./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/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_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/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_85cceec2-27fc-4012-9041-a12b20e79f94/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 ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b --- 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 01:38:27,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:38:27,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:38:27,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:38:27,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:38:27,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:38:27,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:38:27,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:38:27,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:38:27,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:38:27,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:38:27,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:38:27,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:38:27,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:38:27,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:38:27,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:38:27,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:38:27,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:38:27,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:38:27,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:38:27,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:38:27,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:38:27,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:38:27,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:38:27,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:38:27,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:38:27,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:38:27,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:38:27,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:38:27,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:38:27,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:38:27,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:38:27,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:38:27,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:38:27,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:38:27,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:38:27,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:38:27,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:38:27,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:38:27,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:38:27,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:38:27,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:38:27,296 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:38:27,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:38:27,297 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:38:27,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:38:27,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:38:27,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:38:27,299 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:38:27,300 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:38:27,300 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:38:27,300 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:38:27,302 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:38:27,302 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:38:27,302 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:38:27,303 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:38:27,303 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:38:27,304 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:38:27,304 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:38:27,304 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:38:27,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:38:27,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:38:27,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:38:27,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:38:27,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:38:27,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:38:27,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:38:27,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:38:27,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:38:27,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:38:27,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:38:27,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:38:27,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:38:27,309 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:38:27,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:38:27,309 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:38:27,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:38:27,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:38:27,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:38:27,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:38:27,310 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_85cceec2-27fc-4012-9041-a12b20e79f94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b [2022-11-03 01:38:27,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:38:27,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:38:27,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:38:27,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:38:27,716 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:38:27,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-11-03 01:38:27,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data/528524d56/43b2e7cf49594039a84185b51e62dc25/FLAG8e9ab2a17 [2022-11-03 01:38:28,695 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:38:28,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-11-03 01:38:28,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data/528524d56/43b2e7cf49594039a84185b51e62dc25/FLAG8e9ab2a17 [2022-11-03 01:38:29,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data/528524d56/43b2e7cf49594039a84185b51e62dc25 [2022-11-03 01:38:29,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:38:29,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:38:29,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:38:29,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:38:29,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:38:29,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:38:29" (1/1) ... [2022-11-03 01:38:29,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31066767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:29, skipping insertion in model container [2022-11-03 01:38:29,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:38:29" (1/1) ... [2022-11-03 01:38:29,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:38:29,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:38:30,303 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_85cceec2-27fc-4012-9041-a12b20e79f94/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2022-11-03 01:38:30,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:38:30,669 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:38:30,879 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_85cceec2-27fc-4012-9041-a12b20e79f94/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2022-11-03 01:38:30,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:38:31,020 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:38:31,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31 WrapperNode [2022-11-03 01:38:31,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:38:31,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:38:31,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:38:31,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:38:31,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,159 INFO L138 Inliner]: procedures = 101, calls = 368, calls flagged for inlining = 41, calls inlined = 38, statements flattened = 961 [2022-11-03 01:38:31,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:38:31,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:38:31,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:38:31,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:38:31,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,303 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:38:31,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:38:31,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:38:31,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:38:31,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (1/1) ... [2022-11-03 01:38:31,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:38:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:38:31,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:38:31,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:38:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:38:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:38:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:38:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:38:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:38:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:38:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-03 01:38:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-03 01:38:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 01:38:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 01:38:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:38:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:38:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-03 01:38:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-03 01:38:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:38:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:38:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:38:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-03 01:38:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-03 01:38:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:38:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:38:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:38:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:38:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:38:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:38:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:38:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:38:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:38:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:38:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:38:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_tx_fixup [2022-11-03 01:38:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup [2022-11-03 01:38:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_rx_fixup [2022-11-03 01:38:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup [2022-11-03 01:38:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:38:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:38:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:38:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:38:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:38:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:38:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:38:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:38:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:38:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:38:31,840 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:38:31,842 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:38:31,961 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:38:34,534 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:38:34,857 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:38:34,858 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:38:34,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:38:34 BoogieIcfgContainer [2022-11-03 01:38:34,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:38:34,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:38:34,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:38:34,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:38:34,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:38:29" (1/3) ... [2022-11-03 01:38:34,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb73634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:38:34, skipping insertion in model container [2022-11-03 01:38:34,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:31" (2/3) ... [2022-11-03 01:38:34,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb73634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:38:34, skipping insertion in model container [2022-11-03 01:38:34,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:38:34" (3/3) ... [2022-11-03 01:38:34,880 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-11-03 01:38:34,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:38:34,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:38:35,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:38:35,016 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;@6a161969, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:38:35,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:38:35,024 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 125 states have internal predecessors, (175), 36 states have call successors, (36), 14 states have call predecessors, (36), 13 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-03 01:38:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-03 01:38:35,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:35,039 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 01:38:35,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:35,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:35,049 INFO L85 PathProgramCache]: Analyzing trace with hash 188955179, now seen corresponding path program 1 times [2022-11-03 01:38:35,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:35,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162380798] [2022-11-03 01:38:35,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:35,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:35,791 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-03 01:38:35,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:35,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162380798] [2022-11-03 01:38:35,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162380798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:35,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:35,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:38:35,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272902983] [2022-11-03 01:38:35,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:35,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:38:35,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:35,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:38:35,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:35,840 INFO L87 Difference]: Start difference. First operand has 170 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 125 states have internal predecessors, (175), 36 states have call successors, (36), 14 states have call predecessors, (36), 13 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 01:38:38,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:38,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:38,553 INFO L93 Difference]: Finished difference Result 470 states and 684 transitions. [2022-11-03 01:38:38,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:38:38,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2022-11-03 01:38:38,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:38,579 INFO L225 Difference]: With dead ends: 470 [2022-11-03 01:38:38,579 INFO L226 Difference]: Without dead ends: 300 [2022-11-03 01:38:38,584 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 01:38:38,588 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 202 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:38,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 429 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-03 01:38:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-11-03 01:38:38,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2022-11-03 01:38:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 220 states have (on average 1.4227272727272726) internal successors, (313), 220 states have internal predecessors, (313), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-11-03 01:38:38,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 424 transitions. [2022-11-03 01:38:38,724 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 424 transitions. Word has length 33 [2022-11-03 01:38:38,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:38,725 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 424 transitions. [2022-11-03 01:38:38,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 01:38:38,728 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 424 transitions. [2022-11-03 01:38:38,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 01:38:38,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:38,738 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-03 01:38:38,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:38:38,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:38,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:38,741 INFO L85 PathProgramCache]: Analyzing trace with hash -302558757, now seen corresponding path program 1 times [2022-11-03 01:38:38,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:38,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114353576] [2022-11-03 01:38:38,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:38,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 01:38:39,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:39,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114353576] [2022-11-03 01:38:39,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114353576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:39,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:39,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:38:39,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305765540] [2022-11-03 01:38:39,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:39,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:38:39,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:39,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:38:39,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:38:39,328 INFO L87 Difference]: Start difference. First operand 300 states and 424 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 01:38:40,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:41,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:42,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:42,123 INFO L93 Difference]: Finished difference Result 588 states and 838 transitions. [2022-11-03 01:38:42,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:38:42,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2022-11-03 01:38:42,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:42,138 INFO L225 Difference]: With dead ends: 588 [2022-11-03 01:38:42,139 INFO L226 Difference]: Without dead ends: 583 [2022-11-03 01:38:42,143 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 01:38:42,145 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 208 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:42,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 640 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 01:38:42,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2022-11-03 01:38:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2022-11-03 01:38:42,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 428 states have (on average 1.425233644859813) internal successors, (610), 428 states have internal predecessors, (610), 107 states have call successors, (107), 46 states have call predecessors, (107), 45 states have return successors, (112), 106 states have call predecessors, (112), 106 states have call successors, (112) [2022-11-03 01:38:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 829 transitions. [2022-11-03 01:38:42,255 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 829 transitions. Word has length 42 [2022-11-03 01:38:42,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:42,256 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 829 transitions. [2022-11-03 01:38:42,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 01:38:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 829 transitions. [2022-11-03 01:38:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-03 01:38:42,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:42,274 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:42,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:38:42,275 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:42,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:42,288 INFO L85 PathProgramCache]: Analyzing trace with hash -465428346, now seen corresponding path program 1 times [2022-11-03 01:38:42,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:42,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956826942] [2022-11-03 01:38:42,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:42,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-11-03 01:38:42,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:42,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956826942] [2022-11-03 01:38:42,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956826942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:42,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:42,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:38:42,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751207144] [2022-11-03 01:38:42,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:42,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:38:42,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:42,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:38:42,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:42,580 INFO L87 Difference]: Start difference. First operand 581 states and 829 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:38:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:43,606 INFO L93 Difference]: Finished difference Result 1307 states and 1868 transitions. [2022-11-03 01:38:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:38:43,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2022-11-03 01:38:43,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:43,612 INFO L225 Difference]: With dead ends: 1307 [2022-11-03 01:38:43,613 INFO L226 Difference]: Without dead ends: 738 [2022-11-03 01:38:43,616 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 01:38:43,617 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 75 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:43,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 371 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-03 01:38:43,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2022-11-03 01:38:43,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 733. [2022-11-03 01:38:43,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 557 states have (on average 1.4398563734290843) internal successors, (802), 557 states have internal predecessors, (802), 120 states have call successors, (120), 56 states have call predecessors, (120), 55 states have return successors, (125), 119 states have call predecessors, (125), 119 states have call successors, (125) [2022-11-03 01:38:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1047 transitions. [2022-11-03 01:38:43,663 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1047 transitions. Word has length 105 [2022-11-03 01:38:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:43,664 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1047 transitions. [2022-11-03 01:38:43,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:38:43,665 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1047 transitions. [2022-11-03 01:38:43,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-03 01:38:43,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:43,668 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:43,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:38:43,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:43,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:43,670 INFO L85 PathProgramCache]: Analyzing trace with hash 521041396, now seen corresponding path program 1 times [2022-11-03 01:38:43,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:43,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291734741] [2022-11-03 01:38:43,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:43,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-11-03 01:38:44,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:44,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291734741] [2022-11-03 01:38:44,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291734741] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:44,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:44,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:38:44,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446703882] [2022-11-03 01:38:44,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:44,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:38:44,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:44,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:38:44,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:44,056 INFO L87 Difference]: Start difference. First operand 733 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 01:38:45,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:45,430 INFO L93 Difference]: Finished difference Result 1949 states and 2788 transitions. [2022-11-03 01:38:45,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:38:45,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2022-11-03 01:38:45,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:45,439 INFO L225 Difference]: With dead ends: 1949 [2022-11-03 01:38:45,439 INFO L226 Difference]: Without dead ends: 1236 [2022-11-03 01:38:45,442 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 01:38:45,444 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 185 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:45,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 446 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 01:38:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2022-11-03 01:38:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 1231. [2022-11-03 01:38:45,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1231 states, 941 states have (on average 1.4261424017003188) internal successors, (1342), 941 states have internal predecessors, (1342), 194 states have call successors, (194), 96 states have call predecessors, (194), 95 states have return successors, (201), 193 states have call predecessors, (201), 193 states have call successors, (201) [2022-11-03 01:38:45,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1737 transitions. [2022-11-03 01:38:45,531 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1737 transitions. Word has length 123 [2022-11-03 01:38:45,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:45,532 INFO L495 AbstractCegarLoop]: Abstraction has 1231 states and 1737 transitions. [2022-11-03 01:38:45,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 01:38:45,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1737 transitions. [2022-11-03 01:38:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-03 01:38:45,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:45,537 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:45,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:38:45,537 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:45,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:45,538 INFO L85 PathProgramCache]: Analyzing trace with hash -166544316, now seen corresponding path program 1 times [2022-11-03 01:38:45,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:45,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005679119] [2022-11-03 01:38:45,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:45,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-03 01:38:46,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:46,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005679119] [2022-11-03 01:38:46,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005679119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:46,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:46,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:38:46,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837465467] [2022-11-03 01:38:46,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:46,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:38:46,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:46,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:38:46,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:38:46,169 INFO L87 Difference]: Start difference. First operand 1231 states and 1737 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 01:38:49,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:50,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:50,586 INFO L93 Difference]: Finished difference Result 2496 states and 3545 transitions. [2022-11-03 01:38:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:38:50,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2022-11-03 01:38:50,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:50,595 INFO L225 Difference]: With dead ends: 2496 [2022-11-03 01:38:50,596 INFO L226 Difference]: Without dead ends: 1285 [2022-11-03 01:38:50,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:38:50,603 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 2 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:50,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 765 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-03 01:38:50,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-11-03 01:38:50,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1271. [2022-11-03 01:38:50,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 969 states have (on average 1.413828689370485) internal successors, (1370), 973 states have internal predecessors, (1370), 194 states have call successors, (194), 96 states have call predecessors, (194), 107 states have return successors, (221), 201 states have call predecessors, (221), 193 states have call successors, (221) [2022-11-03 01:38:50,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 1785 transitions. [2022-11-03 01:38:50,684 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 1785 transitions. Word has length 123 [2022-11-03 01:38:50,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:50,687 INFO L495 AbstractCegarLoop]: Abstraction has 1271 states and 1785 transitions. [2022-11-03 01:38:50,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-03 01:38:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 1785 transitions. [2022-11-03 01:38:50,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-03 01:38:50,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:50,692 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:50,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:38:50,696 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:50,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash 490213178, now seen corresponding path program 1 times [2022-11-03 01:38:50,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:50,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638876526] [2022-11-03 01:38:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:50,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:50,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-11-03 01:38:51,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:51,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638876526] [2022-11-03 01:38:51,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638876526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:51,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:51,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 01:38:51,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037656493] [2022-11-03 01:38:51,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:51,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 01:38:51,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:51,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 01:38:51,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:38:51,395 INFO L87 Difference]: Start difference. First operand 1271 states and 1785 transitions. Second operand has 9 states, 9 states have (on average 8.0) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:38:52,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:54,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:55,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:56,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:38:58,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:00,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:39:00,689 INFO L93 Difference]: Finished difference Result 2728 states and 3881 transitions. [2022-11-03 01:39:00,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 01:39:00,690 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2022-11-03 01:39:00,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:39:00,701 INFO L225 Difference]: With dead ends: 2728 [2022-11-03 01:39:00,701 INFO L226 Difference]: Without dead ends: 1477 [2022-11-03 01:39:00,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-03 01:39:00,713 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 28 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:39:00,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1752 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-03 01:39:00,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2022-11-03 01:39:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1295. [2022-11-03 01:39:00,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 989 states have (on average 1.39737108190091) internal successors, (1382), 989 states have internal predecessors, (1382), 194 states have call successors, (194), 96 states have call predecessors, (194), 111 states have return successors, (225), 209 states have call predecessors, (225), 193 states have call successors, (225) [2022-11-03 01:39:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1801 transitions. [2022-11-03 01:39:00,825 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1801 transitions. Word has length 127 [2022-11-03 01:39:00,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:39:00,826 INFO L495 AbstractCegarLoop]: Abstraction has 1295 states and 1801 transitions. [2022-11-03 01:39:00,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.0) internal successors, (72), 7 states have internal predecessors, (72), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-03 01:39:00,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1801 transitions. [2022-11-03 01:39:00,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-03 01:39:00,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:39:00,833 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:39:00,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:39:00,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:39:00,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:39:00,834 INFO L85 PathProgramCache]: Analyzing trace with hash -794174829, now seen corresponding path program 1 times [2022-11-03 01:39:00,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:39:00,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431212107] [2022-11-03 01:39:00,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:00,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:39:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-03 01:39:01,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:39:01,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431212107] [2022-11-03 01:39:01,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431212107] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:39:01,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720850128] [2022-11-03 01:39:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:01,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:39:01,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:39:01,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:39:01,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:39:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:02,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 1517 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 01:39:02,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:39:02,300 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-03 01:39:02,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:39:02,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720850128] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:39:02,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:39:02,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-03 01:39:02,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065520911] [2022-11-03 01:39:02,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:39:02,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:39:02,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:39:02,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:39:02,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:39:02,316 INFO L87 Difference]: Start difference. First operand 1295 states and 1801 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:39:04,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:39:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:39:04,612 INFO L93 Difference]: Finished difference Result 2578 states and 3589 transitions. [2022-11-03 01:39:04,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:39:04,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2022-11-03 01:39:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:39:04,621 INFO L225 Difference]: With dead ends: 2578 [2022-11-03 01:39:04,621 INFO L226 Difference]: Without dead ends: 1296 [2022-11-03 01:39:04,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:39:04,626 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 1 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:39:04,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 582 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 01:39:04,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2022-11-03 01:39:04,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1296. [2022-11-03 01:39:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 990 states have (on average 1.396969696969697) internal successors, (1383), 990 states have internal predecessors, (1383), 194 states have call successors, (194), 96 states have call predecessors, (194), 111 states have return successors, (225), 209 states have call predecessors, (225), 193 states have call successors, (225) [2022-11-03 01:39:04,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1802 transitions. [2022-11-03 01:39:04,704 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1802 transitions. Word has length 133 [2022-11-03 01:39:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:39:04,704 INFO L495 AbstractCegarLoop]: Abstraction has 1296 states and 1802 transitions. [2022-11-03 01:39:04,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 01:39:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1802 transitions. [2022-11-03 01:39:04,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-03 01:39:04,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:39:04,710 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:39:04,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:39:04,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 01:39:04,922 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:39:04,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:39:04,923 INFO L85 PathProgramCache]: Analyzing trace with hash 538729131, now seen corresponding path program 1 times [2022-11-03 01:39:04,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:39:04,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482705394] [2022-11-03 01:39:04,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:04,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:39:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-03 01:39:05,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:39:05,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482705394] [2022-11-03 01:39:05,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482705394] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:39:05,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498863697] [2022-11-03 01:39:05,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:05,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:39:05,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:39:05,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:39:05,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:39:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:06,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 01:39:06,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:39:06,604 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-03 01:39:06,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:39:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-03 01:39:06,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498863697] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:39:06,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1294172793] [2022-11-03 01:39:06,915 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-03 01:39:06,915 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:39:06,921 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:39:06,928 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:39:06,928 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:39:07,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 368 treesize of output 320 [2022-11-03 01:39:08,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:08,911 INFO L244 Elim1Store]: Index analysis took 522 ms [2022-11-03 01:39:09,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 100 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 207 [2022-11-03 01:39:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:10,686 INFO L244 Elim1Store]: Index analysis took 143 ms [2022-11-03 01:39:10,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 44 select indices, 44 select index equivalence classes, 561 disjoint index pairs (out of 946 index pairs), introduced 45 new quantified variables, introduced 0 case distinctions, treesize of input 435 treesize of output 586 [2022-11-03 01:39:10,825 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 400 treesize of output 321 [2022-11-03 01:39:11,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:11,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:11,216 INFO L244 Elim1Store]: Index analysis took 220 ms [2022-11-03 01:39:14,424 INFO L356 Elim1Store]: treesize reduction 896, result has 25.4 percent of original size [2022-11-03 01:39:14,427 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 27 select indices, 27 select index equivalence classes, 304 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 72 case distinctions, treesize of input 149 treesize of output 405 [2022-11-03 01:39:15,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:15,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:16,182 INFO L244 Elim1Store]: Index analysis took 368 ms [2022-11-03 01:39:17,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 115 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 225 [2022-11-03 01:39:17,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:17,492 INFO L244 Elim1Store]: Index analysis took 134 ms [2022-11-03 01:39:17,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 80 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 164 [2022-11-03 01:39:17,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,221 INFO L244 Elim1Store]: Index analysis took 123 ms [2022-11-03 01:39:18,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 44 select indices, 44 select index equivalence classes, 547 disjoint index pairs (out of 946 index pairs), introduced 45 new quantified variables, introduced 0 case distinctions, treesize of input 415 treesize of output 550 [2022-11-03 01:39:18,374 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 400 treesize of output 321 [2022-11-03 01:39:18,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:18,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 24 select indices, 24 select index equivalence classes, 327 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 203 [2022-11-03 01:39:20,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 01:39:20,016 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 7 treesize of output 6 [2022-11-03 01:39:20,025 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 01:39:21,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:21,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:21,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 82 [2022-11-03 01:39:21,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 360 [2022-11-03 01:39:21,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-11-03 01:39:21,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 29 treesize of output 13 [2022-11-03 01:39:21,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:21,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:21,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 327 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 79 [2022-11-03 01:39:23,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:23,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:23,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 27 select indices, 27 select index equivalence classes, 351 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 82 [2022-11-03 01:39:23,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:23,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 01:39:23,827 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 327 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 79 [2022-11-03 01:39:24,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 360 [2022-11-03 01:39:24,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 34 [2022-11-03 01:39:24,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 29 treesize of output 13 [2022-11-03 01:39:32,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-03 01:39:32,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 01:39:32,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 01:39:40,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 01:39:40,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 01:39:40,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-11-03 01:39:41,359 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 11 treesize of output 7 [2022-11-03 01:39:41,364 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 11 treesize of output 7 [2022-11-03 01:39:41,369 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 01:39:41,422 INFO L356 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-03 01:39:41,422 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 1 case distinctions, treesize of input 53 treesize of output 56 [2022-11-03 01:39:41,460 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 01:39:41,461 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 1 case distinctions, treesize of input 47 treesize of output 50 [2022-11-03 01:39:41,497 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-03 01:39:41,498 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 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-03 01:39:41,538 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 14 treesize of output 10 [2022-11-03 01:39:41,549 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 16 treesize of output 12 [2022-11-03 01:39:41,557 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 14 treesize of output 10 [2022-11-03 01:39:50,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:39:50,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 01:39:50,527 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 01:39:50,531 INFO L158 Benchmark]: Toolchain (without parser) took 81336.07ms. Allocated memory was 96.5MB in the beginning and 597.7MB in the end (delta: 501.2MB). Free memory was 53.3MB in the beginning and 246.9MB in the end (delta: -193.5MB). Peak memory consumption was 383.3MB. Max. memory is 16.1GB. [2022-11-03 01:39:50,532 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 96.5MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:39:50,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1819.88ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 53.1MB in the beginning and 79.9MB in the end (delta: -26.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2022-11-03 01:39:50,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.14ms. Allocated memory is still 130.0MB. Free memory was 79.9MB in the beginning and 72.9MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:39:50,542 INFO L158 Benchmark]: Boogie Preprocessor took 170.44ms. Allocated memory is still 130.0MB. Free memory was 72.9MB in the beginning and 65.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 01:39:50,543 INFO L158 Benchmark]: RCFGBuilder took 3532.46ms. Allocated memory was 130.0MB in the beginning and 237.0MB in the end (delta: 107.0MB). Free memory was 65.9MB in the beginning and 120.6MB in the end (delta: -54.7MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2022-11-03 01:39:50,544 INFO L158 Benchmark]: TraceAbstraction took 75663.51ms. Allocated memory was 237.0MB in the beginning and 597.7MB in the end (delta: 360.7MB). Free memory was 119.5MB in the beginning and 246.9MB in the end (delta: -127.3MB). Peak memory consumption was 309.4MB. Max. memory is 16.1GB. [2022-11-03 01:39:50,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64ms. Allocated memory is still 96.5MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1819.88ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 53.1MB in the beginning and 79.9MB in the end (delta: -26.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.14ms. Allocated memory is still 130.0MB. Free memory was 79.9MB in the beginning and 72.9MB in the end (delta: 7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 170.44ms. Allocated memory is still 130.0MB. Free memory was 72.9MB in the beginning and 65.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3532.46ms. Allocated memory was 130.0MB in the beginning and 237.0MB in the end (delta: 107.0MB). Free memory was 65.9MB in the beginning and 120.6MB in the end (delta: -54.7MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * TraceAbstraction took 75663.51ms. Allocated memory was 237.0MB in the beginning and 597.7MB in the end (delta: 360.7MB). Free memory was 119.5MB in the beginning and 246.9MB in the end (delta: -127.3MB). Peak memory consumption was 309.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-03 01:39:50,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/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_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/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 ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b --- 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 01:39:53,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:39:53,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:39:53,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:39:53,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:39:53,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:39:53,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:39:53,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:39:53,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:39:53,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:39:53,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:39:53,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:39:53,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:39:53,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:39:53,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:39:53,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:39:53,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:39:53,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:39:53,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:39:53,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:39:53,633 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:39:53,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:39:53,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:39:53,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:39:53,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:39:53,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:39:53,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:39:53,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:39:53,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:39:53,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:39:53,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:39:53,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:39:53,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:39:53,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:39:53,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:39:53,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:39:53,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:39:53,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:39:53,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:39:53,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:39:53,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:39:53,685 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 01:39:53,754 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:39:53,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:39:53,755 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:39:53,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:39:53,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:39:53,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:39:53,757 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:39:53,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:39:53,758 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:39:53,758 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:39:53,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:39:53,759 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:39:53,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:39:53,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:39:53,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:39:53,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:39:53,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:39:53,762 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 01:39:53,768 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 01:39:53,768 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 01:39:53,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:39:53,769 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:39:53,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:39:53,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:39:53,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 01:39:53,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:39:53,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:39:53,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:39:53,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:39:53,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:39:53,773 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 01:39:53,773 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 01:39:53,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:39:53,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:39:53,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 01:39:53,774 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_85cceec2-27fc-4012-9041-a12b20e79f94/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef92dd0c18fa389aa454198685fbcc052698924a127f9f39b737e9548a23680b [2022-11-03 01:39:54,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:39:54,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:39:54,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:39:54,331 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:39:54,332 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:39:54,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-11-03 01:39:54,434 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data/c721aa8de/9e403c34a0674c63a4ed50dc914cf56f/FLAGe30a61b07 [2022-11-03 01:39:55,687 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:39:55,689 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-11-03 01:39:55,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data/c721aa8de/9e403c34a0674c63a4ed50dc914cf56f/FLAGe30a61b07 [2022-11-03 01:39:56,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/data/c721aa8de/9e403c34a0674c63a4ed50dc914cf56f [2022-11-03 01:39:56,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:39:56,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:39:56,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:39:56,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:39:56,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:39:56,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:39:56" (1/1) ... [2022-11-03 01:39:56,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31dfd3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:56, skipping insertion in model container [2022-11-03 01:39:56,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:39:56" (1/1) ... [2022-11-03 01:39:56,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:39:56,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:39:57,370 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_85cceec2-27fc-4012-9041-a12b20e79f94/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2022-11-03 01:39:57,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:39:57,765 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 01:39:57,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:39:58,124 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_85cceec2-27fc-4012-9041-a12b20e79f94/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2022-11-03 01:39:58,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:39:58,292 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:39:58,580 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_85cceec2-27fc-4012-9041-a12b20e79f94/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i[160969,160982] [2022-11-03 01:39:58,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:39:58,721 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:39:58,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58 WrapperNode [2022-11-03 01:39:58,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:39:58,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:39:58,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:39:58,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:39:58,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:58,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:58,903 INFO L138 Inliner]: procedures = 115, calls = 368, calls flagged for inlining = 41, calls inlined = 38, statements flattened = 932 [2022-11-03 01:39:58,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:39:58,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:39:58,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:39:58,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:39:58,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:58,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:58,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:58,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:59,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:59,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:59,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:59,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:59,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:39:59,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:39:59,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:39:59,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:39:59,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (1/1) ... [2022-11-03 01:39:59,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:39:59,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:39:59,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:39:59,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:39:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-03 01:39:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 01:39:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:39:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-03 01:39:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:39:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:39:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:39:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-03 01:39:59,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-03 01:39:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 01:39:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 01:39:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:39:59,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:39:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-03 01:39:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-03 01:39:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-03 01:39:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-03 01:39:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-03 01:39:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-03 01:39:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-03 01:39:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-03 01:39:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-03 01:39:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-03 01:39:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:39:59,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:39:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 01:39:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 01:39:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-03 01:39:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-03 01:39:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:39:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:39:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:39:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:39:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-03 01:39:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-03 01:39:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-03 01:39:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:39:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_tx_fixup [2022-11-03 01:39:59,178 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_tx_fixup [2022-11-03 01:39:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure genelink_rx_fixup [2022-11-03 01:39:59,178 INFO L138 BoogieDeclarations]: Found implementation of procedure genelink_rx_fixup [2022-11-03 01:39:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-03 01:39:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-03 01:39:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:39:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 01:39:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:39:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 01:39:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-03 01:39:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-03 01:39:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:39:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:39:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-03 01:39:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 01:39:59,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 01:39:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:39:59,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:39:59,768 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:39:59,772 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:39:59,985 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:40:11,163 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:40:11,186 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:40:11,187 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 01:40:11,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:40:11 BoogieIcfgContainer [2022-11-03 01:40:11,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:40:11,197 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:40:11,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:40:11,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:40:11,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:39:56" (1/3) ... [2022-11-03 01:40:11,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6828578d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:40:11, skipping insertion in model container [2022-11-03 01:40:11,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:39:58" (2/3) ... [2022-11-03 01:40:11,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6828578d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:40:11, skipping insertion in model container [2022-11-03 01:40:11,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:40:11" (3/3) ... [2022-11-03 01:40:11,206 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--gl620a.ko-entry_point.cil.out.i [2022-11-03 01:40:11,231 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:40:11,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:40:11,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:40:11,333 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;@2d4dd4d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:40:11,333 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:40:11,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 239 states, 188 states have (on average 1.398936170212766) internal successors, (263), 194 states have internal predecessors, (263), 36 states have call successors, (36), 14 states have call predecessors, (36), 13 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-03 01:40:11,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 01:40:11,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:11,357 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 01:40:11,358 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:11,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:11,364 INFO L85 PathProgramCache]: Analyzing trace with hash 721078938, now seen corresponding path program 1 times [2022-11-03 01:40:11,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:11,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741182317] [2022-11-03 01:40:11,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:11,385 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:11,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:11,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:11,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 01:40:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:12,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:40:12,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:40:12,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:40:12,362 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:12,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741182317] [2022-11-03 01:40:12,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741182317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:12,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:40:12,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:40:12,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97707914] [2022-11-03 01:40:12,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:12,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:40:12,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:12,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:40:12,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:40:12,426 INFO L87 Difference]: Start difference. First operand has 239 states, 188 states have (on average 1.398936170212766) internal successors, (263), 194 states have internal predecessors, (263), 36 states have call successors, (36), 14 states have call predecessors, (36), 13 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 01:40:12,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:12,698 INFO L93 Difference]: Finished difference Result 476 states and 682 transitions. [2022-11-03 01:40:12,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:40:12,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2022-11-03 01:40:12,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:12,717 INFO L225 Difference]: With dead ends: 476 [2022-11-03 01:40:12,717 INFO L226 Difference]: Without dead ends: 229 [2022-11-03 01:40:12,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:40:12,727 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 2 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:12,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 966 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:40:12,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-11-03 01:40:12,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2022-11-03 01:40:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 184 states have (on average 1.358695652173913) internal successors, (250), 184 states have internal predecessors, (250), 32 states have call successors, (32), 13 states have call predecessors, (32), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-03 01:40:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 313 transitions. [2022-11-03 01:40:12,872 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 313 transitions. Word has length 42 [2022-11-03 01:40:12,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:12,874 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 313 transitions. [2022-11-03 01:40:12,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 01:40:12,875 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 313 transitions. [2022-11-03 01:40:12,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-03 01:40:12,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:12,879 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 01:40:12,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:13,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:40:13,094 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:13,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:13,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1187275936, now seen corresponding path program 1 times [2022-11-03 01:40:13,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:13,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [498663099] [2022-11-03 01:40:13,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:13,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:13,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:13,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:13,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 01:40:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:13,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:13,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 01:40:14,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:14,552 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 01:40:14,553 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:14,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [498663099] [2022-11-03 01:40:14,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [498663099] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:14,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1199370725] [2022-11-03 01:40:14,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:14,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:14,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:40:14,570 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:40:14,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-03 01:40:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:15,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:40:15,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:15,484 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 01:40:15,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:40:15,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1199370725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:15,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:40:15,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2022-11-03 01:40:15,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959161769] [2022-11-03 01:40:15,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:15,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:40:15,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:15,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:40:15,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:40:15,488 INFO L87 Difference]: Start difference. First operand 229 states and 313 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 01:40:17,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:17,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:17,786 INFO L93 Difference]: Finished difference Result 632 states and 873 transitions. [2022-11-03 01:40:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:40:17,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2022-11-03 01:40:17,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:17,793 INFO L225 Difference]: With dead ends: 632 [2022-11-03 01:40:17,793 INFO L226 Difference]: Without dead ends: 420 [2022-11-03 01:40:17,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:40:17,797 INFO L413 NwaCegarLoop]: 343 mSDtfsCounter, 267 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:17,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 636 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 01:40:17,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2022-11-03 01:40:17,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2022-11-03 01:40:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 340 states have (on average 1.3735294117647059) internal successors, (467), 340 states have internal predecessors, (467), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-11-03 01:40:17,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 578 transitions. [2022-11-03 01:40:17,850 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 578 transitions. Word has length 44 [2022-11-03 01:40:17,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:17,850 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 578 transitions. [2022-11-03 01:40:17,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-03 01:40:17,851 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 578 transitions. [2022-11-03 01:40:17,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-03 01:40:17,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:17,855 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:17,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-03 01:40:18,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-03 01:40:18,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:40:18,260 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:18,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1019070248, now seen corresponding path program 1 times [2022-11-03 01:40:18,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:18,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252794911] [2022-11-03 01:40:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:18,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:18,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:18,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:18,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 01:40:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:18,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:18,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 01:40:19,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-03 01:40:19,561 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:19,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252794911] [2022-11-03 01:40:19,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252794911] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:19,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [139523810] [2022-11-03 01:40:19,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:19,562 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:19,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:40:19,565 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:40:19,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2022-11-03 01:40:20,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:20,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:20,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-03 01:40:21,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:40:21,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [139523810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:21,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:40:21,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2022-11-03 01:40:21,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222739621] [2022-11-03 01:40:21,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:21,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:40:21,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:21,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:40:21,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-03 01:40:21,056 INFO L87 Difference]: Start difference. First operand 420 states and 578 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 01:40:21,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:21,560 INFO L93 Difference]: Finished difference Result 1223 states and 1702 transitions. [2022-11-03 01:40:21,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:40:21,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2022-11-03 01:40:21,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:21,573 INFO L225 Difference]: With dead ends: 1223 [2022-11-03 01:40:21,573 INFO L226 Difference]: Without dead ends: 814 [2022-11-03 01:40:21,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:40:21,587 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 275 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 1321 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:21,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 1321 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:40:21,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-11-03 01:40:21,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 814. [2022-11-03 01:40:21,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 661 states have (on average 1.3751891074130105) internal successors, (909), 661 states have internal predecessors, (909), 107 states have call successors, (107), 46 states have call predecessors, (107), 45 states have return successors, (112), 106 states have call predecessors, (112), 106 states have call successors, (112) [2022-11-03 01:40:21,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1128 transitions. [2022-11-03 01:40:21,737 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1128 transitions. Word has length 54 [2022-11-03 01:40:21,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:21,738 INFO L495 AbstractCegarLoop]: Abstraction has 814 states and 1128 transitions. [2022-11-03 01:40:21,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-03 01:40:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1128 transitions. [2022-11-03 01:40:21,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-03 01:40:21,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:21,760 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:21,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:22,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:22,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:40:22,167 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:22,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:22,168 INFO L85 PathProgramCache]: Analyzing trace with hash -2124039666, now seen corresponding path program 1 times [2022-11-03 01:40:22,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:22,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181265028] [2022-11-03 01:40:22,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:22,170 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:22,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:22,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:22,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 01:40:22,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:23,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:23,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:23,118 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-03 01:40:23,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-03 01:40:23,579 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:23,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181265028] [2022-11-03 01:40:23,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181265028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:23,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1041499629] [2022-11-03 01:40:23,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:23,587 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:23,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:40:23,589 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:40:23,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-03 01:40:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:24,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:40:24,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-03 01:40:24,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:40:24,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1041499629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:24,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:40:24,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2022-11-03 01:40:24,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285304184] [2022-11-03 01:40:24,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:24,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:40:24,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:24,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:40:24,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:40:24,556 INFO L87 Difference]: Start difference. First operand 814 states and 1128 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:40:25,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:25,034 INFO L93 Difference]: Finished difference Result 1841 states and 2566 transitions. [2022-11-03 01:40:25,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:40:25,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 128 [2022-11-03 01:40:25,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:25,047 INFO L225 Difference]: With dead ends: 1841 [2022-11-03 01:40:25,047 INFO L226 Difference]: Without dead ends: 1044 [2022-11-03 01:40:25,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:40:25,057 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 111 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:25,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 598 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:40:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2022-11-03 01:40:25,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1035. [2022-11-03 01:40:25,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1035 states, 859 states have (on average 1.39930151338766) internal successors, (1202), 859 states have internal predecessors, (1202), 120 states have call successors, (120), 56 states have call predecessors, (120), 55 states have return successors, (125), 119 states have call predecessors, (125), 119 states have call successors, (125) [2022-11-03 01:40:25,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1447 transitions. [2022-11-03 01:40:25,153 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1447 transitions. Word has length 128 [2022-11-03 01:40:25,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:25,154 INFO L495 AbstractCegarLoop]: Abstraction has 1035 states and 1447 transitions. [2022-11-03 01:40:25,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:40:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1447 transitions. [2022-11-03 01:40:25,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-03 01:40:25,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:25,159 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:25,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2022-11-03 01:40:25,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:25,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:40:25,576 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:25,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:25,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1139158602, now seen corresponding path program 1 times [2022-11-03 01:40:25,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:25,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529121948] [2022-11-03 01:40:25,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:25,578 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:25,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:25,580 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:25,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 01:40:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:26,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:26,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:26,587 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-03 01:40:26,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 01:40:27,065 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:27,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529121948] [2022-11-03 01:40:27,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529121948] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:27,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [11543494] [2022-11-03 01:40:27,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:27,066 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:27,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:40:27,068 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:40:27,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-03 01:40:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:28,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 01:40:28,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-03 01:40:28,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:40:28,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [11543494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:28,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:40:28,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2022-11-03 01:40:28,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833343421] [2022-11-03 01:40:28,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:28,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:40:28,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:28,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:40:28,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:40:28,350 INFO L87 Difference]: Start difference. First operand 1035 states and 1447 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 01:40:30,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:40:30,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:30,843 INFO L93 Difference]: Finished difference Result 2755 states and 3852 transitions. [2022-11-03 01:40:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:40:30,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 150 [2022-11-03 01:40:30,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:30,855 INFO L225 Difference]: With dead ends: 2755 [2022-11-03 01:40:30,856 INFO L226 Difference]: Without dead ends: 1748 [2022-11-03 01:40:30,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:40:30,861 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 257 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:30,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 720 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 01:40:30,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2022-11-03 01:40:30,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1739. [2022-11-03 01:40:30,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1449 states have (on average 1.3844030365769495) internal successors, (2006), 1449 states have internal predecessors, (2006), 194 states have call successors, (194), 96 states have call predecessors, (194), 95 states have return successors, (201), 193 states have call predecessors, (201), 193 states have call successors, (201) [2022-11-03 01:40:30,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2401 transitions. [2022-11-03 01:40:30,989 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2401 transitions. Word has length 150 [2022-11-03 01:40:30,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:30,990 INFO L495 AbstractCegarLoop]: Abstraction has 1739 states and 2401 transitions. [2022-11-03 01:40:30,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-03 01:40:30,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2401 transitions. [2022-11-03 01:40:30,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-03 01:40:30,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:30,996 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:31,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:31,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:31,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:31,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:31,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:31,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1342155148, now seen corresponding path program 1 times [2022-11-03 01:40:31,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:31,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1259570760] [2022-11-03 01:40:31,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:31,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:31,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:31,425 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:31,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 01:40:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:32,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:32,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:32,589 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-03 01:40:32,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 01:40:33,127 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:33,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1259570760] [2022-11-03 01:40:33,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1259570760] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:33,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [601038074] [2022-11-03 01:40:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:33,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:33,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:40:33,130 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:40:33,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-03 01:40:34,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:34,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:34,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:35,043 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-03 01:40:35,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 01:40:35,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [601038074] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:35,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276424040] [2022-11-03 01:40:35,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:35,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:40:35,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:40:35,362 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:40:35,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 01:40:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:36,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 01:40:36,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:36,655 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-03 01:40:36,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:40:36,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276424040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:36,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-03 01:40:36,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5, 5, 5] total 11 [2022-11-03 01:40:36,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523369529] [2022-11-03 01:40:36,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:36,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:40:36,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:36,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:40:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-03 01:40:36,660 INFO L87 Difference]: Start difference. First operand 1739 states and 2401 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 01:40:36,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:36,904 INFO L93 Difference]: Finished difference Result 3504 states and 4865 transitions. [2022-11-03 01:40:36,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:40:36,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 150 [2022-11-03 01:40:36,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:36,917 INFO L225 Difference]: With dead ends: 3504 [2022-11-03 01:40:36,918 INFO L226 Difference]: Without dead ends: 1793 [2022-11-03 01:40:36,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 745 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-03 01:40:36,927 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 2 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:36,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1229 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:40:36,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1793 states. [2022-11-03 01:40:37,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1793 to 1779. [2022-11-03 01:40:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1477 states have (on average 1.3771157752200407) internal successors, (2034), 1481 states have internal predecessors, (2034), 194 states have call successors, (194), 96 states have call predecessors, (194), 107 states have return successors, (221), 201 states have call predecessors, (221), 193 states have call successors, (221) [2022-11-03 01:40:37,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2449 transitions. [2022-11-03 01:40:37,040 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2449 transitions. Word has length 150 [2022-11-03 01:40:37,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:37,041 INFO L495 AbstractCegarLoop]: Abstraction has 1779 states and 2449 transitions. [2022-11-03 01:40:37,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-03 01:40:37,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2449 transitions. [2022-11-03 01:40:37,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-03 01:40:37,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:37,047 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:37,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:37,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:37,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:37,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:40:37,670 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:37,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:37,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1786209184, now seen corresponding path program 1 times [2022-11-03 01:40:37,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:37,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221873064] [2022-11-03 01:40:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:37,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:37,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:37,675 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:37,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-03 01:40:38,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:38,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:38,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-11-03 01:40:38,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:39,309 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-11-03 01:40:39,309 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:39,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221873064] [2022-11-03 01:40:39,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221873064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:39,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [524866001] [2022-11-03 01:40:39,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:39,310 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:39,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:40:39,312 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:40:39,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2022-11-03 01:40:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:40,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 01:40:40,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:41,388 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-11-03 01:40:41,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:40:41,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [524866001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:41,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 01:40:41,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 5] total 16 [2022-11-03 01:40:41,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83444081] [2022-11-03 01:40:41,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:41,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 01:40:41,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:41,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 01:40:41,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:40:41,392 INFO L87 Difference]: Start difference. First operand 1779 states and 2449 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 01:40:42,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:42,528 INFO L93 Difference]: Finished difference Result 3800 states and 5281 transitions. [2022-11-03 01:40:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 01:40:42,529 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 157 [2022-11-03 01:40:42,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:42,541 INFO L225 Difference]: With dead ends: 3800 [2022-11-03 01:40:42,541 INFO L226 Difference]: Without dead ends: 2049 [2022-11-03 01:40:42,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2022-11-03 01:40:42,548 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 43 mSDsluCounter, 2796 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:42,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 3156 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 01:40:42,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2022-11-03 01:40:42,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 1803. [2022-11-03 01:40:42,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1497 states have (on average 1.3667334669338678) internal successors, (2046), 1497 states have internal predecessors, (2046), 194 states have call successors, (194), 96 states have call predecessors, (194), 111 states have return successors, (225), 209 states have call predecessors, (225), 193 states have call successors, (225) [2022-11-03 01:40:42,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2465 transitions. [2022-11-03 01:40:42,659 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2465 transitions. Word has length 157 [2022-11-03 01:40:42,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:42,660 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 2465 transitions. [2022-11-03 01:40:42,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 8 states have internal predecessors, (97), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 01:40:42,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2465 transitions. [2022-11-03 01:40:42,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-03 01:40:42,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:42,680 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:40:42,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:42,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:43,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:43,102 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:43,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:43,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1686704921, now seen corresponding path program 1 times [2022-11-03 01:40:43,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:43,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751168028] [2022-11-03 01:40:43,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:43,104 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:43,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:43,105 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:43,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-03 01:40:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:43,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:43,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:44,112 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-03 01:40:44,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 01:40:44,685 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:44,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751168028] [2022-11-03 01:40:44,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751168028] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:44,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [510126635] [2022-11-03 01:40:44,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:44,686 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:44,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:40:44,694 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:40:44,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2022-11-03 01:40:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:46,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:46,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:46,777 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-03 01:40:46,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:47,040 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 01:40:47,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [510126635] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:47,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020702833] [2022-11-03 01:40:47,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:47,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:40:47,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:40:47,043 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:40:47,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 01:40:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:47,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 01:40:47,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:49,743 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-03 01:40:49,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:40:49,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020702833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:40:49,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-03 01:40:49,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [5, 5, 5, 5] total 18 [2022-11-03 01:40:49,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644746691] [2022-11-03 01:40:49,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:40:49,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 01:40:49,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:49,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 01:40:49,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2022-11-03 01:40:49,745 INFO L87 Difference]: Start difference. First operand 1803 states and 2465 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 10 states have internal predecessors, (98), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-03 01:40:52,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:52,147 INFO L93 Difference]: Finished difference Result 3928 states and 5421 transitions. [2022-11-03 01:40:52,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 01:40:52,148 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 10 states have internal predecessors, (98), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) Word has length 163 [2022-11-03 01:40:52,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:52,161 INFO L225 Difference]: With dead ends: 3928 [2022-11-03 01:40:52,161 INFO L226 Difference]: Without dead ends: 2153 [2022-11-03 01:40:52,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 796 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2022-11-03 01:40:52,169 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 99 mSDsluCounter, 3508 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:52,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 3877 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-03 01:40:52,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2022-11-03 01:40:52,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 1843. [2022-11-03 01:40:52,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1529 states have (on average 1.3590582079790714) internal successors, (2078), 1529 states have internal predecessors, (2078), 202 states have call successors, (202), 96 states have call predecessors, (202), 111 states have return successors, (233), 217 states have call predecessors, (233), 201 states have call successors, (233) [2022-11-03 01:40:52,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2513 transitions. [2022-11-03 01:40:52,365 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2513 transitions. Word has length 163 [2022-11-03 01:40:52,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:52,365 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 2513 transitions. [2022-11-03 01:40:52,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 10 states have internal predecessors, (98), 4 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 6 states have call predecessors, (17), 4 states have call successors, (17) [2022-11-03 01:40:52,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2513 transitions. [2022-11-03 01:40:52,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 01:40:52,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:52,373 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:52,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:52,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:52,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:52,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:52,999 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:52,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:52,999 INFO L85 PathProgramCache]: Analyzing trace with hash -518600119, now seen corresponding path program 1 times [2022-11-03 01:40:53,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:53,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883298394] [2022-11-03 01:40:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:53,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:53,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:53,002 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:53,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 01:40:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:54,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:54,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-03 01:40:54,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 01:40:54,821 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 01:40:54,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883298394] [2022-11-03 01:40:54,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883298394] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:54,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1390819196] [2022-11-03 01:40:54,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:54,822 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 01:40:54,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 01:40:54,824 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 01:40:54,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-03 01:40:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:56,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:56,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-03 01:40:56,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 01:40:57,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1390819196] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:57,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427816897] [2022-11-03 01:40:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:40:57,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:40:57,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:40:57,255 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:40:57,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-03 01:40:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:40:58,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 01:40:58,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:40:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-03 01:40:58,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:40:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 01:40:58,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427816897] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:40:58,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-03 01:40:58,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2022-11-03 01:40:58,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206624221] [2022-11-03 01:40:58,695 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-03 01:40:58,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:40:58,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 01:40:58,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:40:58,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:40:58,697 INFO L87 Difference]: Start difference. First operand 1843 states and 2513 transitions. Second operand has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 01:40:59,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:40:59,206 INFO L93 Difference]: Finished difference Result 3673 states and 5015 transitions. [2022-11-03 01:40:59,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:40:59,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 172 [2022-11-03 01:40:59,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:40:59,217 INFO L225 Difference]: With dead ends: 3673 [2022-11-03 01:40:59,217 INFO L226 Difference]: Without dead ends: 1846 [2022-11-03 01:40:59,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1020 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:40:59,226 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 9 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:40:59,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 929 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:40:59,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1846 states. [2022-11-03 01:40:59,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1846 to 1846. [2022-11-03 01:40:59,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1532 states have (on average 1.358355091383812) internal successors, (2081), 1532 states have internal predecessors, (2081), 202 states have call successors, (202), 96 states have call predecessors, (202), 111 states have return successors, (233), 217 states have call predecessors, (233), 201 states have call successors, (233) [2022-11-03 01:40:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 2516 transitions. [2022-11-03 01:40:59,365 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 2516 transitions. Word has length 172 [2022-11-03 01:40:59,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:40:59,365 INFO L495 AbstractCegarLoop]: Abstraction has 1846 states and 2516 transitions. [2022-11-03 01:40:59,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.375) internal successors, (155), 8 states have internal predecessors, (155), 2 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 01:40:59,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 2516 transitions. [2022-11-03 01:40:59,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-03 01:40:59,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:40:59,373 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:40:59,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:59,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:59,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 01:40:59,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:40:59,987 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:40:59,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:40:59,988 INFO L85 PathProgramCache]: Analyzing trace with hash 2025494723, now seen corresponding path program 2 times [2022-11-03 01:40:59,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 01:40:59,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085684105] [2022-11-03 01:40:59,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-03 01:40:59,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 01:40:59,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 01:40:59,991 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 01:40:59,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-03 01:41:06,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-03 01:41:06,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-03 01:41:06,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 01:41:11,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:41:11,668 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-03 01:41:11,669 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 01:41:11,670 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:41:11,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-03 01:41:11,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 01:41:11,897 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:41:11,901 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:41:11,955 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-03 01:41:11,965 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-03 01:41:11,979 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,979 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,979 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,980 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,980 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,981 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,981 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,981 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,982 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,982 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-03 01:41:11,986 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,986 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,987 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,987 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,987 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,987 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,988 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,988 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,988 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,989 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,989 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,989 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,989 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,990 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,990 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,990 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,990 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,991 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,991 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,991 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,991 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,992 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,992 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,992 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,992 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,993 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,993 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,993 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,993 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,994 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,995 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,996 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,996 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,996 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,996 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,997 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,997 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,997 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,997 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,998 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,998 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,998 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,999 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,999 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:11,999 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:11,999 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:11,999 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,000 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,002 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:12,002 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,002 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:12,002 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,003 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,003 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,003 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:12,003 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,004 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:12,004 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,004 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,004 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,005 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,005 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,005 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,005 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:12,006 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,006 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:12,006 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,006 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled [2022-11-03 01:41:12,007 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,007 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:12,007 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled [2022-11-03 01:41:12,007 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled [2022-11-03 01:41:12,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:41:12 BoogieIcfgContainer [2022-11-03 01:41:12,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:41:12,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:41:12,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:41:12,239 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:41:12,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:40:11" (3/4) ... [2022-11-03 01:41:12,243 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 01:41:12,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:41:12,244 INFO L158 Benchmark]: Toolchain (without parser) took 76212.03ms. Allocated memory was 56.6MB in the beginning and 337.6MB in the end (delta: 281.0MB). Free memory was 25.6MB in the beginning and 136.3MB in the end (delta: -110.7MB). Peak memory consumption was 170.3MB. Max. memory is 16.1GB. [2022-11-03 01:41:12,245 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 56.6MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:41:12,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2686.34ms. Allocated memory was 56.6MB in the beginning and 138.4MB in the end (delta: 81.8MB). Free memory was 25.4MB in the beginning and 86.7MB in the end (delta: -61.3MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-11-03 01:41:12,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 182.40ms. Allocated memory is still 138.4MB. Free memory was 86.7MB in the beginning and 79.7MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 01:41:12,246 INFO L158 Benchmark]: Boogie Preprocessor took 163.61ms. Allocated memory is still 138.4MB. Free memory was 79.7MB in the beginning and 72.0MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:41:12,247 INFO L158 Benchmark]: RCFGBuilder took 12120.82ms. Allocated memory was 138.4MB in the beginning and 232.8MB in the end (delta: 94.4MB). Free memory was 72.0MB in the beginning and 106.3MB in the end (delta: -34.2MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. [2022-11-03 01:41:12,248 INFO L158 Benchmark]: TraceAbstraction took 61041.75ms. Allocated memory was 232.8MB in the beginning and 337.6MB in the end (delta: 104.9MB). Free memory was 106.3MB in the beginning and 136.3MB in the end (delta: -30.1MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. [2022-11-03 01:41:12,248 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 337.6MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:41:12,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 56.6MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2686.34ms. Allocated memory was 56.6MB in the beginning and 138.4MB in the end (delta: 81.8MB). Free memory was 25.4MB in the beginning and 86.7MB in the end (delta: -61.3MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 182.40ms. Allocated memory is still 138.4MB. Free memory was 86.7MB in the beginning and 79.7MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 163.61ms. Allocated memory is still 138.4MB. Free memory was 79.7MB in the beginning and 72.0MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 12120.82ms. Allocated memory was 138.4MB in the beginning and 232.8MB in the end (delta: 94.4MB). Free memory was 72.0MB in the beginning and 106.3MB in the end (delta: -34.2MB). Peak memory consumption was 118.7MB. Max. memory is 16.1GB. * TraceAbstraction took 61041.75ms. Allocated memory was 232.8MB in the beginning and 337.6MB in the end (delta: 104.9MB). Free memory was 106.3MB in the beginning and 136.3MB in the end (delta: -30.1MB). Peak memory consumption was 75.8MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 337.6MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_src#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_#res#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memcpy_dest#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 5639]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 5861. Possible FailurePath: [L5662] int LDV_IN_INTERRUPT = 1; [L5663] int ldv_state_variable_2 ; [L5664] struct usbnet *genelink_info_group0 ; [L5665] int ref_cnt ; [L5666] int ldv_state_variable_1 ; [L5667] int usb_counter ; [L5668] struct usb_interface *gl620a_driver_group1 ; [L5669] int ldv_state_variable_0 ; [L5670] struct sk_buff *genelink_info_group1 ; [L5860-L5862] static struct driver_info const genelink_info = {(char *)"Genesys GeneLink", 4114, & genelink_bind, 0, 0, 0, 0, 0, 0, 0, & genelink_rx_fixup, & genelink_tx_fixup, 0, 0, 1, 2, 0UL}; [L5863-L5865] static struct usb_device_id const products[2U] = { {3U, 1507U, 1282U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned long )(& genelink_info)}}; [L5866] struct usb_device_id const __mod_usb__products_device_table ; [L5867-L5876] static struct usb_driver gl620a_driver = {"gl620a", & usbnet_probe, & usbnet_disconnect, 0, & usbnet_suspend, & usbnet_resume, 0, 0, 0, (struct usb_device_id const *)(& products), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, (unsigned char)0, 1U, (unsigned char)0}; [L5893] int ldv_retval_2 ; [L5894] int ldv_retval_5 ; [L5895] int ldv_retval_0 ; [L5896] int ldv_retval_4 ; [L5899] int ldv_retval_1 ; [L5901] int ldv_retval_3 ; [L6187] Element set_impl[15] ; [L6188] int last_index = 0; [L6322] Set LDV_SKBS ; VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5925] struct usb_device_id *ldvarg1 ; [L5926] void *tmp ; [L5927] pm_message_t ldvarg0 ; [L5928] struct usb_interface *ldvarg3 ; [L5929] void *tmp___0 ; [L5930] gfp_t ldvarg2 ; [L5931] int tmp___1 ; [L5932] int tmp___2 ; [L5933] int tmp___3 ; [L5934] int tmp___4 ; VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={73:0}, ldvarg2={77:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5936] CALL, EXPR ldv_zalloc(32UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5604] void *p ; [L5605] void *tmp ; [L5606] int tmp___0 ; [L5608] tmp___0 = __VERIFIER_nondet_int() [L5609] COND TRUE tmp___0 != 0 [L5610] return ((void *)0); VAL [\old(size)=32, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, size=32, tmp___0=2147483648, usb_counter=0] [L5936] RET, EXPR ldv_zalloc(32UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(32UL)={0:0}, ldvarg0={73:0}, ldvarg2={77:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5936] tmp = ldv_zalloc(32UL) [L5937] ldvarg1 = (struct usb_device_id *)tmp VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, usb_counter=0] [L5938] CALL, EXPR ldv_zalloc(1560UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5604] void *p ; [L5605] void *tmp ; [L5606] int tmp___0 ; [L5608] tmp___0 = __VERIFIER_nondet_int() [L5609] COND TRUE tmp___0 != 0 [L5610] return ((void *)0); VAL [\old(size)=1560, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, size=1560, tmp___0=2147483648, usb_counter=0] [L5938] RET, EXPR ldv_zalloc(1560UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(1560UL)={0:0}, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, usb_counter=0] [L5938] tmp___0 = ldv_zalloc(1560UL) [L5939] ldvarg3 = (struct usb_interface *)tmp___0 [L5940] CALL ldv_initialize() [L6341] CALL ldv_set_init(LDV_SKBS) [L6193] set = set_impl [L6194] last_index = 0 VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set={24:0}, set={0:0}, set_impl={24:0}, usb_counter=0] [L6341] RET ldv_set_init(LDV_SKBS) [L5940] RET ldv_initialize() [L5941] FCALL memset((void *)(& ldvarg0), 0, 4UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, memset((void *)(& ldvarg0), 0, 4UL)={73:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, usb_counter=0] [L5942] FCALL memset((void *)(& ldvarg2), 0, 4UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, memset((void *)(& ldvarg2), 0, 4UL)={77:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, usb_counter=0] [L5943] ldv_state_variable_1 = 0 [L5944] ref_cnt = 0 [L5945] ldv_state_variable_0 = 1 [L5946] ldv_state_variable_2 = 0 VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, usb_counter=0] [L5948] tmp___1 = __VERIFIER_nondet_int() [L5950] case 0: [L6016] case 1: VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=1, usb_counter=0] [L6017] COND TRUE ldv_state_variable_0 != 0 [L6018] tmp___3 = __VERIFIER_nondet_int() [L6020] case 0: [L6028] case 1: VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=1, usb_counter=0] [L6029] COND TRUE ldv_state_variable_0 == 1 [L6030] CALL, EXPR gl620a_driver_init() [L5879] int tmp ; [L5881] CALL, EXPR ldv_usb_register_driver_13(& gl620a_driver, & __this_module, "gl620a") [L6167] ldv_func_ret_type ldv_func_res ; [L6168] int tmp ; [L6170] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L6436] return __VERIFIER_nondet_int(); [L6170] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L6170] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L6171] ldv_func_res = tmp [L6172] ldv_state_variable_1 = 1 [L6173] usb_counter = 0 [L6174] CALL ldv_usb_driver_1() [L5916] void *tmp ; VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5918] CALL, EXPR ldv_zalloc(1560UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5604] void *p ; [L5605] void *tmp ; [L5606] int tmp___0 ; [L5608] tmp___0 = __VERIFIER_nondet_int() [L5609] COND TRUE tmp___0 != 0 [L5610] return ((void *)0); VAL [\old(size)=1560, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, size=1560, tmp___0=2147483648, usb_counter=0] [L5918] RET, EXPR ldv_zalloc(1560UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_zalloc(1560UL)={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5918] tmp = ldv_zalloc(1560UL) [L5919] gl620a_driver_group1 = (struct usb_interface *)tmp VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, usb_counter=0] [L6174] RET ldv_usb_driver_1() [L6175] return (ldv_func_res); VAL [\result=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, ldv_func_arg1={23:0}, ldv_func_arg1={23:0}, ldv_func_arg2={25:26}, ldv_func_arg2={25:26}, ldv_func_arg3={20:0}, ldv_func_arg3={20:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp=0, usb_counter=0] [L5881] RET, EXPR ldv_usb_register_driver_13(& gl620a_driver, & __this_module, "gl620a") [L5881] tmp = ldv_usb_register_driver_13(& gl620a_driver, & __this_module, "gl620a") [L5882] return (tmp); VAL [\result=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp=0, usb_counter=0] [L6030] RET, EXPR gl620a_driver_init() [L6030] ldv_retval_4 = gl620a_driver_init() [L6031] COND TRUE ldv_retval_4 == 0 [L6032] ldv_state_variable_0 = 3 [L6033] ldv_state_variable_2 = 1 [L6034] CALL ldv_initialize_driver_info_2() [L5904] void *tmp ; [L5905] void *tmp___0 ; VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5907] CALL, EXPR ldv_zalloc(1472UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5604] void *p ; [L5605] void *tmp ; [L5606] int tmp___0 ; [L5608] tmp___0 = __VERIFIER_nondet_int() [L5609] COND TRUE tmp___0 != 0 [L5610] return ((void *)0); VAL [\old(size)=1472, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, size=1472, tmp___0=2147483648, usb_counter=0] [L5907] RET, EXPR ldv_zalloc(1472UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(1472UL)={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5907] tmp = ldv_zalloc(1472UL) [L5908] genelink_info_group0 = (struct usbnet *)tmp VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, usb_counter=0] [L5909] CALL, EXPR ldv_zalloc(232UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5604] void *p ; [L5605] void *tmp ; [L5606] int tmp___0 ; [L5608] tmp___0 = __VERIFIER_nondet_int() [L5609] COND TRUE tmp___0 != 0 [L5610] return ((void *)0); VAL [\old(size)=232, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, size=232, tmp___0=2147483648, usb_counter=0] [L5909] RET, EXPR ldv_zalloc(232UL) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(232UL)={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, usb_counter=0] [L5909] tmp___0 = ldv_zalloc(232UL) [L5910] genelink_info_group1 = (struct sk_buff *)tmp___0 VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, usb_counter=0] [L6034] RET ldv_initialize_driver_info_2() [L6037] COND FALSE !(ldv_retval_4 != 0) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=1, usb_counter=0] [L5948] tmp___1 = __VERIFIER_nondet_int() [L5950] case 0: [L6016] case 1: [L6052] case 2: VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, usb_counter=0] [L6053] COND TRUE ldv_state_variable_2 != 0 [L6054] tmp___4 = __VERIFIER_nondet_int() [L6056] case 0: VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=0, usb_counter=0] [L6057] COND TRUE ldv_state_variable_2 == 1 VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=0, usb_counter=0] [L6058] CALL genelink_rx_fixup(genelink_info_group0, genelink_info_group1) VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5700] struct gl_header *header ; [L5701] struct gl_packet *packet ; [L5702] struct sk_buff *gl_skb ; [L5703] u32 size ; [L5704] u32 count ; [L5705] struct _ddebug descriptor ; [L5706] long tmp ; [L5707] struct _ddebug descriptor___0 ; [L5708] long tmp___0 ; [L5709] size_t __len ; [L5710] void *__ret ; [L5711] unsigned char *tmp___2 ; [L5712] struct _ddebug descriptor___1 ; [L5713] long tmp___3 ; [L5715] EXPR skb->len [L5715] EXPR dev->net [L5715] EXPR (dev->net)->hard_header_len VAL [(dev->net)->hard_header_len=0, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, dev->net={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, skb={0:0}, skb->len=0, usb_counter=0] [L5715] COND FALSE !(skb->len < (unsigned int )(dev->net)->hard_header_len) [L5719] EXPR skb->data [L5719] header = (struct gl_header *)skb->data [L5720] EXPR header->packet_count [L5720] count = header->packet_count [L5721] COND FALSE !(count > 32U) [L5737] packet = & header->packets VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, count=2, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, header={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:4}, products={22:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, skb={0:0}, usb_counter=0] [L5738] CALL skb_pull(skb, 4U) VAL [\old(arg1)=null, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg0={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6421] CALL, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(last_index)=0, \old(size)=1, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5587] void *p ; [L5588] void *tmp ; [L5589] int tmp___0 ; [L5591] tmp___0 = __VERIFIER_nondet_int() [L5592] COND TRUE tmp___0 != 0 [L5593] return ((void *)0); VAL [\old(last_index)=0, \old(size)=1, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, size=1, tmp___0=2147483648, usb_counter=0] [L6421] RET, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(arg1)=null, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg0={0:0}, arg0={0:0}, arg1=null, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(unsigned char))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6421] return ldv_malloc(sizeof(unsigned char)); [L5738] RET skb_pull(skb, 4U) VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, count=2, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, header={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:4}, products={22:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, skb={0:0}, skb_pull(skb, 4U)={0:0}, usb_counter=0] [L5771] COND TRUE count > 1U VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, count=2, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, header={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:4}, products={22:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, skb={0:0}, usb_counter=0] [L5741] EXPR packet->packet_length [L5741] size = packet->packet_length [L5742] COND FALSE !(size > 1514U) [L5758] CALL, EXPR ldv_alloc_skb_12(size, 32U) [L6153] struct sk_buff *tmp ; VAL [\old(last_index)=0, \old(priority)=32, \old(size)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, priority=32, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, usb_counter=0] [L6155] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6325] void *skb ; [L6326] void *tmp___7 ; VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6328] CALL, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5604] void *p ; [L5605] void *tmp ; [L5606] int tmp___0 ; [L5608] tmp___0 = __VERIFIER_nondet_int() [L5609] COND FALSE !(tmp___0 != 0) [L5612] EXPR, FCALL calloc(1UL, size) [L5612] tmp = calloc(1UL, size) [L5613] p = tmp VAL [\old(last_index)=0, \old(size)=248, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, calloc(1UL, size)={46:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, p={46:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=248, tmp={46:0}, tmp___0=0, usb_counter=0] [L5614] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5583] COND FALSE !(!cond) VAL [\old(cond)=1, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, cond=1, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5614] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(last_index)=0, \old(size)=248, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, calloc(1UL, size)={46:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, p={46:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=248, tmp={46:0}, tmp___0=0, usb_counter=0] [L5615] return (p); VAL [\old(last_index)=0, \old(size)=248, \result={46:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, calloc(1UL, size)={46:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, p={46:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=248, tmp={46:0}, tmp___0=0, usb_counter=0] [L6328] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(sizeof(struct sk_buff___0 ))={46:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6328] tmp___7 = ldv_zalloc(sizeof(struct sk_buff___0 )) [L6329] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, skb={46:0}, tmp___7={46:0}, usb_counter=0] [L6330] COND FALSE !(! skb) [L6333] CALL ldv_set_add(LDV_SKBS, skb) [L6201] int i ; [L6203] i = 0 VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, e={46:0}, e={46:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={24:0}, usb_counter=0] [L6204] COND TRUE 1 VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, e={46:0}, e={46:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={24:0}, usb_counter=0] [L6205] COND FALSE !(i < last_index) VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, e={46:0}, e={46:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, i=0, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={24:0}, usb_counter=0] [L6215] COND TRUE last_index < 15 [L6216] set_impl[last_index] = e [L6217] last_index = last_index + 1 VAL [\old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, e={46:0}, e={46:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, i=0, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={24:0}, usb_counter=0] [L6333] RET ldv_set_add(LDV_SKBS, skb) [L6334] return (skb); VAL [\old(last_index)=0, \result={46:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, skb={46:0}, tmp___7={46:0}, usb_counter=0] [L6155] RET, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, \old(priority)=32, \old(size)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_skb_alloc()={46:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, priority=32, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, usb_counter=0] [L6155] tmp = ldv_skb_alloc() [L6156] COND TRUE \read(*tmp) VAL [\old(last_index)=0, \old(priority)=32, \old(size)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, priority=32, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, tmp={46:0}, usb_counter=0] [L6158] CALL, EXPR ldv_malloc(size) VAL [\old(last_index)=0, \old(size)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5587] void *p ; [L5588] void *tmp ; [L5589] int tmp___0 ; [L5591] tmp___0 = __VERIFIER_nondet_int() [L5592] COND TRUE tmp___0 != 0 [L5593] return ((void *)0); VAL [\old(last_index)=0, \old(size)=0, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, tmp___0=2147483648, usb_counter=0] [L6158] RET, EXPR ldv_malloc(size) VAL [\old(last_index)=0, \old(priority)=32, \old(size)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_malloc(size)={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, priority=32, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, tmp={46:0}, usb_counter=0] [L6158] tmp->head = ldv_malloc(size) [L6159] EXPR tmp->head [L6159] tmp->data = tmp->head [L6161] return (tmp); VAL [\old(last_index)=0, \old(priority)=32, \old(size)=0, \result={46:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, priority=32, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, tmp={46:0}, usb_counter=0] [L5758] RET, EXPR ldv_alloc_skb_12(size, 32U) [L5758] gl_skb = ldv_alloc_skb_12(size, 32U) [L5759] COND TRUE (unsigned long )gl_skb != (unsigned long )((struct sk_buff *)0) [L5760] __len = (size_t )size VAL [\old(last_index)=0, __len=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, count=2, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, gl_skb={46:0}, header={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:4}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, skb={0:0}, skb={0:0}, usb_counter=0] [L5761] CALL, EXPR skb_put(gl_skb, size) VAL [\old(arg1)=null, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg0={46:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6427] EXPR arg0->data [L6427] EXPR arg0->tail [L6427] unsigned char *ret_val = arg0->data + arg0->tail; [L6428] EXPR arg0->tail [L6428] arg0->tail += arg1 [L6429] return ret_val; VAL [\old(arg1)=null, \old(last_index)=0, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg0={46:0}, arg0={46:0}, arg1=null, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, ret_val={0:0}, set_impl={24:0}, usb_counter=0] [L5761] RET, EXPR skb_put(gl_skb, size) VAL [\old(last_index)=0, __len=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, count=2, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, gl_skb={46:0}, header={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:4}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, skb={0:0}, skb={0:0}, skb_put(gl_skb, size)={0:0}, usb_counter=0] [L5761] tmp___2 = skb_put(gl_skb, size) [L5762-L5763] EXPR, FCALL memcpy((void *)tmp___2, (void const *)(& packet->packet_data), __len) [L5762-L5763] __ret = memcpy((void *)tmp___2, (void const *)(& packet->packet_data), __len) [L5764] FCALL usbnet_skb_return(dev, gl_skb) [L5767] packet = (struct gl_packet *)(& packet->packet_data) + (unsigned long )size [L5768] count = count - 1U VAL [\old(last_index)=0, __len=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __ret={0:0}, __this_module={25:26}, count=1, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, gl_skb={46:0}, header={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:8}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, skb={0:0}, skb={0:0}, tmp___2={0:0}, usb_counter=0] [L5769] CALL skb_pull(skb, size + 4U) VAL [\old(arg1)=null, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg0={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6421] CALL, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(last_index)=0, \old(size)=1, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5587] void *p ; [L5588] void *tmp ; [L5589] int tmp___0 ; [L5591] tmp___0 = __VERIFIER_nondet_int() [L5592] COND TRUE tmp___0 != 0 [L5593] return ((void *)0); VAL [\old(last_index)=0, \old(size)=1, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, size=1, tmp___0=2147483648, usb_counter=0] [L6421] RET, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(arg1)=null, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg0={0:0}, arg0={0:0}, arg1=null, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(unsigned char))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6421] return ldv_malloc(sizeof(unsigned char)); [L5769] RET skb_pull(skb, size + 4U) VAL [\old(last_index)=0, __len=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __ret={0:0}, __this_module={25:26}, count=1, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, gl_skb={46:0}, header={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:8}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, skb={0:0}, skb={0:0}, skb_pull(skb, size + 4U)={0:0}, tmp___2={0:0}, usb_counter=0] [L5771] COND FALSE !(count > 1U) VAL [\old(last_index)=0, __len=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __ret={0:0}, __this_module={25:26}, count=1, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, gl_skb={46:0}, header={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:8}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, skb={0:0}, skb={0:0}, tmp___2={0:0}, usb_counter=0] [L5775] CALL skb_pull(skb, 4U) VAL [\old(arg1)=null, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg0={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6421] CALL, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(last_index)=0, \old(size)=1, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5587] void *p ; [L5588] void *tmp ; [L5589] int tmp___0 ; [L5591] tmp___0 = __VERIFIER_nondet_int() [L5592] COND TRUE tmp___0 != 0 [L5593] return ((void *)0); VAL [\old(last_index)=0, \old(size)=1, \result={0:0}, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, size=1, tmp___0=2147483648, usb_counter=0] [L6421] RET, EXPR ldv_malloc(sizeof(unsigned char)) VAL [\old(arg1)=null, \old(last_index)=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg0={0:0}, arg0={0:0}, arg1=null, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(unsigned char))={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L6421] return ldv_malloc(sizeof(unsigned char)); [L5775] RET skb_pull(skb, 4U) VAL [\old(last_index)=0, __len=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __ret={0:0}, __this_module={25:26}, count=1, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, gl_skb={46:0}, header={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:8}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, skb={0:0}, skb={0:0}, skb_pull(skb, 4U)={0:0}, tmp___2={0:0}, usb_counter=0] [L5776] EXPR skb->len VAL [\old(last_index)=0, __len=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __ret={0:0}, __this_module={25:26}, count=1, descriptor={55:0}, descriptor___0={72:0}, descriptor___1={63:0}, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, gl_skb={46:0}, header={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:8}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, skb={0:0}, skb={0:0}, skb->len=0, tmp___2={0:0}, usb_counter=0] [L5776] COND FALSE !(skb->len > 1514U) [L5792] return (1); [L5792] return (1); [L5792] return (1); [L5792] return (1); VAL [\old(last_index)=0, \result=1, __len=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __ret={0:0}, __this_module={25:26}, count=1, dev={0:0}, dev={0:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, gl_skb={46:0}, header={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, packet={0:8}, products={22:0}, ref_cnt=0, set_impl={24:0}, size=0, skb={0:0}, skb={0:0}, tmp___2={0:0}, usb_counter=0] [L6058] RET genelink_rx_fixup(genelink_info_group0, genelink_info_group1) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, genelink_rx_fixup(genelink_info_group0, genelink_info_group1)=1, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=0, usb_counter=0] [L6059] ldv_state_variable_2 = 1 VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=0, usb_counter=0] [L6062] COND FALSE !(ldv_state_variable_2 == 2) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=2, tmp___3=1, tmp___4=0, usb_counter=0] [L5948] tmp___1 = __VERIFIER_nondet_int() [L5950] case 0: [L6016] case 1: VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=1, tmp___4=0, usb_counter=0] [L6017] COND TRUE ldv_state_variable_0 != 0 [L6018] tmp___3 = __VERIFIER_nondet_int() [L6020] case 0: VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=0, tmp___4=0, usb_counter=0] [L6021] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L6022] CALL gl620a_driver_exit() [L5888] CALL ldv_usb_deregister_14(& gl620a_driver) [L6181] FCALL usb_deregister(arg) [L6182] ldv_state_variable_1 = 0 VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, arg={23:0}, arg={23:0}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5888] RET ldv_usb_deregister_14(& gl620a_driver) [L6022] RET gl620a_driver_exit() [L6023] ldv_state_variable_0 = 2 VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, ldvarg0={73:0}, ldvarg1={0:0}, ldvarg2={77:0}, ldvarg3={0:0}, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp={0:0}, tmp___0={0:0}, tmp___1=1, tmp___3=0, tmp___4=0, usb_counter=0] [L6112] CALL ldv_check_final_state() [L6392] int tmp___7 ; [L6394] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L6283] return (last_index == 0); VAL [\result=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={24:0}, usb_counter=0] [L6394] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L6394] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L6395] COND FALSE !(\read(tmp___7)) VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, tmp___7=0, usb_counter=0] [L6397] CALL ldv_error() VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] [L5639] reach_error() VAL [__mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __mod_usb__products_device_table=0, __this_module={25:26}, genelink_info={21:0}, genelink_info_group0={0:0}, genelink_info_group1={0:0}, gl620a_driver={23:0}, gl620a_driver_group1={0:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=0, ldv_state_variable_2=1, products={22:0}, ref_cnt=0, set_impl={24:0}, usb_counter=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.6s, OverallIterations: 10, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 1073 SdHoareTripleChecker+Valid, 7.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1065 mSDsluCounter, 13432 SdHoareTripleChecker+Invalid, 7.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10294 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 3138 mSDtfsCounter, 438 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4224 GetRequests, 4132 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 6.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1846occurred in iteration=9, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 588 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.1s SsaConstructionTime, 16.4s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 2741 NumberOfCodeBlocks, 2741 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 4206 ConstructedInterpolants, 0 QuantifiedInterpolants, 4947 SizeOfPredicates, 38 NumberOfNonLiveVariables, 16922 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 32 InterpolantComputations, 8 PerfectInterpolantSequences, 2714/2810 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-03 01:41:12,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85cceec2-27fc-4012-9041-a12b20e79f94/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample