./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI --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 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c --- 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-5e519f3 [2022-11-03 01:55:11,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:55:11,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:55:11,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:55:11,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:55:11,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:55:11,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:55:11,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:55:11,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:55:11,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:55:11,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:55:11,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:55:11,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:55:11,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:55:11,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:55:11,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:55:11,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:55:11,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:55:11,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:55:11,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:55:11,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:55:11,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:55:11,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:55:11,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:55:11,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:55:11,711 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:55:11,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:55:11,713 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:55:11,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:55:11,714 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:55:11,715 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:55:11,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:55:11,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:55:11,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:55:11,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:55:11,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:55:11,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:55:11,721 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:55:11,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:55:11,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:55:11,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:55:11,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:55:11,771 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:55:11,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:55:11,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:55:11,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:55:11,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:55:11,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:55:11,779 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:55:11,779 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:55:11,779 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:55:11,780 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:55:11,781 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:55:11,781 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:55:11,781 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:55:11,782 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:55:11,782 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:55:11,782 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:55:11,783 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:55:11,783 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:55:11,784 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:55:11,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:55:11,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:55:11,785 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:55:11,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:55:11,787 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:55:11,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:55:11,788 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:55:11,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:55:11,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:55:11,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:55:11,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:11,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:55:11,790 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:55:11,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:55:11,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:55:11,791 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:55:11,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:55:11,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:55:11,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:55:11,792 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_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c [2022-11-03 01:55:12,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:55:12,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:55:12,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:55:12,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:55:12,167 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:55:12,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2022-11-03 01:55:12,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/data/c85b9c90b/10a9a955687a49e9b3e81db35ec16391/FLAGb320170fe [2022-11-03 01:55:13,097 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:55:13,098 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2022-11-03 01:55:13,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/data/c85b9c90b/10a9a955687a49e9b3e81db35ec16391/FLAGb320170fe [2022-11-03 01:55:13,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/data/c85b9c90b/10a9a955687a49e9b3e81db35ec16391 [2022-11-03 01:55:13,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:55:13,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:55:13,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:13,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:55:13,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:55:13,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:13" (1/1) ... [2022-11-03 01:55:13,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39aef7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:13, skipping insertion in model container [2022-11-03 01:55:13,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:55:13" (1/1) ... [2022-11-03 01:55:13,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:55:13,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:55:14,980 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2022-11-03 01:55:15,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:15,119 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:55:15,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2022-11-03 01:55:15,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:55:15,843 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:55:15,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15 WrapperNode [2022-11-03 01:55:15,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:55:15,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:15,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:55:15,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:55:15,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:15,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,038 INFO L138 Inliner]: procedures = 142, calls = 839, calls flagged for inlining = 59, calls inlined = 40, statements flattened = 1657 [2022-11-03 01:55:16,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:55:16,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:55:16,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:55:16,040 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:55:16,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,168 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:55:16,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:55:16,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:55:16,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:55:16,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (1/1) ... [2022-11-03 01:55:16,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:55:16,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:16,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:55:16,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:55:16,303 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 01:55:16,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 01:55:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure catc_tx_run [2022-11-03 01:55:16,304 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_tx_run [2022-11-03 01:55:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:55:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-03 01:55:16,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-03 01:55:16,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:55:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:55:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:55:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 01:55:16,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 01:55:16,305 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:55:16,305 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:55:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_run [2022-11-03 01:55:16,306 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_run [2022-11-03 01:55:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure catc_get_drvinfo [2022-11-03 01:55:16,306 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_get_drvinfo [2022-11-03 01:55:16,306 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_msg [2022-11-03 01:55:16,306 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_msg [2022-11-03 01:55:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:55:16,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:55:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 01:55:16,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 01:55:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:55:16,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:55:16,307 INFO L130 BoogieDeclarations]: Found specification of procedure catc_multicast [2022-11-03 01:55:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_multicast [2022-11-03 01:55:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 01:55:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 01:55:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:55:16,308 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-03 01:55:16,308 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-03 01:55:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-11-03 01:55:16,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-11-03 01:55:16,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-03 01:55:16,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-03 01:55:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 01:55:16,310 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 01:55:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:55:16,310 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:55:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:55:16,310 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:55:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:55:16,311 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-03 01:55:16,311 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-03 01:55:16,312 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 01:55:16,312 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 01:55:16,312 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:55:16,313 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:55:16,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:55:16,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:55:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:55:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_async [2022-11-03 01:55:16,315 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_async [2022-11-03 01:55:16,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:55:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure catc_exit [2022-11-03 01:55:16,316 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_exit [2022-11-03 01:55:16,316 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 01:55:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 01:55:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 01:55:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 01:55:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 01:55:16,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 01:55:16,317 INFO L130 BoogieDeclarations]: Found specification of procedure catc_init [2022-11-03 01:55:16,318 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_init [2022-11-03 01:55:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-03 01:55:16,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-03 01:55:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:55:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:55:16,318 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 01:55:16,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 01:55:16,319 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 01:55:16,319 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 01:55:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:55:16,320 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:55:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 01:55:16,320 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 01:55:16,320 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:55:16,320 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:55:16,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-11-03 01:55:16,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-11-03 01:55:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:55:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-03 01:55:16,322 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-03 01:55:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:55:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 01:55:16,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:55:16,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:55:16,825 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:55:16,828 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:55:17,773 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-11-03 01:55:17,868 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 01:55:17,881 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 01:55:19,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2022-11-03 01:55:19,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2022-11-03 01:55:19,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-11-03 01:55:19,266 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-11-03 01:55:19,304 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:55:19,717 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:55:19,717 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-11-03 01:55:19,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:19 BoogieIcfgContainer [2022-11-03 01:55:19,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:55:19,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:55:19,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:55:19,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:55:19,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:55:13" (1/3) ... [2022-11-03 01:55:19,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d57a92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:19, skipping insertion in model container [2022-11-03 01:55:19,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:55:15" (2/3) ... [2022-11-03 01:55:19,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d57a92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:55:19, skipping insertion in model container [2022-11-03 01:55:19,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:55:19" (3/3) ... [2022-11-03 01:55:19,729 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-usb-catc.ko.cil.out.i [2022-11-03 01:55:19,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:55:19,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:55:19,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:55:19,820 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;@5654e494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:55:19,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:55:19,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 245 states have (on average 1.3142857142857143) internal successors, (322), 258 states have internal predecessors, (322), 122 states have call successors, (122), 36 states have call predecessors, (122), 35 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2022-11-03 01:55:19,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 01:55:19,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:19,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:19,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:19,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:19,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1823962436, now seen corresponding path program 1 times [2022-11-03 01:55:19,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:19,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557396708] [2022-11-03 01:55:19,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:19,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:55:20,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:20,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557396708] [2022-11-03 01:55:20,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557396708] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:20,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:20,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:20,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624675888] [2022-11-03 01:55:20,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:20,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:20,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:20,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:20,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:20,596 INFO L87 Difference]: Start difference. First operand has 404 states, 245 states have (on average 1.3142857142857143) internal successors, (322), 258 states have internal predecessors, (322), 122 states have call successors, (122), 36 states have call predecessors, (122), 35 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:55:22,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:25,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:25,194 INFO L93 Difference]: Finished difference Result 1079 states and 1538 transitions. [2022-11-03 01:55:25,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:25,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-03 01:55:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:25,227 INFO L225 Difference]: With dead ends: 1079 [2022-11-03 01:55:25,234 INFO L226 Difference]: Without dead ends: 675 [2022-11-03 01:55:25,247 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 [2022-11-03 01:55:25,251 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 371 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:25,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 995 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-03 01:55:25,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-11-03 01:55:25,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 671. [2022-11-03 01:55:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 412 states have (on average 1.2548543689320388) internal successors, (517), 426 states have internal predecessors, (517), 194 states have call successors, (194), 66 states have call predecessors, (194), 64 states have return successors, (191), 187 states have call predecessors, (191), 191 states have call successors, (191) [2022-11-03 01:55:25,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 902 transitions. [2022-11-03 01:55:25,388 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 902 transitions. Word has length 10 [2022-11-03 01:55:25,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:25,389 INFO L495 AbstractCegarLoop]: Abstraction has 671 states and 902 transitions. [2022-11-03 01:55:25,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:55:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 902 transitions. [2022-11-03 01:55:25,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 01:55:25,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:25,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:25,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:55:25,391 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:25,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:25,392 INFO L85 PathProgramCache]: Analyzing trace with hash 708001173, now seen corresponding path program 1 times [2022-11-03 01:55:25,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:25,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463302028] [2022-11-03 01:55:25,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:25,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:25,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:55:25,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:25,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463302028] [2022-11-03 01:55:25,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463302028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:25,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:25,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:25,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707826065] [2022-11-03 01:55:25,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:25,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:25,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:25,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:25,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:25,588 INFO L87 Difference]: Start difference. First operand 671 states and 902 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:55:27,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:28,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:28,646 INFO L93 Difference]: Finished difference Result 673 states and 903 transitions. [2022-11-03 01:55:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-03 01:55:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:28,654 INFO L225 Difference]: With dead ends: 673 [2022-11-03 01:55:28,654 INFO L226 Difference]: Without dead ends: 664 [2022-11-03 01:55:28,655 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 [2022-11-03 01:55:28,656 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 533 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:28,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 462 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 01:55:28,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2022-11-03 01:55:28,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 664. [2022-11-03 01:55:28,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 408 states have (on average 1.2426470588235294) internal successors, (507), 420 states have internal predecessors, (507), 192 states have call successors, (192), 65 states have call predecessors, (192), 63 states have return successors, (190), 186 states have call predecessors, (190), 190 states have call successors, (190) [2022-11-03 01:55:28,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 889 transitions. [2022-11-03 01:55:28,736 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 889 transitions. Word has length 11 [2022-11-03 01:55:28,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:28,736 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 889 transitions. [2022-11-03 01:55:28,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:55:28,737 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 889 transitions. [2022-11-03 01:55:28,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 01:55:28,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:28,741 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:28,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:55:28,741 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:28,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:28,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1131503975, now seen corresponding path program 1 times [2022-11-03 01:55:28,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:28,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427220733] [2022-11-03 01:55:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:28,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:29,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:55:29,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:29,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427220733] [2022-11-03 01:55:29,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427220733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:29,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:29,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:55:29,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813338214] [2022-11-03 01:55:29,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:29,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:55:29,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:29,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:55:29,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:55:29,070 INFO L87 Difference]: Start difference. First operand 664 states and 889 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:55:32,898 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 [] [2022-11-03 01:55:33,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:33,895 INFO L93 Difference]: Finished difference Result 1574 states and 2170 transitions. [2022-11-03 01:55:33,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:55:33,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-11-03 01:55:33,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:33,903 INFO L225 Difference]: With dead ends: 1574 [2022-11-03 01:55:33,903 INFO L226 Difference]: Without dead ends: 915 [2022-11-03 01:55:33,906 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 [2022-11-03 01:55:33,907 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 185 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:33,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 940 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2022-11-03 01:55:33,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-11-03 01:55:33,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 911. [2022-11-03 01:55:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 573 states have (on average 1.2722513089005236) internal successors, (729), 593 states have internal predecessors, (729), 274 states have call successors, (274), 65 states have call predecessors, (274), 63 states have return successors, (272), 266 states have call predecessors, (272), 272 states have call successors, (272) [2022-11-03 01:55:34,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1275 transitions. [2022-11-03 01:55:34,002 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1275 transitions. Word has length 35 [2022-11-03 01:55:34,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:34,008 INFO L495 AbstractCegarLoop]: Abstraction has 911 states and 1275 transitions. [2022-11-03 01:55:34,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 01:55:34,009 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1275 transitions. [2022-11-03 01:55:34,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-03 01:55:34,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:34,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:34,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:55:34,021 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:34,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:34,022 INFO L85 PathProgramCache]: Analyzing trace with hash 924748555, now seen corresponding path program 1 times [2022-11-03 01:55:34,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:34,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058684210] [2022-11-03 01:55:34,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:34,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:34,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:55:34,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:34,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058684210] [2022-11-03 01:55:34,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058684210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:34,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:34,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:55:34,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739353677] [2022-11-03 01:55:34,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:34,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:55:34,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:34,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:55:34,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:55:34,307 INFO L87 Difference]: Start difference. First operand 911 states and 1275 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 01:55:37,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:55:40,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:40,562 INFO L93 Difference]: Finished difference Result 1681 states and 2331 transitions. [2022-11-03 01:55:40,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:55:40,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2022-11-03 01:55:40,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:40,568 INFO L225 Difference]: With dead ends: 1681 [2022-11-03 01:55:40,568 INFO L226 Difference]: Without dead ends: 771 [2022-11-03 01:55:40,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:55:40,572 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 11 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:40,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1371 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-03 01:55:40,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2022-11-03 01:55:40,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 763. [2022-11-03 01:55:40,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 475 states have (on average 1.256842105263158) internal successors, (597), 491 states have internal predecessors, (597), 226 states have call successors, (226), 63 states have call predecessors, (226), 61 states have return successors, (224), 219 states have call predecessors, (224), 224 states have call successors, (224) [2022-11-03 01:55:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1047 transitions. [2022-11-03 01:55:40,618 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1047 transitions. Word has length 53 [2022-11-03 01:55:40,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:40,619 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 1047 transitions. [2022-11-03 01:55:40,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 01:55:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1047 transitions. [2022-11-03 01:55:40,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-03 01:55:40,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:40,622 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:40,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:55:40,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:40,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:40,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1617761461, now seen corresponding path program 1 times [2022-11-03 01:55:40,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:40,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051876419] [2022-11-03 01:55:40,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:40,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:41,609 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-03 01:55:41,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:41,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051876419] [2022-11-03 01:55:41,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051876419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:55:41,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:55:41,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 01:55:41,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155392524] [2022-11-03 01:55:41,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:55:41,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:55:41,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:55:41,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:55:41,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:55:41,612 INFO L87 Difference]: Start difference. First operand 763 states and 1047 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-03 01:55:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:55:51,417 INFO L93 Difference]: Finished difference Result 803 states and 1102 transitions. [2022-11-03 01:55:51,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:55:51,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2022-11-03 01:55:51,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:55:51,423 INFO L225 Difference]: With dead ends: 803 [2022-11-03 01:55:51,423 INFO L226 Difference]: Without dead ends: 765 [2022-11-03 01:55:51,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:55:51,425 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 4 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:55:51,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2568 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-03 01:55:51,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2022-11-03 01:55:51,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 763. [2022-11-03 01:55:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 475 states have (on average 1.2547368421052632) internal successors, (596), 491 states have internal predecessors, (596), 226 states have call successors, (226), 63 states have call predecessors, (226), 61 states have return successors, (224), 219 states have call predecessors, (224), 224 states have call successors, (224) [2022-11-03 01:55:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1046 transitions. [2022-11-03 01:55:51,468 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1046 transitions. Word has length 109 [2022-11-03 01:55:51,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:55:51,469 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 1046 transitions. [2022-11-03 01:55:51,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-03 01:55:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1046 transitions. [2022-11-03 01:55:51,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-03 01:55:51,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:55:51,472 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:55:51,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:55:51,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:55:51,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:55:51,473 INFO L85 PathProgramCache]: Analyzing trace with hash 855384837, now seen corresponding path program 1 times [2022-11-03 01:55:51,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:55:51,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952607483] [2022-11-03 01:55:51,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:51,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:55:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:56,579 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-03 01:55:56,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:55:56,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952607483] [2022-11-03 01:55:56,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952607483] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:56,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793574079] [2022-11-03 01:55:56,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:55:56,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:55:56,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:55:56,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:55:56,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_162d8b79-6c9d-4b51-b572-fe678252e029/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:55:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:55:57,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 1829 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-03 01:55:57,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:55:57,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 01:55:57,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 01:55:57,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2022-11-03 01:55:57,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2022-11-03 01:55:58,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 60 [2022-11-03 01:55:58,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 72 [2022-11-03 01:55:58,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 123 [2022-11-03 01:55:58,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 147 [2022-11-03 01:55:58,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 192 treesize of output 138 [2022-11-03 01:55:58,854 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 01:55:58,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 144 treesize of output 90 [2022-11-03 01:55:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-03 01:55:58,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:55:59,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793574079] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:55:59,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [334559878] [2022-11-03 01:55:59,607 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2022-11-03 01:55:59,607 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:55:59,611 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:55:59,617 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:55:59,618 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:56:01,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 121 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 61 [2022-11-03 01:56:01,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1774 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 266 [2022-11-03 01:56:02,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1055 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 201 [2022-11-03 01:56:19,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:20,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:20,023 INFO L244 Elim1Store]: Index analysis took 139 ms [2022-11-03 01:56:23,569 INFO L356 Elim1Store]: treesize reduction 1200, result has 25.4 percent of original size [2022-11-03 01:56:23,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 35 select indices, 35 select index equivalence classes, 532 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 96 case distinctions, treesize of input 189 treesize of output 533 [2022-11-03 01:56:24,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:24,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:24,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 32 select indices, 32 select index equivalence classes, 563 disjoint index pairs (out of 496 index pairs), introduced 32 new quantified variables, introduced 0 case distinctions, treesize of input 170 treesize of output 267 [2022-11-03 01:56:28,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 01:56:28,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 01:56:31,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:31,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:31,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 563 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-03 01:56:31,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:31,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-03 01:56:36,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:36,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:36,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 35 select indices, 35 select index equivalence classes, 595 disjoint index pairs (out of 595 index pairs), introduced 35 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 106 [2022-11-03 01:56:36,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:36,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:56:36,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 563 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-03 02:00:11,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:00:11,369 INFO L356 Elim1Store]: treesize reduction 159, result has 34.8 percent of original size [2022-11-03 02:00:11,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 94 [2022-11-03 02:00:11,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:00:11,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:00:11,520 INFO L356 Elim1Store]: treesize reduction 165, result has 28.9 percent of original size [2022-11-03 02:00:11,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 83 [2022-11-03 02:00:11,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:00:11,686 INFO L356 Elim1Store]: treesize reduction 147, result has 36.6 percent of original size [2022-11-03 02:00:11,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 101 [2022-11-03 02:00:14,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2022-11-03 02:00:14,054 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-03 02:00:14,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-11-03 02:00:14,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:00:14,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:00:14,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:00:15,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:00:15,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:00:15,491 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:00:15,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:00:16,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:00:16,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:00:16,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:00:16,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:00:16,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:01:45,755 INFO L197 IcfgInterpreter]: Interpreting procedure usb_free_urb with input of size 118 for LOIs [2022-11-03 02:01:46,169 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 125 for LOIs [2022-11-03 02:01:46,243 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 85 for LOIs [2022-11-03 02:01:46,257 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 116 for LOIs [2022-11-03 02:01:46,390 INFO L197 IcfgInterpreter]: Interpreting procedure catc_init with input of size 1466 for LOIs [2022-11-03 02:01:47,862 INFO L197 IcfgInterpreter]: Interpreting procedure usb_alloc_urb with input of size 134 for LOIs [2022-11-03 02:01:49,451 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undefined_pointer with input of size 118 for LOIs [2022-11-03 02:01:50,225 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 86 for LOIs [2022-11-03 02:01:50,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:01:50,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:01:50,305 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_priv with input of size 1401 for LOIs [2022-11-03 02:01:56,691 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:02:18,502 WARN L234 SmtUtils]: Spent 20.33s on a formula simplification that was a NOOP. DAG size: 1466 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:00,225 WARN L234 SmtUtils]: Spent 41.00s on a formula simplification. DAG size of input: 1519 DAG size of output: 1516 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:18,698 WARN L234 SmtUtils]: Spent 17.69s on a formula simplification that was a NOOP. DAG size: 1472 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:37,061 WARN L234 SmtUtils]: Spent 17.54s on a formula simplification that was a NOOP. DAG size: 1472 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:03:55,235 WARN L234 SmtUtils]: Spent 17.29s on a formula simplification that was a NOOP. DAG size: 1472 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:13,025 WARN L234 SmtUtils]: Spent 16.92s on a formula simplification that was a NOOP. DAG size: 1478 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:31,894 WARN L234 SmtUtils]: Spent 17.95s on a formula simplification that was a NOOP. DAG size: 1480 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:04:49,881 WARN L234 SmtUtils]: Spent 17.01s on a formula simplification that was a NOOP. DAG size: 1484 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:08,108 WARN L234 SmtUtils]: Spent 17.23s on a formula simplification that was a NOOP. DAG size: 1486 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:26,474 WARN L234 SmtUtils]: Spent 17.30s on a formula simplification that was a NOOP. DAG size: 1488 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:05:45,904 WARN L234 SmtUtils]: Spent 18.31s on a formula simplification that was a NOOP. DAG size: 1490 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:06,514 WARN L234 SmtUtils]: Spent 19.36s on a formula simplification that was a NOOP. DAG size: 1492 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:27,508 WARN L234 SmtUtils]: Spent 19.66s on a formula simplification that was a NOOP. DAG size: 1494 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:06:49,802 WARN L234 SmtUtils]: Spent 20.87s on a formula simplification that was a NOOP. DAG size: 1496 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:07:12,256 WARN L234 SmtUtils]: Spent 20.93s on a formula simplification that was a NOOP. DAG size: 1498 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:07:32,827 WARN L234 SmtUtils]: Spent 19.04s on a formula simplification that was a NOOP. DAG size: 1482 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:08:26,161 WARN L234 SmtUtils]: Spent 51.57s on a formula simplification. DAG size of input: 1710 DAG size of output: 1580 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)