./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs --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 84726630c8e25b12cc9a1c42ffbcb43731f626f816099a2994c8fef707cb96cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:46:28,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:46:28,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:46:28,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:46:28,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:46:28,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:46:28,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:46:28,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:46:28,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:46:28,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:46:28,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:46:28,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:46:28,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:46:28,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:46:28,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:46:28,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:46:28,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:46:28,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:46:28,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:46:28,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:46:28,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:46:28,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:46:28,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:46:28,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:46:28,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:46:28,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:46:28,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:46:28,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:46:28,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:46:28,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:46:28,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:46:28,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:46:28,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:46:28,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:46:28,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:46:28,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:46:28,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:46:28,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:46:28,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:46:28,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:46:28,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:46:28,181 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 15:46:28,226 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:46:28,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:46:28,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:46:28,231 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:46:28,231 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:46:28,231 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:46:28,232 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:46:28,232 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 15:46:28,240 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:46:28,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:46:28,242 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 15:46:28,242 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 15:46:28,242 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:46:28,243 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 15:46:28,243 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 15:46:28,243 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 15:46:28,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:46:28,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 15:46:28,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:46:28,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:46:28,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:46:28,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:46:28,247 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:46:28,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:46:28,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:46:28,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:46:28,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:46:28,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:46:28,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:28,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:46:28,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:46:28,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:46:28,252 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 15:46:28,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 15:46:28,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:46:28,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:46:28,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:46:28,254 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84726630c8e25b12cc9a1c42ffbcb43731f626f816099a2994c8fef707cb96cf [2021-11-19 15:46:28,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:46:28,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:46:28,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:46:28,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:46:28,631 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:46:28,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i [2021-11-19 15:46:28,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data/05bc74fe7/a277351063f64ee48b4e3902616d94c7/FLAG201e6b8d9 [2021-11-19 15:46:30,070 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:46:30,070 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i [2021-11-19 15:46:30,159 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data/05bc74fe7/a277351063f64ee48b4e3902616d94c7/FLAG201e6b8d9 [2021-11-19 15:46:30,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data/05bc74fe7/a277351063f64ee48b4e3902616d94c7 [2021-11-19 15:46:30,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:46:30,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:46:30,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:30,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:46:30,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:46:30,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:30" (1/1) ... [2021-11-19 15:46:30,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35277788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:30, skipping insertion in model container [2021-11-19 15:46:30,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:30" (1/1) ... [2021-11-19 15:46:30,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:46:30,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:46:32,914 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:33,215 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:33,313 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:36,790 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 15:46:37,336 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722335,722348] [2021-11-19 15:46:37,340 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722482,722495] [2021-11-19 15:46:37,350 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722621,722634] [2021-11-19 15:46:37,350 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722779,722792] [2021-11-19 15:46:37,432 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:37,549 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 15:46:37,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60650f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:37, skipping insertion in model container [2021-11-19 15:46:37,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:37,551 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 15:46:37,553 INFO L158 Benchmark]: Toolchain (without parser) took 6915.27ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 67.7MB in the beginning and 82.3MB in the end (delta: -14.7MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2021-11-19 15:46:37,553 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 55.8MB in the end (delta: 29.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 15:46:37,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6912.10ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 67.7MB in the beginning and 82.3MB in the end (delta: -14.7MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2021-11-19 15:46:37,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 55.8MB in the end (delta: 29.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6912.10ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 67.7MB in the beginning and 82.3MB in the end (delta: -14.7MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 8205]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs --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 84726630c8e25b12cc9a1c42ffbcb43731f626f816099a2994c8fef707cb96cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 15:46:40,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 15:46:40,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 15:46:40,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 15:46:40,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 15:46:40,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 15:46:40,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 15:46:40,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 15:46:40,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 15:46:40,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 15:46:40,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 15:46:40,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 15:46:40,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 15:46:40,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 15:46:40,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 15:46:40,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 15:46:40,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 15:46:40,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 15:46:40,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 15:46:40,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 15:46:40,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 15:46:40,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 15:46:40,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 15:46:40,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 15:46:40,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 15:46:40,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 15:46:40,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 15:46:40,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 15:46:40,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 15:46:40,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 15:46:40,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 15:46:40,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 15:46:40,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 15:46:40,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 15:46:40,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 15:46:40,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 15:46:40,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 15:46:40,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 15:46:40,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 15:46:40,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 15:46:40,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 15:46:40,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 15:46:40,371 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 15:46:40,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 15:46:40,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 15:46:40,373 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 15:46:40,373 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 15:46:40,373 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 15:46:40,373 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 15:46:40,374 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 15:46:40,374 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 15:46:40,374 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 15:46:40,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 15:46:40,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 15:46:40,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 15:46:40,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 15:46:40,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 15:46:40,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 15:46:40,378 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 15:46:40,378 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 15:46:40,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 15:46:40,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 15:46:40,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 15:46:40,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 15:46:40,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 15:46:40,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 15:46:40,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:40,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 15:46:40,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 15:46:40,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 15:46:40,381 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 15:46:40,381 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 15:46:40,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 15:46:40,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 15:46:40,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 15:46:40,382 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_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84726630c8e25b12cc9a1c42ffbcb43731f626f816099a2994c8fef707cb96cf [2021-11-19 15:46:40,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 15:46:40,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 15:46:40,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 15:46:40,874 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 15:46:40,874 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 15:46:40,877 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i [2021-11-19 15:46:40,980 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data/dd7d09138/0bc554c234d2489bba340fa14b00263e/FLAGd3d9f83d3 [2021-11-19 15:46:42,484 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 15:46:42,485 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i [2021-11-19 15:46:42,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data/dd7d09138/0bc554c234d2489bba340fa14b00263e/FLAGd3d9f83d3 [2021-11-19 15:46:42,988 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/data/dd7d09138/0bc554c234d2489bba340fa14b00263e [2021-11-19 15:46:42,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 15:46:42,993 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 15:46:42,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:42,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 15:46:43,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 15:46:43,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:42" (1/1) ... [2021-11-19 15:46:43,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c3d2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:43, skipping insertion in model container [2021-11-19 15:46:43,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:46:42" (1/1) ... [2021-11-19 15:46:43,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 15:46:43,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:46:49,605 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722335,722348] [2021-11-19 15:46:49,609 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722482,722495] [2021-11-19 15:46:49,610 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722621,722634] [2021-11-19 15:46:49,611 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722779,722792] [2021-11-19 15:46:49,670 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:49,815 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 15:46:50,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 15:46:50,935 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722335,722348] [2021-11-19 15:46:50,936 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722482,722495] [2021-11-19 15:46:50,936 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722621,722634] [2021-11-19 15:46:50,937 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722779,722792] [2021-11-19 15:46:50,943 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:51,014 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 15:46:52,026 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722335,722348] [2021-11-19 15:46:52,028 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722482,722495] [2021-11-19 15:46:52,042 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722621,722634] [2021-11-19 15:46:52,042 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_abdd7c55-64ab-4087-8bb4-10da248234f6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i[722779,722792] [2021-11-19 15:46:52,053 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 15:46:52,499 INFO L208 MainTranslator]: Completed translation [2021-11-19 15:46:52,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52 WrapperNode [2021-11-19 15:46:52,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 15:46:52,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 15:46:52,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 15:46:52,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 15:46:52,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:52,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:53,463 INFO L137 Inliner]: procedures = 486, calls = 6567, calls flagged for inlining = 277, calls inlined = 258, statements flattened = 15605 [2021-11-19 15:46:53,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 15:46:53,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 15:46:53,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 15:46:53,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 15:46:53,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:53,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:53,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:53,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:53,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:53,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:54,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:54,209 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 15:46:54,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 15:46:54,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 15:46:54,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 15:46:54,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (1/1) ... [2021-11-19 15:46:54,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 15:46:54,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 15:46:54,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 15:46:54,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 15:46:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_check_bssid [2021-11-19 15:46:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_check_bssid [2021-11-19 15:46:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_bb_reg [2021-11-19 15:46:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_bb_reg [2021-11-19 15:46:54,306 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-19 15:46:54,306 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-19 15:46:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 15:46:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 15:46:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-11-19 15:46:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-11-19 15:46:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_deinit_sw_vars [2021-11-19 15:46:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_deinit_sw_vars [2021-11-19 15:46:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2021-11-19 15:46:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2021-11-19 15:46:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-11-19 15:46:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-11-19 15:46:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 15:46:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 15:46:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 15:46:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 15:46:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-19 15:46:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-19 15:46:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_bw_mode [2021-11-19 15:46:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_bw_mode [2021-11-19 15:46:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 15:46:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 15:46:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 15:46:54,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 15:46:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 15:46:54,312 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 15:46:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_update_interrupt_mask [2021-11-19 15:46:54,313 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_update_interrupt_mask [2021-11-19 15:46:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_rf_serial_read [2021-11-19 15:46:54,313 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_rf_serial_read [2021-11-19 15:46:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 15:46:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 15:46:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 15:46:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 15:46:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_led_control [2021-11-19 15:46:54,315 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_led_control [2021-11-19 15:46:54,315 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_chk_fwcmd_iodone [2021-11-19 15:46:54,315 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_chk_fwcmd_iodone [2021-11-19 15:46:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_hw_reg [2021-11-19 15:46:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_hw_reg [2021-11-19 15:46:54,317 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_nullfunc [2021-11-19 15:46:54,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_nullfunc [2021-11-19 15:46:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-19 15:46:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-19 15:46:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2021-11-19 15:46:54,318 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2021-11-19 15:46:54,318 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2021-11-19 15:46:54,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2021-11-19 15:46:54,319 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 15:46:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 15:46:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2021-11-19 15:46:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2021-11-19 15:46:54,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 15:46:54,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 15:46:54,321 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_beacon_hwreg [2021-11-19 15:46:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_beacon_hwreg [2021-11-19 15:46:54,322 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 15:46:54,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 15:46:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_calculate_bit_shift [2021-11-19 15:46:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_calculate_bit_shift [2021-11-19 15:46:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 15:46:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 15:46:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 15:46:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 15:46:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-19 15:46:54,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-19 15:46:54,526 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2021-11-19 15:46:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2021-11-19 15:46:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-19 15:46:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-19 15:46:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_fw_cmd [2021-11-19 15:46:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_fw_cmd [2021-11-19 15:46:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_tx_polling [2021-11-19 15:46:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_tx_polling [2021-11-19 15:46:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-19 15:46:54,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-19 15:46:54,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 15:46:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-19 15:46:54,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-19 15:46:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-19 15:46:54,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-19 15:46:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_read_eeprom_info [2021-11-19 15:46:54,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_read_eeprom_info [2021-11-19 15:46:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-19 15:46:54,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-19 15:46:54,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-19 15:46:54,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-19 15:46:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 15:46:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92se_set_media_status [2021-11-19 15:46:54,529 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92se_set_media_status [2021-11-19 15:46:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 15:46:54,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 15:46:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 15:46:54,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 15:46:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 15:46:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 15:46:54,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 15:46:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 15:46:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:46:54,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 15:46:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 15:46:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_set_sysclk [2021-11-19 15:46:54,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_set_sysclk [2021-11-19 15:46:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_sw_led_off [2021-11-19 15:46:54,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_sw_led_off [2021-11-19 15:46:54,530 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92se_halset_sysclk [2021-11-19 15:46:54,530 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92se_halset_sysclk [2021-11-19 15:46:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 15:46:54,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 15:46:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_hw_init [2021-11-19 15:46:54,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_hw_init [2021-11-19 15:46:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8192se_gpiobit3_cfg_inputmode [2021-11-19 15:46:54,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8192se_gpiobit3_cfg_inputmode [2021-11-19 15:46:54,531 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2021-11-19 15:46:54,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2021-11-19 15:46:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_card_disable [2021-11-19 15:46:54,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_card_disable [2021-11-19 15:46:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 15:46:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 15:46:54,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 15:46:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_get_hw_reg [2021-11-19 15:46:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_get_hw_reg [2021-11-19 15:46:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_dm_watchdog [2021-11-19 15:46:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_dm_watchdog [2021-11-19 15:46:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_config_rf [2021-11-19 15:46:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_config_rf [2021-11-19 15:46:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 15:46:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_dm_init_edca_turbo [2021-11-19 15:46:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_dm_init_edca_turbo [2021-11-19 15:46:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 15:46:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 15:46:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 15:46:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 15:46:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 15:46:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 15:46:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 15:46:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2021-11-19 15:46:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2021-11-19 15:46:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 15:46:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 15:46:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-19 15:46:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-19 15:46:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-19 15:46:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-19 15:46:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_beacon_interval [2021-11-19 15:46:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_beacon_interval [2021-11-19 15:46:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_txpower [2021-11-19 15:46:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_txpower [2021-11-19 15:46:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_suspend [2021-11-19 15:46:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_suspend [2021-11-19 15:46:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_firmware_get_nextstatus [2021-11-19 15:46:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_firmware_get_nextstatus [2021-11-19 15:46:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-11-19 15:46:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-11-19 15:46:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_beacon_related_registers [2021-11-19 15:46:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_beacon_related_registers [2021-11-19 15:46:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-11-19 15:46:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-11-19 15:46:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 15:46:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 15:46:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 15:46:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 15:46:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2021-11-19 15:46:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2021-11-19 15:46:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_config_bb [2021-11-19 15:46:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_config_bb [2021-11-19 15:46:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_enable_hw_security_config [2021-11-19 15:46:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_enable_hw_security_config [2021-11-19 15:46:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-19 15:46:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-19 15:46:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_init_sw_leds [2021-11-19 15:46:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_init_sw_leds [2021-11-19 15:46:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_check_ephy_switchready [2021-11-19 15:46:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_check_ephy_switchready [2021-11-19 15:46:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 15:46:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_set_qos [2021-11-19 15:46:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_set_qos [2021-11-19 15:46:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-19 15:46:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-19 15:46:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 15:46:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92se_rf_onoff_detect [2021-11-19 15:46:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92se_rf_onoff_detect [2021-11-19 15:46:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_tx_fill_cmddesc [2021-11-19 15:46:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_tx_fill_cmddesc [2021-11-19 15:46:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_set_rfhalt [2021-11-19 15:46:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_set_rfhalt [2021-11-19 15:46:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_cmd_send_packet [2021-11-19 15:46:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_cmd_send_packet [2021-11-19 15:46:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-11-19 15:46:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-11-19 15:46:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-19 15:46:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-19 15:46:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 15:46:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 15:46:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 15:46:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 15:46:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_enable_interrupt [2021-11-19 15:46:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_enable_interrupt [2021-11-19 15:46:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 15:46:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_phy_set_sw_chnl_cmdarray [2021-11-19 15:46:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_phy_set_sw_chnl_cmdarray [2021-11-19 15:46:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-19 15:46:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-19 15:46:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-19 15:46:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-19 15:46:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92se_init_led [2021-11-19 15:46:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92se_init_led [2021-11-19 15:46:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 15:46:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 15:46:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___5 [2021-11-19 15:46:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___5 [2021-11-19 15:46:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl92se_driver_exit_7_2 [2021-11-19 15:46:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl92se_driver_exit_7_2 [2021-11-19 15:46:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-19 15:46:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-19 15:46:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2021-11-19 15:46:54,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2021-11-19 15:46:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-19 15:46:54,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-19 15:46:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-19 15:46:54,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-19 15:46:54,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:46:54,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 15:46:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl92s_fw_set_rqpn [2021-11-19 15:46:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl92s_fw_set_rqpn [2021-11-19 15:46:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2021-11-19 15:46:54,577 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2021-11-19 15:46:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 15:46:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 15:46:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 15:46:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 15:46:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-19 15:46:54,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-19 15:46:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 15:46:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 15:46:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2021-11-19 15:46:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2021-11-19 15:46:54,591 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_query_bb_reg [2021-11-19 15:46:54,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_query_bb_reg [2021-11-19 15:46:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_set_rf_reg [2021-11-19 15:46:54,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_set_rf_reg [2021-11-19 15:46:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_scan_operation_backup [2021-11-19 15:46:54,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_scan_operation_backup [2021-11-19 15:46:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2021-11-19 15:46:54,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2021-11-19 15:46:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-19 15:46:54,593 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-19 15:46:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_disable_interrupt [2021-11-19 15:46:54,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_disable_interrupt [2021-11-19 15:46:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-19 15:46:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-19 15:46:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-19 15:46:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-19 15:46:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-19 15:46:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-19 15:46:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_update_hal_rate_tbl [2021-11-19 15:46:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_update_hal_rate_tbl [2021-11-19 15:46:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-19 15:46:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-19 15:46:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 15:46:54,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 15:46:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_resume [2021-11-19 15:46:54,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_resume [2021-11-19 15:46:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-11-19 15:46:54,597 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-11-19 15:46:54,597 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_sw_led_on [2021-11-19 15:46:54,597 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_sw_led_on [2021-11-19 15:46:54,597 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-19 15:46:54,597 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-19 15:46:54,597 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92se_update_channel_access_setting [2021-11-19 15:46:54,598 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92se_update_channel_access_setting [2021-11-19 15:46:54,598 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2021-11-19 15:46:54,598 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2021-11-19 15:46:54,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 15:46:54,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 15:46:54,598 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_init_sw_vars [2021-11-19 15:46:54,599 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_init_sw_vars [2021-11-19 15:46:54,599 INFO L130 BoogieDeclarations]: Found specification of procedure rtl92s_phy_query_rf_reg [2021-11-19 15:46:54,599 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl92s_phy_query_rf_reg [2021-11-19 15:46:54,599 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-19 15:46:54,599 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-19 15:46:56,434 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 15:46:56,438 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 15:46:57,477 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 15:48:44,196 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 15:49:00,027 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 15:49:00,087 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 15:49:00,088 INFO L301 CfgBuilder]: Removed 27 assume(true) statements. [2021-11-19 15:49:00,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:49:00 BoogieIcfgContainer [2021-11-19 15:49:00,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 15:49:00,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 15:49:00,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 15:49:00,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 15:49:00,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:46:42" (1/3) ... [2021-11-19 15:49:00,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ca034a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:49:00, skipping insertion in model container [2021-11-19 15:49:00,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:46:52" (2/3) ... [2021-11-19 15:49:00,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ca034a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:49:00, skipping insertion in model container [2021-11-19 15:49:00,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:49:00" (3/3) ... [2021-11-19 15:49:00,110 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8192se-rtl8192se.cil.i [2021-11-19 15:49:00,117 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 15:49:00,117 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 15:49:00,223 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 15:49:00,230 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 15:49:00,231 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 15:49:00,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 5672 states, 3905 states have (on average 1.3743918053777209) internal successors, (5367), 4040 states have internal predecessors, (5367), 1661 states have call successors, (1661), 127 states have call predecessors, (1661), 126 states have return successors, (1651), 1579 states have call predecessors, (1651), 1651 states have call successors, (1651) [2021-11-19 15:49:00,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-19 15:49:00,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:49:00,416 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:49:00,417 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:49:00,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:49:00,427 INFO L85 PathProgramCache]: Analyzing trace with hash 812296159, now seen corresponding path program 1 times [2021-11-19 15:49:00,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:49:00,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1582178920] [2021-11-19 15:49:00,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:49:00,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:49:00,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:49:00,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:49:00,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 15:49:14,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:49:15,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 7439 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:49:15,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:49:17,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 2925 trivial. 0 not checked. [2021-11-19 15:49:17,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:49:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-19 15:49:18,621 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:49:18,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1582178920] [2021-11-19 15:49:18,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1582178920] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:49:18,622 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:49:18,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:49:18,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525013369] [2021-11-19 15:49:18,626 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:49:18,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:49:18,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:49:18,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:49:18,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:49:18,705 INFO L87 Difference]: Start difference. First operand has 5672 states, 3905 states have (on average 1.3743918053777209) internal successors, (5367), 4040 states have internal predecessors, (5367), 1661 states have call successors, (1661), 127 states have call predecessors, (1661), 126 states have return successors, (1651), 1579 states have call predecessors, (1651), 1651 states have call successors, (1651) Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 15:49:19,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:49:21,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:50:03,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:50:03,712 INFO L93 Difference]: Finished difference Result 16544 states and 25773 transitions. [2021-11-19 15:50:03,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:50:03,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 314 [2021-11-19 15:50:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:50:04,081 INFO L225 Difference]: With dead ends: 16544 [2021-11-19 15:50:04,081 INFO L226 Difference]: Without dead ends: 10676 [2021-11-19 15:50:04,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 624 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:50:04,170 INFO L933 BasicCegarLoop]: 8331 mSDtfsCounter, 16235 mSDsluCounter, 10074 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 2163 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16235 SdHoareTripleChecker+Valid, 18405 SdHoareTripleChecker+Invalid, 4424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2163 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2021-11-19 15:50:04,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16235 Valid, 18405 Invalid, 4424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2163 Valid, 2260 Invalid, 1 Unknown, 0 Unchecked, 43.7s Time] [2021-11-19 15:50:04,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10676 states. [2021-11-19 15:50:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10676 to 10668. [2021-11-19 15:50:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10668 states, 7648 states have (on average 1.3513336820083681) internal successors, (10335), 7789 states have internal predecessors, (10335), 2711 states have call successors, (2711), 308 states have call predecessors, (2711), 307 states have return successors, (2708), 2633 states have call predecessors, (2708), 2708 states have call successors, (2708) [2021-11-19 15:50:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10668 states to 10668 states and 15754 transitions. [2021-11-19 15:50:05,414 INFO L78 Accepts]: Start accepts. Automaton has 10668 states and 15754 transitions. Word has length 314 [2021-11-19 15:50:05,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:50:05,422 INFO L470 AbstractCegarLoop]: Abstraction has 10668 states and 15754 transitions. [2021-11-19 15:50:05,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 15:50:05,425 INFO L276 IsEmpty]: Start isEmpty. Operand 10668 states and 15754 transitions. [2021-11-19 15:50:05,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-19 15:50:05,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:50:05,449 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:50:05,670 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forcibly destroying the process [2021-11-19 15:50:05,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 15:50:05,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:50:05,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:50:05,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:50:05,702 INFO L85 PathProgramCache]: Analyzing trace with hash 302809928, now seen corresponding path program 1 times [2021-11-19 15:50:05,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:50:05,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242936895] [2021-11-19 15:50:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:50:05,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:50:05,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:50:05,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:50:05,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 15:50:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:50:20,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 7475 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:50:20,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:50:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 2925 trivial. 0 not checked. [2021-11-19 15:50:22,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:50:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3003 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-19 15:50:23,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:50:23,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242936895] [2021-11-19 15:50:23,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242936895] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:50:23,947 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:50:23,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:50:23,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442598480] [2021-11-19 15:50:23,948 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:50:23,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:50:23,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:50:23,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:50:23,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:50:23,954 INFO L87 Difference]: Start difference. First operand 10668 states and 15754 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 15:50:24,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:50:27,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:51:02,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:51:02,871 INFO L93 Difference]: Finished difference Result 35049 states and 51787 transitions. [2021-11-19 15:51:02,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:51:02,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 325 [2021-11-19 15:51:02,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:51:03,145 INFO L225 Difference]: With dead ends: 35049 [2021-11-19 15:51:03,145 INFO L226 Difference]: Without dead ends: 24438 [2021-11-19 15:51:03,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 646 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:51:03,227 INFO L933 BasicCegarLoop]: 7152 mSDtfsCounter, 13748 mSDsluCounter, 8565 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 1804 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13748 SdHoareTripleChecker+Valid, 15717 SdHoareTripleChecker+Invalid, 3754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1804 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.3s IncrementalHoareTripleChecker+Time [2021-11-19 15:51:03,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13748 Valid, 15717 Invalid, 3754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1804 Valid, 1949 Invalid, 1 Unknown, 0 Unchecked, 37.3s Time] [2021-11-19 15:51:03,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24438 states. [2021-11-19 15:51:05,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24438 to 24420. [2021-11-19 15:51:05,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24420 states, 17531 states have (on average 1.352062061491073) internal successors, (23703), 17864 states have internal predecessors, (23703), 6176 states have call successors, (6176), 714 states have call predecessors, (6176), 711 states have return successors, (6173), 5988 states have call predecessors, (6173), 6173 states have call successors, (6173) [2021-11-19 15:51:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24420 states to 24420 states and 36052 transitions. [2021-11-19 15:51:05,689 INFO L78 Accepts]: Start accepts. Automaton has 24420 states and 36052 transitions. Word has length 325 [2021-11-19 15:51:05,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:51:05,692 INFO L470 AbstractCegarLoop]: Abstraction has 24420 states and 36052 transitions. [2021-11-19 15:51:05,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-19 15:51:05,693 INFO L276 IsEmpty]: Start isEmpty. Operand 24420 states and 36052 transitions. [2021-11-19 15:51:05,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-19 15:51:05,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:51:05,710 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:51:05,926 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forcibly destroying the process [2021-11-19 15:51:05,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 15:51:05,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:51:05,975 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:51:05,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:51:05,976 INFO L85 PathProgramCache]: Analyzing trace with hash -601308340, now seen corresponding path program 1 times [2021-11-19 15:51:05,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:51:05,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540915585] [2021-11-19 15:51:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:51:05,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:51:05,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:51:05,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:51:06,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 15:51:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:51:20,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 7500 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:51:20,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:51:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3007 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 2929 trivial. 0 not checked. [2021-11-19 15:51:22,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:51:23,983 INFO L134 CoverageAnalysis]: Checked inductivity of 3007 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3007 trivial. 0 not checked. [2021-11-19 15:51:23,983 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:51:23,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540915585] [2021-11-19 15:51:23,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540915585] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:51:23,984 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:51:23,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 15:51:23,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791640009] [2021-11-19 15:51:23,984 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:51:23,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:51:23,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:51:23,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:51:23,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:51:23,987 INFO L87 Difference]: Start difference. First operand 24420 states and 36052 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-19 15:51:26,984 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:51:29,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:51:29,179 INFO L93 Difference]: Finished difference Result 69209 states and 102222 transitions. [2021-11-19 15:51:29,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:51:29,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 346 [2021-11-19 15:51:29,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:51:29,735 INFO L225 Difference]: With dead ends: 69209 [2021-11-19 15:51:29,749 INFO L226 Difference]: Without dead ends: 44846 [2021-11-19 15:51:29,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 689 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 15:51:29,866 INFO L933 BasicCegarLoop]: 6260 mSDtfsCounter, 5157 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5157 SdHoareTripleChecker+Valid, 11581 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:51:29,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5157 Valid, 11581 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-19 15:51:29,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44846 states. [2021-11-19 15:51:33,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44846 to 44831. [2021-11-19 15:51:33,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44831 states, 32210 states have (on average 1.3517851598882336) internal successors, (43541), 32836 states have internal predecessors, (43541), 11316 states have call successors, (11316), 1308 states have call predecessors, (11316), 1303 states have return successors, (11313), 10959 states have call predecessors, (11313), 11313 states have call successors, (11313) [2021-11-19 15:51:34,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44831 states to 44831 states and 66170 transitions. [2021-11-19 15:51:34,487 INFO L78 Accepts]: Start accepts. Automaton has 44831 states and 66170 transitions. Word has length 346 [2021-11-19 15:51:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:51:34,489 INFO L470 AbstractCegarLoop]: Abstraction has 44831 states and 66170 transitions. [2021-11-19 15:51:34,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-19 15:51:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 44831 states and 66170 transitions. [2021-11-19 15:51:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-11-19 15:51:34,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:51:34,713 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 26, 26, 26, 26, 26, 26, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:51:34,914 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2021-11-19 15:51:34,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 15:51:34,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:51:34,986 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:51:34,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:51:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1163176331, now seen corresponding path program 1 times [2021-11-19 15:51:35,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:51:35,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654228589] [2021-11-19 15:51:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:51:35,005 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:51:35,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:51:35,006 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:51:35,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 15:51:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:51:50,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 7565 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 15:51:50,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:52:01,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3290 trivial. 0 not checked. [2021-11-19 15:52:01,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:52:05,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3290 trivial. 0 not checked. [2021-11-19 15:52:05,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:52:05,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654228589] [2021-11-19 15:52:05,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654228589] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:52:05,520 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:52:05,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 15:52:05,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987631560] [2021-11-19 15:52:05,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:52:05,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 15:52:05,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:52:05,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 15:52:05,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 15:52:05,523 INFO L87 Difference]: Start difference. First operand 44831 states and 66170 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-19 15:52:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:52:08,183 INFO L93 Difference]: Finished difference Result 44831 states and 66170 transitions. [2021-11-19 15:52:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:52:08,184 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 371 [2021-11-19 15:52:08,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:52:08,579 INFO L225 Difference]: With dead ends: 44831 [2021-11-19 15:52:08,579 INFO L226 Difference]: Without dead ends: 44760 [2021-11-19 15:52:08,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 737 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 15:52:08,603 INFO L933 BasicCegarLoop]: 5362 mSDtfsCounter, 5224 mSDsluCounter, 5362 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5224 SdHoareTripleChecker+Valid, 10724 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 15:52:08,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5224 Valid, 10724 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 15:52:08,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44760 states. [2021-11-19 15:52:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44760 to 44712. [2021-11-19 15:52:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44712 states, 32133 states have (on average 1.3509476239380076) internal successors, (43410), 32741 states have internal predecessors, (43410), 11277 states have call successors, (11277), 1301 states have call predecessors, (11277), 1301 states have return successors, (11277), 10942 states have call predecessors, (11277), 11277 states have call successors, (11277) [2021-11-19 15:52:12,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44712 states to 44712 states and 65964 transitions. [2021-11-19 15:52:12,502 INFO L78 Accepts]: Start accepts. Automaton has 44712 states and 65964 transitions. Word has length 371 [2021-11-19 15:52:12,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:52:12,504 INFO L470 AbstractCegarLoop]: Abstraction has 44712 states and 65964 transitions. [2021-11-19 15:52:12,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-19 15:52:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 44712 states and 65964 transitions. [2021-11-19 15:52:12,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-11-19 15:52:12,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:52:12,620 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 26, 26, 26, 26, 26, 26, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:52:12,840 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forcibly destroying the process [2021-11-19 15:52:12,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 15:52:12,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:52:12,883 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:52:12,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:52:12,884 INFO L85 PathProgramCache]: Analyzing trace with hash -695863208, now seen corresponding path program 1 times [2021-11-19 15:52:12,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:52:12,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961490555] [2021-11-19 15:52:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:52:12,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:52:12,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:52:12,899 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:52:12,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 15:52:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:52:29,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 7645 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:52:29,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:52:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3475 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 3102 trivial. 0 not checked. [2021-11-19 15:52:32,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:52:34,242 INFO L134 CoverageAnalysis]: Checked inductivity of 3475 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3462 trivial. 0 not checked. [2021-11-19 15:52:34,244 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:52:34,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961490555] [2021-11-19 15:52:34,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961490555] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:52:34,245 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:52:34,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:52:34,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878865535] [2021-11-19 15:52:34,246 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:52:34,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:52:34,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:52:34,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:52:34,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:52:34,252 INFO L87 Difference]: Start difference. First operand 44712 states and 65964 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 15:52:35,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:52:37,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:53:12,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:53:12,706 INFO L93 Difference]: Finished difference Result 126854 states and 187191 transitions. [2021-11-19 15:53:12,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:53:12,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) Word has length 407 [2021-11-19 15:53:12,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:53:13,318 INFO L225 Difference]: With dead ends: 126854 [2021-11-19 15:53:13,318 INFO L226 Difference]: Without dead ends: 85542 [2021-11-19 15:53:13,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:53:13,897 INFO L933 BasicCegarLoop]: 11156 mSDtfsCounter, 10471 mSDsluCounter, 8527 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 937 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10471 SdHoareTripleChecker+Valid, 19683 SdHoareTripleChecker+Invalid, 2878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 937 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2021-11-19 15:53:13,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10471 Valid, 19683 Invalid, 2878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [937 Valid, 1940 Invalid, 1 Unknown, 0 Unchecked, 34.8s Time] [2021-11-19 15:53:14,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85542 states. [2021-11-19 15:53:19,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85542 to 85534. [2021-11-19 15:53:19,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85534 states, 61453 states have (on average 1.3506582266122078) internal successors, (83002), 62625 states have internal predecessors, (83002), 21585 states have call successors, (21585), 2495 states have call predecessors, (21585), 2495 states have return successors, (21585), 20938 states have call predecessors, (21585), 21585 states have call successors, (21585) [2021-11-19 15:53:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85534 states to 85534 states and 126172 transitions. [2021-11-19 15:53:20,065 INFO L78 Accepts]: Start accepts. Automaton has 85534 states and 126172 transitions. Word has length 407 [2021-11-19 15:53:20,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:53:20,066 INFO L470 AbstractCegarLoop]: Abstraction has 85534 states and 126172 transitions. [2021-11-19 15:53:20,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 4 states have call successors, (47), 3 states have call predecessors, (47), 3 states have return successors, (46), 4 states have call predecessors, (46), 4 states have call successors, (46) [2021-11-19 15:53:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand 85534 states and 126172 transitions. [2021-11-19 15:53:20,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-19 15:53:20,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:53:20,171 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 26, 26, 26, 26, 26, 26, 6, 6, 6, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:53:20,397 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2021-11-19 15:53:20,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 15:53:20,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:53:20,424 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:53:20,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:53:20,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1294159991, now seen corresponding path program 1 times [2021-11-19 15:53:20,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:53:20,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761930351] [2021-11-19 15:53:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:53:20,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:53:20,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:53:20,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:53:20,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 15:53:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:53:35,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 7655 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:53:35,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:53:37,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 3192 trivial. 0 not checked. [2021-11-19 15:53:37,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:53:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3421 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 3405 trivial. 0 not checked. [2021-11-19 15:53:39,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:53:39,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761930351] [2021-11-19 15:53:39,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761930351] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:53:39,005 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 15:53:39,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 15:53:39,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562072221] [2021-11-19 15:53:39,006 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:53:39,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 15:53:39,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:53:39,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 15:53:39,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:53:39,008 INFO L87 Difference]: Start difference. First operand 85534 states and 126172 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-19 15:53:41,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:54:20,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:54:20,247 INFO L93 Difference]: Finished difference Result 249294 states and 367845 transitions. [2021-11-19 15:54:20,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 15:54:20,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) Word has length 424 [2021-11-19 15:54:20,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:54:21,404 INFO L225 Difference]: With dead ends: 249294 [2021-11-19 15:54:21,405 INFO L226 Difference]: Without dead ends: 167160 [2021-11-19 15:54:22,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 844 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 15:54:22,029 INFO L933 BasicCegarLoop]: 11285 mSDtfsCounter, 10580 mSDsluCounter, 8648 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 930 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10580 SdHoareTripleChecker+Valid, 19933 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 930 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time [2021-11-19 15:54:22,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10580 Valid, 19933 Invalid, 2817 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [930 Valid, 1886 Invalid, 1 Unknown, 0 Unchecked, 33.2s Time] [2021-11-19 15:54:22,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167160 states. [2021-11-19 15:54:34,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167160 to 167156. [2021-11-19 15:54:34,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167156 states, 120147 states have (on average 1.3511115550117772) internal successors, (162332), 122423 states have internal predecessors, (162332), 42147 states have call successors, (42147), 4861 states have call predecessors, (42147), 4861 states have return successors, (42147), 40900 states have call predecessors, (42147), 42147 states have call successors, (42147) [2021-11-19 15:54:35,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167156 states to 167156 states and 246626 transitions. [2021-11-19 15:54:35,601 INFO L78 Accepts]: Start accepts. Automaton has 167156 states and 246626 transitions. Word has length 424 [2021-11-19 15:54:35,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 15:54:35,602 INFO L470 AbstractCegarLoop]: Abstraction has 167156 states and 246626 transitions. [2021-11-19 15:54:35,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 4 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (50), 4 states have call predecessors, (50), 4 states have call successors, (50) [2021-11-19 15:54:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 167156 states and 246626 transitions. [2021-11-19 15:54:35,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-11-19 15:54:35,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 15:54:35,749 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 26, 26, 26, 26, 26, 26, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 15:54:35,973 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forcibly destroying the process [2021-11-19 15:54:36,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 15:54:36,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 15:54:36,022 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 15:54:36,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 15:54:36,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1114213696, now seen corresponding path program 1 times [2021-11-19 15:54:36,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 15:54:36,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229173731] [2021-11-19 15:54:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:54:36,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 15:54:36,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 15:54:36,036 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 15:54:36,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 15:54:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:54:51,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 7692 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 15:54:51,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:54:58,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3658 backedges. 537 proven. 3 refuted. 0 times theorem prover too weak. 3118 trivial. 0 not checked. [2021-11-19 15:54:58,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:55:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3658 backedges. 45 proven. 24 refuted. 0 times theorem prover too weak. 3589 trivial. 0 not checked. [2021-11-19 15:55:05,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 15:55:05,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229173731] [2021-11-19 15:55:05,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229173731] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 15:55:05,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [254397595] [2021-11-19 15:55:05,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 15:55:05,434 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 15:55:05,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 15:55:05,436 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 15:55:05,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_abdd7c55-64ab-4087-8bb4-10da248234f6/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-19 15:55:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 15:55:09,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 7692 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 15:55:09,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 15:55:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3658 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 3511 trivial. 0 not checked. [2021-11-19 15:55:12,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 15:55:14,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3658 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3647 trivial. 0 not checked. [2021-11-19 15:55:14,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [254397595] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 15:55:14,173 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 15:55:14,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 23 [2021-11-19 15:55:14,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906903895] [2021-11-19 15:55:14,174 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 15:55:14,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 15:55:14,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 15:55:14,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 15:55:14,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-19 15:55:14,177 INFO L87 Difference]: Start difference. First operand 167156 states and 246626 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-19 15:55:17,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.96s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 15:55:29,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 15:55:29,605 INFO L93 Difference]: Finished difference Result 411851 states and 607851 transitions. [2021-11-19 15:55:29,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 15:55:29,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 449 [2021-11-19 15:55:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 15:55:31,731 INFO L225 Difference]: With dead ends: 411851 [2021-11-19 15:55:31,732 INFO L226 Difference]: Without dead ends: 248095