./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8 --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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:22:30,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:22:30,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:22:31,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:22:31,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:22:31,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:22:31,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:22:31,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:22:31,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:22:31,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:22:31,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:22:31,014 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:22:31,015 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:22:31,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:22:31,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:22:31,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:22:31,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:22:31,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:22:31,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:22:31,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:22:31,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:22:31,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:22:31,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:22:31,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:22:31,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:22:31,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:22:31,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:22:31,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:22:31,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:22:31,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:22:31,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:22:31,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:22:31,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:22:31,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:22:31,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:22:31,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:22:31,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:22:31,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:22:31,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:22:31,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:22:31,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:22:31,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:22:31,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:22:31,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:22:31,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:22:31,087 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:22:31,091 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:22:31,091 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:22:31,091 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:22:31,091 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:22:31,092 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:22:31,092 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:22:31,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:22:31,093 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:22:31,094 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:22:31,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:22:31,094 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:22:31,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:22:31,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:22:31,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:22:31,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:22:31,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:22:31,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:22:31,096 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:22:31,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:22:31,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:22:31,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:22:31,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:22:31,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:22:31,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:22:31,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:22:31,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:22:31,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:22:31,100 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:22:31,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:22:31,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:22:31,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:22:31,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:22:31,102 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2021-11-07 02:22:31,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:22:31,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:22:31,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:22:31,368 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:22:31,369 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:22:31,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-07 02:22:31,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data/90ac87189/c5ed103780984700bffc0e61a430b291/FLAG3356d5899 [2021-11-07 02:22:32,376 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:22:32,377 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-07 02:22:32,447 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data/90ac87189/c5ed103780984700bffc0e61a430b291/FLAG3356d5899 [2021-11-07 02:22:32,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data/90ac87189/c5ed103780984700bffc0e61a430b291 [2021-11-07 02:22:32,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:22:32,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:22:32,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:22:32,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:22:32,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:22:32,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:22:32" (1/1) ... [2021-11-07 02:22:32,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69384bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:32, skipping insertion in model container [2021-11-07 02:22:32,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:22:32" (1/1) ... [2021-11-07 02:22:32,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:22:32,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:22:34,996 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,173 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,196 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,203 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,204 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,222 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,222 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,258 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,267 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,267 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,332 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,356 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,530 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,537 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,544 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,620 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:35,632 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,121 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,121 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,127 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,128 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,128 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,129 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,130 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,130 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,141 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,363 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,368 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,376 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,384 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,395 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,431 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,433 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,443 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,444 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,505 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:36,518 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 02:22:37,280 WARN L228 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-07 02:22:37,283 WARN L228 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-07 02:22:37,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:22:37,330 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) [2021-11-07 02:22:37,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f6d79e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:37, skipping insertion in model container [2021-11-07 02:22:37,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:22:37,331 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:22:37,333 INFO L168 Benchmark]: Toolchain (without parser) took 4855.21 ms. Allocated memory was 102.8 MB in the beginning and 146.8 MB in the end (delta: 44.0 MB). Free memory was 71.4 MB in the beginning and 63.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:22:37,334 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory is still 56.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:22:37,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4850.93 ms. Allocated memory was 102.8 MB in the beginning and 146.8 MB in the end (delta: 44.0 MB). Free memory was 71.4 MB in the beginning and 63.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:22:37,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory is still 56.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4850.93 ms. Allocated memory was 102.8 MB in the beginning and 146.8 MB in the end (delta: 44.0 MB). Free memory was 71.4 MB in the beginning and 63.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7443]: 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8 --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 ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:22:39,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:22:39,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:22:39,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:22:39,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:22:39,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:22:39,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:22:39,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:22:39,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:22:39,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:22:39,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:22:39,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:22:39,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:22:39,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:22:39,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:22:39,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:22:39,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:22:39,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:22:39,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:22:39,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:22:39,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:22:39,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:22:39,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:22:39,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:22:39,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:22:39,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:22:39,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:22:39,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:22:39,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:22:39,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:22:39,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:22:39,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:22:39,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:22:39,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:22:39,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:22:39,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:22:39,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:22:39,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:22:39,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:22:39,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:22:39,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:22:39,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 02:22:39,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:22:39,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:22:39,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:22:39,975 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:22:39,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:22:39,976 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:22:39,976 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:22:39,976 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:22:39,976 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:22:39,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:22:39,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:22:39,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:22:39,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:22:39,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:22:39,980 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:22:39,980 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:22:39,981 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:22:39,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:22:39,981 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:22:39,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:22:39,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:22:39,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:22:39,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:22:39,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:22:39,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:22:39,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:22:39,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:22:39,983 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:22:39,984 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:22:39,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:22:39,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:22:39,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:22:39,985 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2021-11-07 02:22:40,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:22:40,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:22:40,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:22:40,448 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:22:40,450 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:22:40,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-07 02:22:40,541 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data/44fdd66dc/f9fd39fc946e49a893f5d99b21a3dc19/FLAG987ba329e [2021-11-07 02:22:41,732 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:22:41,733 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-07 02:22:41,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data/44fdd66dc/f9fd39fc946e49a893f5d99b21a3dc19/FLAG987ba329e [2021-11-07 02:22:41,959 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/data/44fdd66dc/f9fd39fc946e49a893f5d99b21a3dc19 [2021-11-07 02:22:41,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:22:41,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:22:41,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:22:41,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:22:41,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:22:41,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:22:41" (1/1) ... [2021-11-07 02:22:41,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf429f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:41, skipping insertion in model container [2021-11-07 02:22:41,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:22:41" (1/1) ... [2021-11-07 02:22:41,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:22:42,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:22:46,706 WARN L228 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-07 02:22:46,709 WARN L228 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-07 02:22:46,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:22:46,793 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:22:46,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:22:47,312 WARN L228 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-07 02:22:47,313 WARN L228 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-07 02:22:47,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:22:47,366 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:22:47,973 WARN L228 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-07 02:22:47,974 WARN L228 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_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-07 02:22:47,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:22:48,261 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:22:48,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48 WrapperNode [2021-11-07 02:22:48,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:22:48,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:22:48,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:22:48,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:22:48,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:48,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:51,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:22:51,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:22:51,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:22:51,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:22:52,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:52,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:52,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:52,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:54,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:55,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:55,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:55,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:22:55,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:22:55,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:22:55,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:22:55,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (1/1) ... [2021-11-07 02:22:55,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:22:55,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:22:55,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:22:55,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:22:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:22:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:22:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 02:22:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-07 02:22:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 02:22:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 02:22:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-07 02:22:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-07 02:22:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-07 02:22:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-07 02:22:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:22:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:22:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2021-11-07 02:22:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2021-11-07 02:22:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 02:22:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 02:22:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 02:22:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 02:22:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 02:22:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 02:22:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:22:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 02:22:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 02:22:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 02:22:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 02:22:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 02:22:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:22:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-07 02:22:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-07 02:22:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-07 02:22:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-07 02:22:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2021-11-07 02:22:55,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2021-11-07 02:29:05,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0bv32; [2021-11-07 02:29:05,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-07 02:29:05,679 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-07 02:29:05,680 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-07 02:29:05,680 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-07 02:29:05,680 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-07 02:29:05,682 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-07 02:29:05,683 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 02:29:05,684 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-07 02:29:06,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:29:06,041 INFO L299 CfgBuilder]: Removed 24635 assume(true) statements. [2021-11-07 02:29:06,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:29:06 BoogieIcfgContainer [2021-11-07 02:29:06,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:29:06,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:29:06,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:29:06,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:29:06,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:22:41" (1/3) ... [2021-11-07 02:29:06,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b91953d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:29:06, skipping insertion in model container [2021-11-07 02:29:06,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:22:48" (2/3) ... [2021-11-07 02:29:06,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b91953d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:29:06, skipping insertion in model container [2021-11-07 02:29:06,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:29:06" (3/3) ... [2021-11-07 02:29:06,070 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-07 02:29:06,075 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:29:06,075 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-07 02:29:06,184 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:29:06,189 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 [2021-11-07 02:29:06,189 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-07 02:29:06,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 18863 states, 18808 states have (on average 1.3090706082518078) internal successors, (24621), 18837 states have internal predecessors, (24621), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-07 02:29:06,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-07 02:29:06,675 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:29:06,676 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:29:06,676 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:29:06,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:29:06,689 INFO L85 PathProgramCache]: Analyzing trace with hash -900611428, now seen corresponding path program 1 times [2021-11-07 02:29:06,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:29:06,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1310536940] [2021-11-07 02:29:06,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:29:06,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:29:06,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:29:06,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:29:06,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:29:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:29:13,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:29:13,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:29:13,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:29:13,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:29:14,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:29:14,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:29:14,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1310536940] [2021-11-07 02:29:14,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1310536940] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:29:14,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:29:14,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:29:14,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725877480] [2021-11-07 02:29:14,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:29:14,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:29:14,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:29:14,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:29:14,087 INFO L87 Difference]: Start difference. First operand has 18863 states, 18808 states have (on average 1.3090706082518078) internal successors, (24621), 18837 states have internal predecessors, (24621), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:29:19,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:29:19,738 INFO L93 Difference]: Finished difference Result 55516 states and 72576 transitions. [2021-11-07 02:29:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:29:19,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-07 02:29:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:29:19,991 INFO L225 Difference]: With dead ends: 55516 [2021-11-07 02:29:19,992 INFO L226 Difference]: Without dead ends: 35069 [2021-11-07 02:29:20,041 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:29:20,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35069 states. [2021-11-07 02:29:21,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35069 to 35005. [2021-11-07 02:29:21,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35005 states, 34928 states have (on average 1.26563215758131) internal successors, (44206), 34957 states have internal predecessors, (44206), 41 states have call successors, (41), 6 states have call predecessors, (41), 6 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2021-11-07 02:29:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35005 states to 35005 states and 44288 transitions. [2021-11-07 02:29:22,024 INFO L78 Accepts]: Start accepts. Automaton has 35005 states and 44288 transitions. Word has length 78 [2021-11-07 02:29:22,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:29:22,026 INFO L470 AbstractCegarLoop]: Abstraction has 35005 states and 44288 transitions. [2021-11-07 02:29:22,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:29:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand 35005 states and 44288 transitions. [2021-11-07 02:29:22,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 02:29:22,039 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:29:22,041 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:29:22,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:29:22,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:29:22,267 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:29:22,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:29:22,268 INFO L85 PathProgramCache]: Analyzing trace with hash 735125227, now seen corresponding path program 1 times [2021-11-07 02:29:22,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:29:22,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503249374] [2021-11-07 02:29:22,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:29:22,273 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:29:22,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:29:22,274 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:29:22,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:29:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:29:29,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:29:29,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:29:29,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:29:29,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:29:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:29:30,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:29:30,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503249374] [2021-11-07 02:29:30,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503249374] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:29:30,240 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:29:30,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:29:30,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577831820] [2021-11-07 02:29:30,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:29:30,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:29:30,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:29:30,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:29:30,243 INFO L87 Difference]: Start difference. First operand 35005 states and 44288 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:29:35,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:29:35,849 INFO L93 Difference]: Finished difference Result 90126 states and 114335 transitions. [2021-11-07 02:29:35,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:29:35,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-07 02:29:35,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:29:36,065 INFO L225 Difference]: With dead ends: 90126 [2021-11-07 02:29:36,065 INFO L226 Difference]: Without dead ends: 55245 [2021-11-07 02:29:36,134 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:29:36,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55245 states. [2021-11-07 02:29:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55245 to 55145. [2021-11-07 02:29:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55145 states, 55032 states have (on average 1.2706607064980375) internal successors, (69927), 55061 states have internal predecessors, (69927), 73 states have call successors, (73), 10 states have call predecessors, (73), 10 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2021-11-07 02:29:38,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55145 states to 55145 states and 70073 transitions. [2021-11-07 02:29:38,723 INFO L78 Accepts]: Start accepts. Automaton has 55145 states and 70073 transitions. Word has length 105 [2021-11-07 02:29:38,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:29:38,727 INFO L470 AbstractCegarLoop]: Abstraction has 55145 states and 70073 transitions. [2021-11-07 02:29:38,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:29:38,728 INFO L276 IsEmpty]: Start isEmpty. Operand 55145 states and 70073 transitions. [2021-11-07 02:29:38,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-07 02:29:38,742 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:29:38,742 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 02:29:38,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:29:38,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:29:38,959 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:29:38,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:29:38,959 INFO L85 PathProgramCache]: Analyzing trace with hash -43414684, now seen corresponding path program 1 times [2021-11-07 02:29:38,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:29:38,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080714806] [2021-11-07 02:29:38,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:29:38,964 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:29:38,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:29:38,971 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:29:38,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:29:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:29:45,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 2179 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:29:45,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:29:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:29:46,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:29:46,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:29:46,963 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:29:46,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080714806] [2021-11-07 02:29:46,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080714806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:29:46,963 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:29:46,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:29:46,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137319311] [2021-11-07 02:29:46,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:29:46,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:29:46,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:29:46,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:29:46,966 INFO L87 Difference]: Start difference. First operand 55145 states and 70073 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:29:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:29:53,039 INFO L93 Difference]: Finished difference Result 165074 states and 209821 transitions. [2021-11-07 02:29:53,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:29:53,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-11-07 02:29:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:29:53,459 INFO L225 Difference]: With dead ends: 165074 [2021-11-07 02:29:53,459 INFO L226 Difference]: Without dead ends: 110053 [2021-11-07 02:29:53,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:29:53,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110053 states. [2021-11-07 02:29:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110053 to 109993. [2021-11-07 02:29:57,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109993 states, 109797 states have (on average 1.2710001184003206) internal successors, (139552), 109826 states have internal predecessors, (139552), 146 states have call successors, (146), 20 states have call predecessors, (146), 20 states have return successors, (146), 146 states have call predecessors, (146), 146 states have call successors, (146) [2021-11-07 02:29:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109993 states to 109993 states and 139844 transitions. [2021-11-07 02:29:58,411 INFO L78 Accepts]: Start accepts. Automaton has 109993 states and 139844 transitions. Word has length 123 [2021-11-07 02:29:58,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:29:58,414 INFO L470 AbstractCegarLoop]: Abstraction has 109993 states and 139844 transitions. [2021-11-07 02:29:58,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:29:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 109993 states and 139844 transitions. [2021-11-07 02:29:58,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 02:29:58,445 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:29:58,458 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:29:58,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:29:58,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:29:58,659 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-07 02:29:58,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:29:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1744312202, now seen corresponding path program 1 times [2021-11-07 02:29:58,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:29:58,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101395684] [2021-11-07 02:29:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:29:58,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:29:58,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:29:58,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:29:58,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98ec5598-1e63-44f0-bbbb-172ea4d3aae2/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:30:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:30:05,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 02:30:05,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:30:06,037 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:30:06,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:30:06,640 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-07 02:30:06,640 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:30:06,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101395684] [2021-11-07 02:30:06,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [101395684] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:30:06,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:30:06,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-07 02:30:06,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432451283] [2021-11-07 02:30:06,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 02:30:06,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:30:06,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 02:30:06,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-07 02:30:06,642 INFO L87 Difference]: Start difference. First operand 109993 states and 139844 transitions. Second operand has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:30:41,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:30:41,934 INFO L93 Difference]: Finished difference Result 432396 states and 549667 transitions. [2021-11-07 02:30:41,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 02:30:41,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.75) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-07 02:30:41,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:30:43,155 INFO L225 Difference]: With dead ends: 432396 [2021-11-07 02:30:43,155 INFO L226 Difference]: Without dead ends: 322705 [2021-11-07 02:30:43,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-11-07 02:30:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322705 states.