./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 05:04:10,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:04:10,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:04:10,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:04:10,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:04:10,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:04:10,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:04:10,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:04:10,821 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:04:10,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:04:10,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:04:10,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:04:10,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:04:10,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:04:10,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:04:10,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:04:10,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:04:10,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:04:10,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:04:10,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:04:10,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:04:10,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:04:10,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:04:10,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:04:10,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:04:10,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:04:10,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:04:10,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:04:10,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:04:10,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:04:10,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:04:10,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:04:10,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:04:10,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:04:10,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:04:10,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:04:10,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:04:10,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:04:10,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:04:10,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:04:10,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:04:10,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:04:10,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:04:10,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:04:10,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:04:10,930 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:04:10,930 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:04:10,931 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:04:10,931 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:04:10,931 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:04:10,937 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:04:10,938 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:04:10,939 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:04:10,939 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:04:10,939 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:04:10,940 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:04:10,940 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:04:10,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:04:10,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:04:10,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:04:10,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:04:10,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:04:10,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:04:10,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:04:10,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:04:10,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:04:10,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:04:10,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:04:10,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:04:10,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:04:10,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:04:10,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:04:10,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:04:10,946 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:04:10,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:04:10,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:04:10,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:04:10,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:04:10,947 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2021-11-03 05:04:11,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:04:11,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:04:11,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:04:11,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:04:11,320 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:04:11,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-03 05:04:11,392 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data/395cd0aff/bede81ccc0e6492988ed30936eea2e80/FLAG04b83f53f [2021-11-03 05:04:12,464 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:04:12,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-03 05:04:12,537 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data/395cd0aff/bede81ccc0e6492988ed30936eea2e80/FLAG04b83f53f [2021-11-03 05:04:12,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data/395cd0aff/bede81ccc0e6492988ed30936eea2e80 [2021-11-03 05:04:12,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:04:12,772 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:04:12,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:04:12,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:04:12,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:04:12,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:04:12" (1/1) ... [2021-11-03 05:04:12,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed7935d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:12, skipping insertion in model container [2021-11-03 05:04:12,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:04:12" (1/1) ... [2021-11-03 05:04:12,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:04:13,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:04:15,005 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,166 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,191 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,199 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,200 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,218 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,229 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,281 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,294 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,295 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,383 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,414 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,598 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,605 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,611 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,688 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:15,707 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,177 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,187 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,192 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,201 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,202 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,203 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,204 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,205 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,211 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,429 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,434 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,441 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,445 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,458 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,494 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,496 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,506 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,507 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,567 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:16,580 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:04:17,267 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-03 05:04:17,270 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-03 05:04:17,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:04:17,320 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) [2021-11-03 05:04:17,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2133b44c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:17, skipping insertion in model container [2021-11-03 05:04:17,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:04:17,322 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:04:17,324 INFO L168 Benchmark]: Toolchain (without parser) took 4553.60 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 62.4 MB in the beginning and 55.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 63.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:04:17,325 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:04:17,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4548.65 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 62.1 MB in the beginning and 55.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 63.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:04:17,328 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 4548.65 ms. Allocated memory was 96.5 MB in the beginning and 142.6 MB in the end (delta: 46.1 MB). Free memory was 62.1 MB in the beginning and 55.9 MB in the end (delta: 6.2 MB). Peak memory consumption was 63.1 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH --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-9ad7fb2 [2021-11-03 05:04:19,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:04:19,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:04:19,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:04:19,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:04:19,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:04:19,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:04:19,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:04:19,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:04:19,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:04:19,605 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:04:19,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:04:19,607 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:04:19,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:04:19,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:04:19,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:04:19,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:04:19,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:04:19,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:04:19,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:04:19,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:04:19,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:04:19,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:04:19,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:04:19,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:04:19,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:04:19,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:04:19,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:04:19,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:04:19,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:04:19,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:04:19,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:04:19,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:04:19,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:04:19,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:04:19,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:04:19,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:04:19,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:04:19,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:04:19,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:04:19,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:04:19,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:04:19,672 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:04:19,673 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:04:19,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:04:19,674 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:04:19,674 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:04:19,674 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:04:19,675 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:04:19,675 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:04:19,675 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:04:19,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:04:19,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:04:19,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:04:19,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:04:19,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:04:19,677 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:04:19,678 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:04:19,678 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:04:19,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:04:19,678 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:04:19,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:04:19,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:04:19,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:04:19,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:04:19,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:04:19,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:04:19,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:04:19,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:04:19,681 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:04:19,681 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:04:19,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:04:19,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:04:19,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:04:19,682 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad99b1dbefac8c1e84a85aaa3f3639700dac2f8335de90a015e2768054e31e7e [2021-11-03 05:04:20,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:04:20,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:04:20,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:04:20,078 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:04:20,079 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:04:20,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-03 05:04:20,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data/4915fcf00/f230ef0bf78d488fb5b2d488e0163faf/FLAG7840a0032 [2021-11-03 05:04:21,311 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:04:21,312 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-03 05:04:21,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data/4915fcf00/f230ef0bf78d488fb5b2d488e0163faf/FLAG7840a0032 [2021-11-03 05:04:21,616 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/data/4915fcf00/f230ef0bf78d488fb5b2d488e0163faf [2021-11-03 05:04:21,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:04:21,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:04:21,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:04:21,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:04:21,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:04:21,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:04:21" (1/1) ... [2021-11-03 05:04:21,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41334af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:21, skipping insertion in model container [2021-11-03 05:04:21,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:04:21" (1/1) ... [2021-11-03 05:04:21,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:04:21,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:04:25,977 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-03 05:04:25,980 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-03 05:04:26,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:04:26,042 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:04:26,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:04:26,829 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-03 05:04:26,830 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-03 05:04:26,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:04:26,873 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:04:27,340 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445039,445052] [2021-11-03 05:04:27,341 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_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[445184,445197] [2021-11-03 05:04:27,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:04:27,579 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:04:27,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27 WrapperNode [2021-11-03 05:04:27,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:04:27,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:04:27,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:04:27,582 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:04:27,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:27,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:30,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:04:30,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:04:30,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:04:30,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:04:30,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:30,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:31,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:31,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:33,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:33,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:33,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:34,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:04:34,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:04:34,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:04:34,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:04:34,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (1/1) ... [2021-11-03 05:04:34,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:04:34,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:04:34,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:04:34,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:04:34,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:04:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:04:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 05:04:34,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 05:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 05:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 05:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 05:04:34,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 05:04:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:04:34,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:04:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2021-11-03 05:04:34,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2021-11-03 05:04:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:04:34,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 05:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 05:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 05:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 05:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:04:34,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:04:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 05:04:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 05:04:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 05:04:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:04:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 05:04:34,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 05:04:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 05:04:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 05:04:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 05:04:34,141 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2021-11-03 05:04:34,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2021-11-03 05:10:33,510 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0bv32; [2021-11-03 05:10:33,510 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 05:10:33,511 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 05:10:33,511 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 05:10:33,511 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-03 05:10:33,511 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 05:10:33,513 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0bv32; [2021-11-03 05:10:33,514 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 05:10:33,515 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 05:10:33,897 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:10:33,897 INFO L299 CfgBuilder]: Removed 24635 assume(true) statements. [2021-11-03 05:10:33,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:10:33 BoogieIcfgContainer [2021-11-03 05:10:33,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:10:33,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:10:33,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:10:33,921 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:10:33,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:04:21" (1/3) ... [2021-11-03 05:10:33,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f49c75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:10:33, skipping insertion in model container [2021-11-03 05:10:33,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:04:27" (2/3) ... [2021-11-03 05:10:33,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f49c75b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:10:33, skipping insertion in model container [2021-11-03 05:10:33,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:10:33" (3/3) ... [2021-11-03 05:10:33,925 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2021-11-03 05:10:33,931 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:10:33,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2021-11-03 05:10:34,059 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:10:34,073 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 [2021-11-03 05:10:34,073 INFO L340 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2021-11-03 05:10:34,380 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) [2021-11-03 05:10:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 05:10:34,408 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:10:34,409 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] [2021-11-03 05:10:34,410 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)] === [2021-11-03 05:10:34,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:10:34,419 INFO L85 PathProgramCache]: Analyzing trace with hash -900611428, now seen corresponding path program 1 times [2021-11-03 05:10:34,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:10:34,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [770268940] [2021-11-03 05:10:34,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:34,445 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:10:34,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:10:34,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:10:34,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:10:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:40,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 2001 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:10:40,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:41,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:41,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:42,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:42,028 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:10:42,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [770268940] [2021-11-03 05:10:42,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [770268940] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:10:42,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:10:42,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:10:42,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949466265] [2021-11-03 05:10:42,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:10:42,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:10:42,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:10:42,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:10:42,089 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) [2021-11-03 05:10:47,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:10:47,335 INFO L93 Difference]: Finished difference Result 55516 states and 72576 transitions. [2021-11-03 05:10:47,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:10:47,337 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 [2021-11-03 05:10:47,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:10:47,590 INFO L225 Difference]: With dead ends: 55516 [2021-11-03 05:10:47,590 INFO L226 Difference]: Without dead ends: 35069 [2021-11-03 05:10:47,655 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 [2021-11-03 05:10:47,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35069 states. [2021-11-03 05:10:49,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35069 to 35005. [2021-11-03 05:10:49,214 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) [2021-11-03 05:10:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35005 states to 35005 states and 44288 transitions. [2021-11-03 05:10:49,363 INFO L78 Accepts]: Start accepts. Automaton has 35005 states and 44288 transitions. Word has length 78 [2021-11-03 05:10:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:10:49,364 INFO L470 AbstractCegarLoop]: Abstraction has 35005 states and 44288 transitions. [2021-11-03 05:10:49,365 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) [2021-11-03 05:10:49,365 INFO L276 IsEmpty]: Start isEmpty. Operand 35005 states and 44288 transitions. [2021-11-03 05:10:49,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-03 05:10:49,373 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:10:49,373 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] [2021-11-03 05:10:49,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:10:49,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:10:49,599 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)] === [2021-11-03 05:10:49,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:10:49,600 INFO L85 PathProgramCache]: Analyzing trace with hash 735125227, now seen corresponding path program 1 times [2021-11-03 05:10:49,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:10:49,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968313429] [2021-11-03 05:10:49,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:10:49,617 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:10:49,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:10:49,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:10:49,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:10:56,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:10:56,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 2251 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:10:56,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:10:56,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:56,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:10:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:10:57,475 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:10:57,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968313429] [2021-11-03 05:10:57,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968313429] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:10:57,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:10:57,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:10:57,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506543390] [2021-11-03 05:10:57,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:10:57,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:10:57,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:10:57,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:10:57,479 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) [2021-11-03 05:11:03,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:11:03,637 INFO L93 Difference]: Finished difference Result 90126 states and 114335 transitions. [2021-11-03 05:11:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:11:03,638 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 [2021-11-03 05:11:03,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:11:03,832 INFO L225 Difference]: With dead ends: 90126 [2021-11-03 05:11:03,833 INFO L226 Difference]: Without dead ends: 55245 [2021-11-03 05:11:03,907 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 [2021-11-03 05:11:04,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55245 states. [2021-11-03 05:11:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55245 to 55145. [2021-11-03 05:11:06,636 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) [2021-11-03 05:11:06,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55145 states to 55145 states and 70073 transitions. [2021-11-03 05:11:06,816 INFO L78 Accepts]: Start accepts. Automaton has 55145 states and 70073 transitions. Word has length 105 [2021-11-03 05:11:06,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:11:06,822 INFO L470 AbstractCegarLoop]: Abstraction has 55145 states and 70073 transitions. [2021-11-03 05:11:06,825 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) [2021-11-03 05:11:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 55145 states and 70073 transitions. [2021-11-03 05:11:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-03 05:11:06,839 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:11:06,839 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] [2021-11-03 05:11:06,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:11:07,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:11:07,067 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)] === [2021-11-03 05:11:07,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:11:07,067 INFO L85 PathProgramCache]: Analyzing trace with hash -43414684, now seen corresponding path program 1 times [2021-11-03 05:11:07,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:11:07,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [822140330] [2021-11-03 05:11:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:11:07,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:11:07,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:11:07,079 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:11:07,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:11:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:11:13,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 2179 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:11:13,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:11:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:14,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:11:14,827 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:11:14,827 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:11:14,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [822140330] [2021-11-03 05:11:14,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [822140330] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:11:14,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:11:14,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:11:14,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130790773] [2021-11-03 05:11:14,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:11:14,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:11:14,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:11:14,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:11:14,830 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) [2021-11-03 05:11:20,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:11:20,919 INFO L93 Difference]: Finished difference Result 165074 states and 209821 transitions. [2021-11-03 05:11:20,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:11:20,920 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 [2021-11-03 05:11:20,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:11:21,367 INFO L225 Difference]: With dead ends: 165074 [2021-11-03 05:11:21,367 INFO L226 Difference]: Without dead ends: 110053 [2021-11-03 05:11:21,467 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 [2021-11-03 05:11:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110053 states. [2021-11-03 05:11:26,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110053 to 109993. [2021-11-03 05:11:26,786 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) [2021-11-03 05:11:27,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109993 states to 109993 states and 139844 transitions. [2021-11-03 05:11:27,177 INFO L78 Accepts]: Start accepts. Automaton has 109993 states and 139844 transitions. Word has length 123 [2021-11-03 05:11:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:11:27,179 INFO L470 AbstractCegarLoop]: Abstraction has 109993 states and 139844 transitions. [2021-11-03 05:11:27,180 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) [2021-11-03 05:11:27,181 INFO L276 IsEmpty]: Start isEmpty. Operand 109993 states and 139844 transitions. [2021-11-03 05:11:27,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-03 05:11:27,194 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:11:27,195 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] [2021-11-03 05:11:27,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:11:27,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:11:27,418 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)] === [2021-11-03 05:11:27,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:11:27,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1744312202, now seen corresponding path program 1 times [2021-11-03 05:11:27,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:11:27,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1115776966] [2021-11-03 05:11:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:11:27,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:11:27,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:11:27,431 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:11:27,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0894d2ed-ec5b-4b2b-a61e-ca7fffa5d45d/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:11:33,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:11:33,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 2124 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:11:33,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:11:34,606 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:11:34,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:11:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:11:35,483 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:11:35,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1115776966] [2021-11-03 05:11:35,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1115776966] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:11:35,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:11:35,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2021-11-03 05:11:35,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448918055] [2021-11-03 05:11:35,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:11:35,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:11:35,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:11:35,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-03 05:11:35,487 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) [2021-11-03 05:12:10,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:12:10,266 INFO L93 Difference]: Finished difference Result 432396 states and 549667 transitions. [2021-11-03 05:12:10,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:12:10,270 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 [2021-11-03 05:12:10,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:12:11,850 INFO L225 Difference]: With dead ends: 432396 [2021-11-03 05:12:11,851 INFO L226 Difference]: Without dead ends: 322705 [2021-11-03 05:12:12,085 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 [2021-11-03 05:12:12,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322705 states.