./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/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 b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:26:35,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:26:35,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:26:35,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:26:35,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:26:35,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:26:35,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:26:35,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:26:35,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:26:35,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:26:35,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:26:35,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:26:35,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:26:36,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:26:36,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:26:36,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:26:36,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:26:36,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:26:36,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:26:36,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:26:36,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:26:36,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:26:36,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:26:36,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:26:36,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:26:36,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:26:36,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:26:36,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:26:36,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:26:36,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:26:36,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:26:36,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:26:36,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:26:36,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:26:36,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:26:36,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:26:36,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:26:36,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:26:36,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:26:36,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:26:36,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:26:36,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:26:36,102 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:26:36,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:26:36,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:26:36,104 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:26:36,104 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:26:36,104 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:26:36,104 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:26:36,104 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:26:36,105 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:26:36,105 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:26:36,112 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:26:36,112 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:26:36,113 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:26:36,113 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:26:36,113 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:26:36,113 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:26:36,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:26:36,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:26:36,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:26:36,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:26:36,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:26:36,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:26:36,115 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:26:36,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:26:36,116 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:26:36,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:26:36,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:26:36,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:26:36,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:36,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:26:36,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:26:36,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:26:36,118 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:26:36,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:26:36,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:26:36,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:26:36,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:26:36,119 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2021-11-19 14:26:36,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:26:36,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:26:36,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:26:36,425 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:26:36,426 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:26:36,427 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-19 14:26:36,517 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data/7511bcb73/1294b82e496746dbbd241ad60002336a/FLAG2f9bb69ad [2021-11-19 14:26:37,429 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:26:37,430 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-19 14:26:37,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data/7511bcb73/1294b82e496746dbbd241ad60002336a/FLAG2f9bb69ad [2021-11-19 14:26:37,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data/7511bcb73/1294b82e496746dbbd241ad60002336a [2021-11-19 14:26:37,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:26:37,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:26:37,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:37,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:26:37,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:26:37,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:37" (1/1) ... [2021-11-19 14:26:37,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27683ae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:37, skipping insertion in model container [2021-11-19 14:26:37,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:37" (1/1) ... [2021-11-19 14:26:37,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:26:38,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:39,701 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 14:26:39,702 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 14:26:39,754 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 14:26:39,755 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 14:26:39,785 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 14:26:39,795 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 14:26:39,842 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 14:26:39,866 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 14:26:39,873 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 14:26:39,879 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 14:26:39,887 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 14:26:39,894 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 14:26:39,894 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 14:26:39,902 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 14:26:39,909 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 14:26:39,915 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 14:26:39,920 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 14:26:39,935 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 14:26:39,939 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 14:26:39,953 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 14:26:39,960 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 14:26:39,966 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 14:26:39,966 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 14:26:40,007 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 14:26:40,021 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 14:26:40,401 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 14:26:40,410 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 14:26:40,411 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 14:26:40,413 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 14:26:40,414 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 14:26:40,433 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 14:26:40,437 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 14:26:40,438 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 14:26:40,446 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 14:26:40,450 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 14:26:40,473 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 14:26:40,483 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 14:26:41,098 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-19 14:26:41,101 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-19 14:26:41,129 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:41,187 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 14:26:41,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16f8d947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:41, skipping insertion in model container [2021-11-19 14:26:41,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:41,189 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:26:41,191 INFO L158 Benchmark]: Toolchain (without parser) took 3303.72ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 55.0MB in the beginning and 71.2MB in the end (delta: -16.1MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2021-11-19 14:26:41,192 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:26:41,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3299.51ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 54.8MB in the beginning and 71.2MB in the end (delta: -16.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2021-11-19 14:26:41,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3299.51ms. Allocated memory was 102.8MB in the beginning and 125.8MB in the end (delta: 23.1MB). Free memory was 54.8MB in the beginning and 71.2MB in the end (delta: -16.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6699]: 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/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 b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:26:43,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:26:43,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:26:43,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:26:43,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:26:43,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:26:43,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:26:43,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:26:43,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:26:43,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:26:43,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:26:43,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:26:43,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:26:43,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:26:43,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:26:43,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:26:43,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:26:43,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:26:43,630 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:26:43,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:26:43,635 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:26:43,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:26:43,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:26:43,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:26:43,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:26:43,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:26:43,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:26:43,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:26:43,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:26:43,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:26:43,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:26:43,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:26:43,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:26:43,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:26:43,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:26:43,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:26:43,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:26:43,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:26:43,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:26:43,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:26:43,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:26:43,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:26:43,688 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:26:43,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:26:43,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:26:43,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:26:43,693 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:26:43,693 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:26:43,694 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:26:43,694 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:26:43,694 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:26:43,694 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:26:43,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:26:43,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:26:43,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:26:43,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:26:43,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:26:43,698 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:26:43,699 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:26:43,699 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:26:43,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:26:43,699 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:26:43,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:26:43,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:26:43,700 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:26:43,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:26:43,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:43,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:26:43,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:26:43,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:26:43,701 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:26:43,702 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:26:43,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:26:43,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:26:43,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:26:43,703 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2021-11-19 14:26:44,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:26:44,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:26:44,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:26:44,152 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:26:44,154 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:26:44,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-19 14:26:44,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data/9db2aa0f7/6a5231da62014ebbbd6ee90d078e2f73/FLAGdbb15d5fc [2021-11-19 14:26:45,324 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:26:45,325 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-19 14:26:45,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data/9db2aa0f7/6a5231da62014ebbbd6ee90d078e2f73/FLAGdbb15d5fc [2021-11-19 14:26:45,623 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/data/9db2aa0f7/6a5231da62014ebbbd6ee90d078e2f73 [2021-11-19 14:26:45,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:26:45,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:26:45,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:45,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:26:45,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:26:45,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:45,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152b32de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:45, skipping insertion in model container [2021-11-19 14:26:45,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:26:45" (1/1) ... [2021-11-19 14:26:45,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:26:45,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:49,006 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-19 14:26:49,009 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-19 14:26:49,021 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:49,081 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:26:49,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:26:49,542 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-19 14:26:49,543 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-19 14:26:49,548 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:49,622 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:26:49,971 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-19 14:26:49,972 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_d4ab4084-da78-41a1-9f6a-f24d234c01d0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-19 14:26:49,978 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:26:50,257 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:26:50,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50 WrapperNode [2021-11-19 14:26:50,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:26:50,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:50,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:26:50,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:26:50,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,639 INFO L137 Inliner]: procedures = 436, calls = 1839, calls flagged for inlining = 205, calls inlined = 179, statements flattened = 4097 [2021-11-19 14:26:50,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:26:50,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:26:50,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:26:50,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:26:50,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,824 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:26:50,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:26:50,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:26:50,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:26:50,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (1/1) ... [2021-11-19 14:26:50,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:26:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:26:50,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:26:50,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:26:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure build_crc [2021-11-19 14:26:50,959 INFO L138 BoogieDeclarations]: Found implementation of procedure build_crc [2021-11-19 14:26:50,959 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_set_multicast_list [2021-11-19 14:26:50,959 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_set_multicast_list [2021-11-19 14:26:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:26:50,960 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:26:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-11-19 14:26:50,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-11-19 14:26:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:26:50,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:26:50,960 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_lock_irqsave [2021-11-19 14:26:50,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_lock_irqsave [2021-11-19 14:26:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-19 14:26:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-19 14:26:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:26:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:26:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure free_orinocodev [2021-11-19 14:26:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure free_orinocodev [2021-11-19 14:26:50,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:26:50,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:26:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:26:50,962 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:26:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:26:50,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:26:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_8051_cpucs [2021-11-19 14:26:50,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_8051_cpucs [2021-11-19 14:26:50,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:26:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:26:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:26:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:26:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:26:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:26:50,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:26:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_unlock [2021-11-19 14:26:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_unlock [2021-11-19 14:26:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_open [2021-11-19 14:26:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_open [2021-11-19 14:26:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:26:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:26:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-19 14:26:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-19 14:26:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_unlock_irqrestore [2021-11-19 14:26:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_unlock_irqrestore [2021-11-19 14:26:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_disconnect [2021-11-19 14:26:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_disconnect [2021-11-19 14:26:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-19 14:26:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-19 14:26:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:26:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:26:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-19 14:26:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-19 14:26:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:26:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:26:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_init [2021-11-19 14:26:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_init [2021-11-19 14:26:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-19 14:26:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-19 14:26:50,969 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-19 14:26:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-19 14:26:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:26:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:26:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_hard_reset [2021-11-19 14:26:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_hard_reset [2021-11-19 14:26:50,970 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-19 14:26:50,970 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-19 14:26:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:26:50,971 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-19 14:26:50,971 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-19 14:26:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:26:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:26:50,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:26:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:26:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:26:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:26:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:26:50,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:26:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-19 14:26:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-19 14:26:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:26:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-19 14:26:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_request_context_put [2021-11-19 14:26:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_request_context_put [2021-11-19 14:26:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-19 14:26:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-19 14:26:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-19 14:26:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-19 14:26:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_submit_in_urb [2021-11-19 14:26:50,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_submit_in_urb [2021-11-19 14:26:50,975 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-19 14:26:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-19 14:26:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:26:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:26:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_lock_irq [2021-11-19 14:26:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_lock_irq [2021-11-19 14:26:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:26:50,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:26:50,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:26:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure ndev_priv [2021-11-19 14:26:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ndev_priv [2021-11-19 14:26:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-19 14:26:50,977 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-19 14:26:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:26:50,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:26:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:26:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:26:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:26:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:26:50,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:26:50,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:26:50,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-19 14:26:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-19 14:26:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_unlock_irq [2021-11-19 14:26:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_unlock_irq [2021-11-19 14:26:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:26:50,983 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:26:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:26:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-11-19 14:26:50,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-11-19 14:26:50,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:26:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-19 14:26:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-19 14:26:50,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_121 [2021-11-19 14:26:50,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_121 [2021-11-19 14:26:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:26:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:26:50,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:26:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:26:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:26:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_tx_timeout [2021-11-19 14:26:50,992 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_tx_timeout [2021-11-19 14:26:50,992 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_program_end [2021-11-19 14:26:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_program_end [2021-11-19 14:26:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-19 14:26:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-19 14:26:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:26:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:26:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-19 14:26:50,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-19 14:26:50,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_orinoco_driver_exit_10_2 [2021-11-19 14:26:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_orinoco_driver_exit_10_2 [2021-11-19 14:26:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_stop [2021-11-19 14:26:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_stop [2021-11-19 14:26:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_access_ltv [2021-11-19 14:26:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_access_ltv [2021-11-19 14:26:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:26:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:26:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_write_ltv [2021-11-19 14:26:50,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_write_ltv [2021-11-19 14:26:50,994 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_mod_timer [2021-11-19 14:26:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_mod_timer [2021-11-19 14:26:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-19 14:26:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-19 14:26:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-19 14:26:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-19 14:26:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:26:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:26:50,995 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:26:50,995 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:26:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_req_queue_run [2021-11-19 14:26:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_req_queue_run [2021-11-19 14:26:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:26:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:26:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_122 [2021-11-19 14:26:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_122 [2021-11-19 14:26:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_ctx_complete [2021-11-19 14:26:50,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_ctx_complete [2021-11-19 14:26:50,996 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_delete [2021-11-19 14:26:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_delete [2021-11-19 14:26:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:26:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:26:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_alloc_ctx [2021-11-19 14:26:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_alloc_ctx [2021-11-19 14:26:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:26:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:26:50,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:26:50,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:26:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 14:26:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 14:26:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_reply_inc [2021-11-19 14:26:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_reply_inc [2021-11-19 14:26:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_req_lock_of_ezusb_priv [2021-11-19 14:26:50,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_req_lock_of_ezusb_priv [2021-11-19 14:26:50,998 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_docmd_wait [2021-11-19 14:26:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_docmd_wait [2021-11-19 14:26:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:26:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:26:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2021-11-19 14:26:51,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2021-11-19 14:26:51,000 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:26:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:26:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_complete_all [2021-11-19 14:26:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_complete_all [2021-11-19 14:26:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-19 14:26:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-19 14:26:51,001 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-19 14:26:51,001 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-19 14:26:51,830 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:26:51,833 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:26:54,362 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:27:11,604 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-19 14:27:11,803 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:27:11,838 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:27:11,842 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:27:11,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:27:11 BoogieIcfgContainer [2021-11-19 14:27:11,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:27:11,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:27:11,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:27:11,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:27:11,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:26:45" (1/3) ... [2021-11-19 14:27:11,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab2e0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:27:11, skipping insertion in model container [2021-11-19 14:27:11,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:26:50" (2/3) ... [2021-11-19 14:27:11,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab2e0d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:27:11, skipping insertion in model container [2021-11-19 14:27:11,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:27:11" (3/3) ... [2021-11-19 14:27:11,859 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-19 14:27:11,865 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:27:11,865 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:27:11,950 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:27:11,956 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 14:27:11,956 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:27:12,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 1462 states, 1022 states have (on average 1.2974559686888454) internal successors, (1326), 1035 states have internal predecessors, (1326), 358 states have call successors, (358), 82 states have call predecessors, (358), 81 states have return successors, (351), 347 states have call predecessors, (351), 351 states have call successors, (351) [2021-11-19 14:27:12,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-19 14:27:12,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:12,049 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:12,050 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:12,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash -923728913, now seen corresponding path program 1 times [2021-11-19 14:27:12,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:12,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007561238] [2021-11-19 14:27:12,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:12,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:12,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:12,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:12,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:27:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:13,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1811 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:13,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:13,960 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-19 14:27:13,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:14,571 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-19 14:27:14,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:14,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007561238] [2021-11-19 14:27:14,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007561238] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:14,573 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:14,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:27:14,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832707001] [2021-11-19 14:27:14,576 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:14,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:27:14,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:14,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:27:14,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:27:14,616 INFO L87 Difference]: Start difference. First operand has 1462 states, 1022 states have (on average 1.2974559686888454) internal successors, (1326), 1035 states have internal predecessors, (1326), 358 states have call successors, (358), 82 states have call predecessors, (358), 81 states have return successors, (351), 347 states have call predecessors, (351), 351 states have call successors, (351) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-19 14:27:16,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:17,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:17,306 INFO L93 Difference]: Finished difference Result 4081 states and 5780 transitions. [2021-11-19 14:27:17,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:27:17,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2021-11-19 14:27:17,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:17,345 INFO L225 Difference]: With dead ends: 4081 [2021-11-19 14:27:17,345 INFO L226 Difference]: Without dead ends: 2575 [2021-11-19 14:27:17,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:27:17,366 INFO L933 BasicCegarLoop]: 2487 mSDtfsCounter, 1629 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 4433 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:17,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1629 Valid, 4433 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-19 14:27:17,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2021-11-19 14:27:17,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2571. [2021-11-19 14:27:17,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 1825 states have (on average 1.2783561643835617) internal successors, (2333), 1851 states have internal predecessors, (2333), 589 states have call successors, (589), 156 states have call predecessors, (589), 156 states have return successors, (589), 579 states have call predecessors, (589), 589 states have call successors, (589) [2021-11-19 14:27:17,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3511 transitions. [2021-11-19 14:27:17,652 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3511 transitions. Word has length 203 [2021-11-19 14:27:17,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:17,655 INFO L470 AbstractCegarLoop]: Abstraction has 2571 states and 3511 transitions. [2021-11-19 14:27:17,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-19 14:27:17,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3511 transitions. [2021-11-19 14:27:17,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-19 14:27:17,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:17,674 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:17,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:17,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:17,899 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:17,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:17,900 INFO L85 PathProgramCache]: Analyzing trace with hash -891261146, now seen corresponding path program 1 times [2021-11-19 14:27:17,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:17,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652035782] [2021-11-19 14:27:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:17,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:17,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:17,906 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:17,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:27:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:19,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1815 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:19,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-19 14:27:19,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-19 14:27:20,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:20,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652035782] [2021-11-19 14:27:20,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652035782] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:20,270 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:20,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:27:20,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025849215] [2021-11-19 14:27:20,270 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:20,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:27:20,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:20,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:27:20,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:20,273 INFO L87 Difference]: Start difference. First operand 2571 states and 3511 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-19 14:27:22,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:26,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:26,012 INFO L93 Difference]: Finished difference Result 8828 states and 11999 transitions. [2021-11-19 14:27:26,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:27:26,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 209 [2021-11-19 14:27:26,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:26,070 INFO L225 Difference]: With dead ends: 8828 [2021-11-19 14:27:26,070 INFO L226 Difference]: Without dead ends: 6292 [2021-11-19 14:27:26,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:26,086 INFO L933 BasicCegarLoop]: 2636 mSDtfsCounter, 3296 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3296 SdHoareTripleChecker+Valid, 5903 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:26,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3296 Valid, 5903 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 718 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2021-11-19 14:27:26,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6292 states. [2021-11-19 14:27:26,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6292 to 6280. [2021-11-19 14:27:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6280 states, 4474 states have (on average 1.2771569065713009) internal successors, (5714), 4548 states have internal predecessors, (5714), 1394 states have call successors, (1394), 411 states have call predecessors, (1394), 411 states have return successors, (1394), 1356 states have call predecessors, (1394), 1394 states have call successors, (1394) [2021-11-19 14:27:26,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 8502 transitions. [2021-11-19 14:27:26,448 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 8502 transitions. Word has length 209 [2021-11-19 14:27:26,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:26,449 INFO L470 AbstractCegarLoop]: Abstraction has 6280 states and 8502 transitions. [2021-11-19 14:27:26,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-19 14:27:26,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 8502 transitions. [2021-11-19 14:27:26,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-19 14:27:26,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:26,457 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 15, 15, 15, 15, 15, 15, 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] [2021-11-19 14:27:26,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 14:27:26,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:26,670 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:26,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:26,671 INFO L85 PathProgramCache]: Analyzing trace with hash 397187385, now seen corresponding path program 1 times [2021-11-19 14:27:26,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:26,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761469249] [2021-11-19 14:27:26,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:26,673 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:26,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:26,675 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:26,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:27:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:28,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 1841 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:28,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:28,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-19 14:27:28,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:29,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2021-11-19 14:27:29,229 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:29,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761469249] [2021-11-19 14:27:29,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1761469249] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:29,232 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:29,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:27:29,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990126323] [2021-11-19 14:27:29,233 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:29,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:27:29,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:29,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:27:29,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:29,239 INFO L87 Difference]: Start difference. First operand 6280 states and 8502 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 14:27:31,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:34,733 INFO L93 Difference]: Finished difference Result 21131 states and 28537 transitions. [2021-11-19 14:27:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:27:34,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 225 [2021-11-19 14:27:34,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:34,859 INFO L225 Difference]: With dead ends: 21131 [2021-11-19 14:27:34,859 INFO L226 Difference]: Without dead ends: 14886 [2021-11-19 14:27:34,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:34,901 INFO L933 BasicCegarLoop]: 2495 mSDtfsCounter, 3367 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:34,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3367 Valid, 5953 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 655 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-11-19 14:27:34,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14886 states. [2021-11-19 14:27:35,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14886 to 14882. [2021-11-19 14:27:35,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14882 states, 10613 states have (on average 1.277960991237162) internal successors, (13563), 10789 states have internal predecessors, (13563), 3248 states have call successors, (3248), 1020 states have call predecessors, (3248), 1020 states have return successors, (3248), 3162 states have call predecessors, (3248), 3248 states have call successors, (3248) [2021-11-19 14:27:35,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14882 states to 14882 states and 20059 transitions. [2021-11-19 14:27:35,903 INFO L78 Accepts]: Start accepts. Automaton has 14882 states and 20059 transitions. Word has length 225 [2021-11-19 14:27:35,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:35,905 INFO L470 AbstractCegarLoop]: Abstraction has 14882 states and 20059 transitions. [2021-11-19 14:27:35,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 14:27:35,906 INFO L276 IsEmpty]: Start isEmpty. Operand 14882 states and 20059 transitions. [2021-11-19 14:27:35,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-19 14:27:35,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:35,913 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 15, 15, 15, 15, 15, 15, 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] [2021-11-19 14:27:35,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:36,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:36,127 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:36,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:36,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2047496562, now seen corresponding path program 1 times [2021-11-19 14:27:36,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:36,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206171229] [2021-11-19 14:27:36,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:36,130 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:36,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:36,135 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:36,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:27:37,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:37,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:37,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-19 14:27:37,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2021-11-19 14:27:38,424 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:38,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206171229] [2021-11-19 14:27:38,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206171229] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:38,425 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:38,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:27:38,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307746845] [2021-11-19 14:27:38,425 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:38,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:27:38,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:38,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:27:38,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:38,427 INFO L87 Difference]: Start difference. First operand 14882 states and 20059 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 14:27:40,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:44,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:44,462 INFO L93 Difference]: Finished difference Result 52172 states and 70374 transitions. [2021-11-19 14:27:44,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:27:44,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 234 [2021-11-19 14:27:44,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:44,721 INFO L225 Difference]: With dead ends: 52172 [2021-11-19 14:27:44,722 INFO L226 Difference]: Without dead ends: 37325 [2021-11-19 14:27:44,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:27:44,805 INFO L933 BasicCegarLoop]: 3661 mSDtfsCounter, 3778 mSDsluCounter, 4115 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3778 SdHoareTripleChecker+Valid, 7776 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:44,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3778 Valid, 7776 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 674 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-19 14:27:44,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37325 states. [2021-11-19 14:27:46,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37325 to 37309. [2021-11-19 14:27:46,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37309 states, 26622 states have (on average 1.277965592367215) internal successors, (34022), 27037 states have internal predecessors, (34022), 8139 states have call successors, (8139), 2547 states have call predecessors, (8139), 2547 states have return successors, (8139), 7945 states have call predecessors, (8139), 8139 states have call successors, (8139) [2021-11-19 14:27:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37309 states to 37309 states and 50300 transitions. [2021-11-19 14:27:46,932 INFO L78 Accepts]: Start accepts. Automaton has 37309 states and 50300 transitions. Word has length 234 [2021-11-19 14:27:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:46,933 INFO L470 AbstractCegarLoop]: Abstraction has 37309 states and 50300 transitions. [2021-11-19 14:27:46,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-19 14:27:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 37309 states and 50300 transitions. [2021-11-19 14:27:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-19 14:27:46,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:46,943 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:46,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:47,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:47,156 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:47,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1444671938, now seen corresponding path program 1 times [2021-11-19 14:27:47,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:47,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562537528] [2021-11-19 14:27:47,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:47,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:47,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:47,161 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:47,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:27:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:48,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2022 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:27:48,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:49,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2021-11-19 14:27:49,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2021-11-19 14:27:49,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:49,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562537528] [2021-11-19 14:27:49,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562537528] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:49,794 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:27:49,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:27:49,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850867579] [2021-11-19 14:27:49,795 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:49,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:27:49,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:49,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:27:49,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:27:49,797 INFO L87 Difference]: Start difference. First operand 37309 states and 50300 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-19 14:27:51,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:54,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:54,016 INFO L93 Difference]: Finished difference Result 101635 states and 137006 transitions. [2021-11-19 14:27:54,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:27:54,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 289 [2021-11-19 14:27:54,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:54,556 INFO L225 Difference]: With dead ends: 101635 [2021-11-19 14:27:54,556 INFO L226 Difference]: Without dead ends: 64361 [2021-11-19 14:27:54,676 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:27:54,677 INFO L933 BasicCegarLoop]: 2269 mSDtfsCounter, 1647 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 4162 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:54,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1647 Valid, 4162 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:27:54,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64361 states. [2021-11-19 14:27:58,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64361 to 64323. [2021-11-19 14:27:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64323 states, 45712 states have (on average 1.2743699684984249) internal successors, (58254), 46446 states have internal predecessors, (58254), 14140 states have call successors, (14140), 4470 states have call predecessors, (14140), 4470 states have return successors, (14140), 13778 states have call predecessors, (14140), 14140 states have call successors, (14140) [2021-11-19 14:27:58,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64323 states to 64323 states and 86534 transitions. [2021-11-19 14:27:58,780 INFO L78 Accepts]: Start accepts. Automaton has 64323 states and 86534 transitions. Word has length 289 [2021-11-19 14:27:58,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:58,785 INFO L470 AbstractCegarLoop]: Abstraction has 64323 states and 86534 transitions. [2021-11-19 14:27:58,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-19 14:27:58,785 INFO L276 IsEmpty]: Start isEmpty. Operand 64323 states and 86534 transitions. [2021-11-19 14:27:58,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-19 14:27:58,797 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:58,798 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 15, 15, 15, 15, 15, 15, 5, 5, 5, 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] [2021-11-19 14:27:58,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:59,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:59,025 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:27:59,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:59,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1846892599, now seen corresponding path program 1 times [2021-11-19 14:27:59,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:59,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [230917697] [2021-11-19 14:27:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:59,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:59,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:59,029 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:59,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:28:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:00,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1999 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:00,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:01,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1253 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 1186 trivial. 0 not checked. [2021-11-19 14:28:01,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1253 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked. [2021-11-19 14:28:01,622 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:01,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [230917697] [2021-11-19 14:28:01,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [230917697] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:01,622 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:28:01,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:28:01,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094542024] [2021-11-19 14:28:01,623 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:01,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:28:01,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:01,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:28:01,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:01,625 INFO L87 Difference]: Start difference. First operand 64323 states and 86534 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-19 14:28:03,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:28:10,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:10,046 INFO L93 Difference]: Finished difference Result 186989 states and 251305 transitions. [2021-11-19 14:28:10,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:28:10,047 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 301 [2021-11-19 14:28:10,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:10,723 INFO L225 Difference]: With dead ends: 186989 [2021-11-19 14:28:10,723 INFO L226 Difference]: Without dead ends: 122763 [2021-11-19 14:28:11,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:28:11,065 INFO L933 BasicCegarLoop]: 3536 mSDtfsCounter, 3438 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3438 SdHoareTripleChecker+Valid, 6356 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:11,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3438 Valid, 6356 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 673 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-19 14:28:11,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122763 states. [2021-11-19 14:28:16,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122763 to 122727. [2021-11-19 14:28:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122727 states, 87106 states have (on average 1.272311895851032) internal successors, (110826), 88566 states have internal predecessors, (110826), 26884 states have call successors, (26884), 8736 states have call predecessors, (26884), 8736 states have return successors, (26884), 26144 states have call predecessors, (26884), 26884 states have call successors, (26884) [2021-11-19 14:28:17,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122727 states to 122727 states and 164594 transitions. [2021-11-19 14:28:17,783 INFO L78 Accepts]: Start accepts. Automaton has 122727 states and 164594 transitions. Word has length 301 [2021-11-19 14:28:17,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:17,784 INFO L470 AbstractCegarLoop]: Abstraction has 122727 states and 164594 transitions. [2021-11-19 14:28:17,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-19 14:28:17,784 INFO L276 IsEmpty]: Start isEmpty. Operand 122727 states and 164594 transitions. [2021-11-19 14:28:17,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-19 14:28:17,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:17,799 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 15, 15, 15, 15, 15, 15, 5, 5, 5, 4, 4, 4, 3, 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] [2021-11-19 14:28:17,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:18,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:18,024 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:28:18,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:18,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1157451087, now seen corresponding path program 1 times [2021-11-19 14:28:18,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:18,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543543766] [2021-11-19 14:28:18,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:18,026 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:18,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:18,027 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:18,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:28:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:19,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 2007 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:28:19,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 343 proven. 3 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2021-11-19 14:28:20,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:21,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2021-11-19 14:28:21,961 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:21,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543543766] [2021-11-19 14:28:21,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543543766] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:21,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [909740166] [2021-11-19 14:28:21,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:21,962 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:28:21,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:28:21,965 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:28:21,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4ab4084-da78-41a1-9f6a-f24d234c01d0/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-19 14:28:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:23,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 2007 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:28:23,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:24,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2021-11-19 14:28:24,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:24,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2021-11-19 14:28:24,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [909740166] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:24,669 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:28:24,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 23 [2021-11-19 14:28:24,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73159650] [2021-11-19 14:28:24,670 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:24,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:28:24,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:24,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:28:24,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:28:24,672 INFO L87 Difference]: Start difference. First operand 122727 states and 164594 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-19 14:28:26,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:28:33,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:33,395 INFO L93 Difference]: Finished difference Result 294757 states and 394660 transitions. [2021-11-19 14:28:33,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:28:33,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 310 [2021-11-19 14:28:33,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:34,362 INFO L225 Difference]: With dead ends: 294757 [2021-11-19 14:28:34,362 INFO L226 Difference]: Without dead ends: 172127 [2021-11-19 14:28:34,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1215 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:28:34,757 INFO L933 BasicCegarLoop]: 3507 mSDtfsCounter, 1559 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 5379 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:34,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 5379 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-19 14:28:34,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172127 states.