11-23 14:10:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:10:47,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:10:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:10:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-23 14:10:49,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:10:49,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786335731] [2022-11-23 14:10:49,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786335731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:10:49,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:10:49,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:10:49,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419856951] [2022-11-23 14:10:49,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:10:49,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:10:49,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:10:49,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:10:49,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:10:49,048 INFO L87 Difference]: Start difference. First operand 129583 states and 203648 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:10:51,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:10:54,116 WARN L539 Checker$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 14:10:59,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:11:02,325 WARN L539 Checker$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 14:11:04,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:07,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:10,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:14,520 WARN L539 Checker$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 14:11:16,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:19,126 WARN L539 Checker$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 14:11:23,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:29,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:31,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:11:31,250 INFO L93 Difference]: Finished difference Result 130017 states and 204107 transitions. [2022-11-23 14:11:31,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:11:31,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 149 [2022-11-23 14:11:31,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:11:32,300 INFO L225 Difference]: With dead ends: 130017 [2022-11-23 14:11:32,300 INFO L226 Difference]: Without dead ends: 129969 [2022-11-23 14:11:32,453 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 14:11:32,454 INFO L413 NwaCegarLoop]: 10229 mSDtfsCounter, 9059 mSDsluCounter, 8399 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9076 SdHoareTripleChecker+Valid, 18628 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:11:32,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9076 Valid, 18628 Invalid, 1563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1554 Invalid, 9 Unknown, 0 Unchecked, 38.1s Time] [2022-11-23 14:11:32,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129969 states. [2022-11-23 14:11:39,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129969 to 129935. [2022-11-23 14:11:39,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129935 states, 85114 states have (on average 1.4262753483563222) internal successors, (121396), 90333 states have internal predecessors, (121396), 37928 states have call successors, (37928), 6926 states have call predecessors, (37928), 6892 states have return successors, (44679), 35712 states have call predecessors, (44679), 37915 states have call successors, (44679) [2022-11-23 14:11:40,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129935 states to 129935 states and 204003 transitions. [2022-11-23 14:11:40,595 INFO L78 Accepts]: Start accepts. Automaton has 129935 states and 204003 transitions. Word has length 149 [2022-11-23 14:11:40,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:11:40,595 INFO L495 AbstractCegarLoop]: Abstraction has 129935 states and 204003 transitions. [2022-11-23 14:11:40,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:11:40,596 INFO L276 IsEmpty]: Start isEmpty. Operand 129935 states and 204003 transitions. [2022-11-23 14:11:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-23 14:11:40,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:40,610 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:11:40,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:11:40,611 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:11:40,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:40,611 INFO L85 PathProgramCache]: Analyzing trace with hash 381431941, now seen corresponding path program 1 times [2022-11-23 14:11:40,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:40,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485676594] [2022-11-23 14:11:40,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:40,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:11:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:42,263 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-11-23 14:11:42,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:11:42,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485676594] [2022-11-23 14:11:42,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485676594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:11:42,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:11:42,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:11:42,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907139933] [2022-11-23 14:11:42,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:11:42,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:11:42,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:11:42,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:11:42,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:11:42,265 INFO L87 Difference]: Start difference. First operand 129935 states and 204003 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:11:44,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:47,503 WARN L539 Checker$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 14:11:49,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:11:54,356 WARN L539 Checker$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 14:11:56,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:12:01,272 WARN L539 Checker$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 14:12:05,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:12:08,016 WARN L539 Checker$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 14:12:15,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:12:25,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []