./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:23:18,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:23:18,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:23:18,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:23:18,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:23:18,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:23:18,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:23:18,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:23:18,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:23:18,611 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:23:18,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:23:18,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:23:18,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:23:18,617 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:23:18,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:23:18,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:23:18,627 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:23:18,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:23:18,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:23:18,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:23:18,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:23:18,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:23:18,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:23:18,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:23:18,656 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:23:18,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:23:18,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:23:18,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:23:18,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:23:18,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:23:18,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:23:18,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:23:18,664 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:23:18,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:23:18,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:23:18,668 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:23:18,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:23:18,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:23:18,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:23:18,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:23:18,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:23:18,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:23:18,715 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:23:18,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:23:18,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:23:18,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:23:18,718 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:23:18,718 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:23:18,718 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:23:18,719 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:23:18,725 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:23:18,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:23:18,726 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:23:18,727 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:23:18,727 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:23:18,727 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:23:18,727 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:23:18,727 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:23:18,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:23:18,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:23:18,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:23:18,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:23:18,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:23:18,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:23:18,730 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:23:18,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:23:18,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:23:18,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:23:18,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:23:18,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:23:18,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:23:18,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:23:18,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:23:18,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:23:18,732 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:23:18,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:23:18,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:23:18,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:23:18,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:23:18,733 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_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2021-11-12 22:23:19,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:23:19,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:23:19,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:23:19,076 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:23:19,077 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:23:19,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-12 22:23:19,146 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data/d5168b7ab/e9cd841452bc41ee93877a3c43297be7/FLAGf3799a617 [2021-11-12 22:23:20,236 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:23:20,237 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-12 22:23:20,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data/d5168b7ab/e9cd841452bc41ee93877a3c43297be7/FLAGf3799a617 [2021-11-12 22:23:20,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data/d5168b7ab/e9cd841452bc41ee93877a3c43297be7 [2021-11-12 22:23:20,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:23:20,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:23:20,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:23:20,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:23:20,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:23:20,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:23:20" (1/1) ... [2021-11-12 22:23:20,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544cfa25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:20, skipping insertion in model container [2021-11-12 22:23:20,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:23:20" (1/1) ... [2021-11-12 22:23:20,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:23:20,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:23:22,531 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,532 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,585 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,586 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,616 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,626 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,674 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,697 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,704 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,710 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,718 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,726 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,726 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,734 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,740 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,746 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,752 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,767 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,771 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,784 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,791 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,796 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,797 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,837 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:22,852 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,175 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,176 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,178 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,178 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,179 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,190 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,190 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,191 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,193 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,197 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,277 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,287 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-12 22:23:23,861 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_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-12 22:23:23,864 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_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-12 22:23:23,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:23:23,913 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) [2021-11-12 22:23:23,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21c527b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:23, skipping insertion in model container [2021-11-12 22:23:23,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:23:23,914 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:23:23,916 INFO L158 Benchmark]: Toolchain (without parser) took 3354.87ms. Allocated memory was 88.1MB in the beginning and 127.9MB in the end (delta: 39.8MB). Free memory was 54.8MB in the beginning and 66.5MB in the end (delta: -11.8MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2021-11-12 22:23:23,917 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:23:23,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3349.63ms. Allocated memory was 88.1MB in the beginning and 127.9MB in the end (delta: 39.8MB). Free memory was 54.6MB in the beginning and 66.5MB in the end (delta: -12.0MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2021-11-12 22:23:23,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3349.63ms. Allocated memory was 88.1MB in the beginning and 127.9MB in the end (delta: 39.8MB). Free memory was 54.6MB in the beginning and 66.5MB in the end (delta: -12.0MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6699]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:23:26,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:23:26,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:23:26,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:23:26,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:23:26,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:23:26,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:23:26,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:23:26,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:23:26,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:23:26,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:23:26,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:23:26,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:23:26,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:23:26,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:23:26,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:23:26,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:23:26,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:23:26,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:23:26,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:23:26,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:23:26,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:23:26,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:23:26,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:23:26,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:23:26,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:23:26,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:23:26,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:23:26,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:23:26,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:23:26,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:23:26,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:23:26,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:23:26,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:23:26,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:23:26,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:23:26,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:23:26,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:23:26,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:23:26,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:23:26,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:23:26,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:23:26,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:23:26,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:23:26,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:23:26,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:23:26,391 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:23:26,393 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:23:26,394 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:23:26,394 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:23:26,394 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:23:26,395 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:23:26,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:23:26,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:23:26,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:23:26,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:23:26,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:23:26,398 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:23:26,399 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:23:26,399 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:23:26,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:23:26,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:23:26,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:23:26,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:23:26,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:23:26,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:23:26,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:23:26,401 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:23:26,401 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:23:26,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:23:26,401 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:23:26,402 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:23:26,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:23:26,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:23:26,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:23:26,402 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_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2021-11-12 22:23:26,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:23:26,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:23:26,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:23:26,833 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:23:26,834 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:23:26,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-12 22:23:26,906 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data/e81bdb6a8/b98bd6139f304ce0a74af82bb09f0a2f/FLAG3b5e2b49b [2021-11-12 22:23:27,971 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:23:27,971 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-12 22:23:28,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data/e81bdb6a8/b98bd6139f304ce0a74af82bb09f0a2f/FLAG3b5e2b49b [2021-11-12 22:23:28,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/data/e81bdb6a8/b98bd6139f304ce0a74af82bb09f0a2f [2021-11-12 22:23:28,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:23:28,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:23:28,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:23:28,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:23:28,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:23:28,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:23:28" (1/1) ... [2021-11-12 22:23:28,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65fc4b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:28, skipping insertion in model container [2021-11-12 22:23:28,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:23:28" (1/1) ... [2021-11-12 22:23:28,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:23:28,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:23:31,644 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_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-12 22:23:31,647 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_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-12 22:23:31,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:23:31,704 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:23:31,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:23:32,118 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_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-12 22:23:32,124 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_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-12 22:23:32,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:23:32,166 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:23:32,591 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_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2021-11-12 22:23:32,592 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_f346ef79-345d-48ca-b728-493e5b98c0f1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2021-11-12 22:23:32,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:23:32,825 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:23:32,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32 WrapperNode [2021-11-12 22:23:32,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:23:32,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:23:32,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:23:32,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:23:32,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:32,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:23:33,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:23:33,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:23:33,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:23:33,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:23:33,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:23:33,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:23:33,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:23:33,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (1/1) ... [2021-11-12 22:23:33,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:23:33,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:23:33,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:23:33,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:23:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure build_crc [2021-11-12 22:23:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure build_crc [2021-11-12 22:23:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_set_multicast_list [2021-11-12 22:23:33,599 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_set_multicast_list [2021-11-12 22:23:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 22:23:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 22:23:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-11-12 22:23:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-11-12 22:23:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 22:23:33,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 22:23:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_lock_irqsave [2021-11-12 22:23:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_lock_irqsave [2021-11-12 22:23:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-12 22:23:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-12 22:23:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-12 22:23:33,601 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-12 22:23:33,601 INFO L130 BoogieDeclarations]: Found specification of procedure free_orinocodev [2021-11-12 22:23:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure free_orinocodev [2021-11-12 22:23:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 22:23:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 22:23:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-12 22:23:33,602 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-12 22:23:33,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 22:23:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 22:23:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_8051_cpucs [2021-11-12 22:23:33,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_8051_cpucs [2021-11-12 22:23:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:23:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-12 22:23:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:23:33,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:23:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:23:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-12 22:23:33,604 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-12 22:23:33,604 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_unlock [2021-11-12 22:23:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_unlock [2021-11-12 22:23:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_open [2021-11-12 22:23:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_open [2021-11-12 22:23:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-12 22:23:33,605 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-12 22:23:33,605 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-12 22:23:33,606 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-12 22:23:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_unlock_irqrestore [2021-11-12 22:23:33,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_unlock_irqrestore [2021-11-12 22:23:33,606 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_disconnect [2021-11-12 22:23:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_disconnect [2021-11-12 22:23:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-12 22:23:33,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-12 22:23:33,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 22:23:33,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 22:23:33,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 22:23:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 22:23:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 22:23:33,609 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 22:23:33,609 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_init [2021-11-12 22:23:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_init [2021-11-12 22:23:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-12 22:23:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-12 22:23:33,610 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-12 22:23:33,610 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-12 22:23:33,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 22:23:33,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 22:23:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_hard_reset [2021-11-12 22:23:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_hard_reset [2021-11-12 22:23:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-12 22:23:33,612 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-12 22:23:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:23:33,612 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-12 22:23:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-12 22:23:33,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 22:23:33,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 22:23:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:23:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-12 22:23:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 22:23:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 22:23:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 22:23:33,614 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-12 22:23:33,614 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-12 22:23:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-12 22:23:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-12 22:23:33,615 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_request_context_put [2021-11-12 22:23:33,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_request_context_put [2021-11-12 22:23:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-12 22:23:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-12 22:23:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-12 22:23:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-12 22:23:33,616 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_submit_in_urb [2021-11-12 22:23:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_submit_in_urb [2021-11-12 22:23:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-12 22:23:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-12 22:23:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 22:23:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 22:23:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_lock_irq [2021-11-12 22:23:33,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_lock_irq [2021-11-12 22:23:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 22:23:33,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:23:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:23:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure ndev_priv [2021-11-12 22:23:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ndev_priv [2021-11-12 22:23:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-12 22:23:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-12 22:23:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:23:33,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:23:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:23:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 22:23:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 22:23:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 22:23:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 22:23:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 22:23:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-12 22:23:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-12 22:23:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_unlock_irq [2021-11-12 22:23:33,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_unlock_irq [2021-11-12 22:23:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:23:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-12 22:23:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-12 22:23:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-11-12 22:23:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-11-12 22:23:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:23:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2021-11-12 22:23:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2021-11-12 22:23:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_121 [2021-11-12 22:23:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_121 [2021-11-12 22:23:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:23:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:23:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 22:23:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:23:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:23:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_tx_timeout [2021-11-12 22:23:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_tx_timeout [2021-11-12 22:23:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_program_end [2021-11-12 22:23:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_program_end [2021-11-12 22:23:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-12 22:23:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-12 22:23:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 22:23:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 22:23:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 22:23:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 22:23:33,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_orinoco_driver_exit_10_2 [2021-11-12 22:23:33,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_orinoco_driver_exit_10_2 [2021-11-12 22:23:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_stop [2021-11-12 22:23:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_stop [2021-11-12 22:23:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_access_ltv [2021-11-12 22:23:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_access_ltv [2021-11-12 22:23:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-12 22:23:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-12 22:23:33,637 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_write_ltv [2021-11-12 22:23:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_write_ltv [2021-11-12 22:23:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_mod_timer [2021-11-12 22:23:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_mod_timer [2021-11-12 22:23:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-12 22:23:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-12 22:23:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-12 22:23:33,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-12 22:23:33,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:23:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-12 22:23:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-12 22:23:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-12 22:23:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_req_queue_run [2021-11-12 22:23:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_req_queue_run [2021-11-12 22:23:33,639 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 22:23:33,639 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 22:23:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_122 [2021-11-12 22:23:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_122 [2021-11-12 22:23:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_ctx_complete [2021-11-12 22:23:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_ctx_complete [2021-11-12 22:23:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_delete [2021-11-12 22:23:33,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_delete [2021-11-12 22:23:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 22:23:33,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 22:23:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_alloc_ctx [2021-11-12 22:23:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_alloc_ctx [2021-11-12 22:23:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 22:23:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 22:23:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 22:23:33,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 22:23:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-12 22:23:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-12 22:23:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_reply_inc [2021-11-12 22:23:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_reply_inc [2021-11-12 22:23:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_req_lock_of_ezusb_priv [2021-11-12 22:23:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_req_lock_of_ezusb_priv [2021-11-12 22:23:33,642 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_docmd_wait [2021-11-12 22:23:33,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_docmd_wait [2021-11-12 22:23:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 22:23:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 22:23:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2021-11-12 22:23:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2021-11-12 22:23:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-12 22:23:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-12 22:23:33,643 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_complete_all [2021-11-12 22:23:33,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_complete_all [2021-11-12 22:23:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-12 22:23:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-12 22:23:33,644 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-12 22:23:33,644 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-12 22:23:37,415 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 22:24:04,611 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-12 22:24:04,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:24:04,865 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-12 22:24:04,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:04 BoogieIcfgContainer [2021-11-12 22:24:04,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:24:04,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:24:04,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:24:04,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:24:04,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:23:28" (1/3) ... [2021-11-12 22:24:04,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f077e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:24:04, skipping insertion in model container [2021-11-12 22:24:04,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:23:32" (2/3) ... [2021-11-12 22:24:04,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f077e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:24:04, skipping insertion in model container [2021-11-12 22:24:04,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:24:04" (3/3) ... [2021-11-12 22:24:04,880 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2021-11-12 22:24:04,886 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:24:04,886 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:24:04,955 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:24:04,962 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 [2021-11-12 22:24:04,962 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:24:05,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 1462 states, 1022 states have (on average 1.2974559686888454) internal successors, (1326), 1035 states have internal predecessors, (1326), 358 states have call successors, (358), 82 states have call predecessors, (358), 81 states have return successors, (351), 347 states have call predecessors, (351), 351 states have call successors, (351) [2021-11-12 22:24:05,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-12 22:24:05,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:05,063 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:05,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:05,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:05,070 INFO L85 PathProgramCache]: Analyzing trace with hash -923728913, now seen corresponding path program 1 times [2021-11-12 22:24:05,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:24:05,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205410564] [2021-11-12 22:24:05,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:05,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:24:05,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:24:05,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:24:05,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:24:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:09,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 2178 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:24:09,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:09,950 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-12 22:24:09,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-12 22:24:10,521 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:24:10,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205410564] [2021-11-12 22:24:10,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205410564] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:10,522 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:10,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:24:10,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548854034] [2021-11-12 22:24:10,524 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:10,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:24:10,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:24:10,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:24:10,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:24:10,581 INFO L87 Difference]: Start difference. First operand has 1462 states, 1022 states have (on average 1.2974559686888454) internal successors, (1326), 1035 states have internal predecessors, (1326), 358 states have call successors, (358), 82 states have call predecessors, (358), 81 states have return successors, (351), 347 states have call predecessors, (351), 351 states have call successors, (351) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-12 22:24:12,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:24:13,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:13,445 INFO L93 Difference]: Finished difference Result 4081 states and 5780 transitions. [2021-11-12 22:24:13,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:24:13,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2021-11-12 22:24:13,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:13,483 INFO L225 Difference]: With dead ends: 4081 [2021-11-12 22:24:13,484 INFO L226 Difference]: Without dead ends: 2575 [2021-11-12 22:24:13,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:24:13,504 INFO L933 BasicCegarLoop]: 2487 mSDtfsCounter, 1629 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2476.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 4433 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.56ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2572.34ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:13,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1629 Valid, 4433 Invalid, 73 Unknown, 0 Unchecked, 34.56ms Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2572.34ms Time] [2021-11-12 22:24:13,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2021-11-12 22:24:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2571. [2021-11-12 22:24:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 1825 states have (on average 1.2783561643835617) internal successors, (2333), 1851 states have internal predecessors, (2333), 589 states have call successors, (589), 156 states have call predecessors, (589), 156 states have return successors, (589), 579 states have call predecessors, (589), 589 states have call successors, (589) [2021-11-12 22:24:13,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3511 transitions. [2021-11-12 22:24:13,754 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3511 transitions. Word has length 203 [2021-11-12 22:24:13,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:13,756 INFO L470 AbstractCegarLoop]: Abstraction has 2571 states and 3511 transitions. [2021-11-12 22:24:13,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-12 22:24:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3511 transitions. [2021-11-12 22:24:13,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-12 22:24:13,763 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:13,763 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:13,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:24:13,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:24:13,978 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:13,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:13,979 INFO L85 PathProgramCache]: Analyzing trace with hash -891261146, now seen corresponding path program 1 times [2021-11-12 22:24:13,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:24:13,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868811595] [2021-11-12 22:24:13,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:13,985 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:24:13,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:24:13,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:24:13,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:24:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:17,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 2182 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:24:17,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-12 22:24:18,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-12 22:24:18,915 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:24:18,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868811595] [2021-11-12 22:24:18,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868811595] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:18,916 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:18,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:24:18,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310297232] [2021-11-12 22:24:18,917 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:18,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:24:18,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:24:18,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:24:18,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:24:18,920 INFO L87 Difference]: Start difference. First operand 2571 states and 3511 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-12 22:24:21,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:24:25,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:25,359 INFO L93 Difference]: Finished difference Result 8828 states and 11999 transitions. [2021-11-12 22:24:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:24:25,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 209 [2021-11-12 22:24:25,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:25,421 INFO L225 Difference]: With dead ends: 8828 [2021-11-12 22:24:25,422 INFO L226 Difference]: Without dead ends: 6292 [2021-11-12 22:24:25,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:24:25,444 INFO L933 BasicCegarLoop]: 2636 mSDtfsCounter, 3296 mSDsluCounter, 3267 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5582.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3296 SdHoareTripleChecker+Valid, 5903 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.18ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6003.98ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:25,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3296 Valid, 5903 Invalid, 753 Unknown, 0 Unchecked, 34.18ms Time], IncrementalHoareTripleChecker [34 Valid, 718 Invalid, 1 Unknown, 0 Unchecked, 6003.98ms Time] [2021-11-12 22:24:25,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6292 states. [2021-11-12 22:24:25,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6292 to 6280. [2021-11-12 22:24:25,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6280 states, 4474 states have (on average 1.2771569065713009) internal successors, (5714), 4548 states have internal predecessors, (5714), 1394 states have call successors, (1394), 411 states have call predecessors, (1394), 411 states have return successors, (1394), 1356 states have call predecessors, (1394), 1394 states have call successors, (1394) [2021-11-12 22:24:25,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 8502 transitions. [2021-11-12 22:24:25,809 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 8502 transitions. Word has length 209 [2021-11-12 22:24:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:25,811 INFO L470 AbstractCegarLoop]: Abstraction has 6280 states and 8502 transitions. [2021-11-12 22:24:25,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2021-11-12 22:24:25,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 8502 transitions. [2021-11-12 22:24:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-12 22:24:25,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:25,820 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 15, 15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:25,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:24:26,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:24:26,034 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:26,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:26,035 INFO L85 PathProgramCache]: Analyzing trace with hash 397187385, now seen corresponding path program 1 times [2021-11-12 22:24:26,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:24:26,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685945132] [2021-11-12 22:24:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:26,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:24:26,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:24:26,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:24:26,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:24:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:30,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:24:30,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:30,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-12 22:24:30,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1041 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2021-11-12 22:24:31,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:24:31,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685945132] [2021-11-12 22:24:31,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685945132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:31,203 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:31,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:24:31,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887117344] [2021-11-12 22:24:31,204 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:31,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:24:31,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:24:31,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:24:31,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:24:31,207 INFO L87 Difference]: Start difference. First operand 6280 states and 8502 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-12 22:24:33,482 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:24:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:37,685 INFO L93 Difference]: Finished difference Result 21131 states and 28537 transitions. [2021-11-12 22:24:37,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:24:37,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 225 [2021-11-12 22:24:37,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:37,819 INFO L225 Difference]: With dead ends: 21131 [2021-11-12 22:24:37,819 INFO L226 Difference]: Without dead ends: 14886 [2021-11-12 22:24:37,859 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:24:37,863 INFO L933 BasicCegarLoop]: 2495 mSDtfsCounter, 3367 mSDsluCounter, 3458 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5322.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3367 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.34ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5715.67ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:37,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3367 Valid, 5953 Invalid, 674 Unknown, 0 Unchecked, 34.34ms Time], IncrementalHoareTripleChecker [18 Valid, 655 Invalid, 1 Unknown, 0 Unchecked, 5715.67ms Time] [2021-11-12 22:24:37,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14886 states. [2021-11-12 22:24:38,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14886 to 14882. [2021-11-12 22:24:38,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14882 states, 10613 states have (on average 1.277960991237162) internal successors, (13563), 10789 states have internal predecessors, (13563), 3248 states have call successors, (3248), 1020 states have call predecessors, (3248), 1020 states have return successors, (3248), 3162 states have call predecessors, (3248), 3248 states have call successors, (3248) [2021-11-12 22:24:38,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14882 states to 14882 states and 20059 transitions. [2021-11-12 22:24:38,858 INFO L78 Accepts]: Start accepts. Automaton has 14882 states and 20059 transitions. Word has length 225 [2021-11-12 22:24:38,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:38,860 INFO L470 AbstractCegarLoop]: Abstraction has 14882 states and 20059 transitions. [2021-11-12 22:24:38,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-12 22:24:38,861 INFO L276 IsEmpty]: Start isEmpty. Operand 14882 states and 20059 transitions. [2021-11-12 22:24:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-12 22:24:38,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:38,868 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 15, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:38,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:24:39,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:24:39,084 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:39,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2047496562, now seen corresponding path program 1 times [2021-11-12 22:24:39,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:24:39,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217925960] [2021-11-12 22:24:39,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:39,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:24:39,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:24:39,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:24:39,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:24:42,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:42,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 2221 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:24:42,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:43,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-11-12 22:24:43,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:44,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1045 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2021-11-12 22:24:44,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:24:44,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217925960] [2021-11-12 22:24:44,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217925960] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:44,086 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:44,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:24:44,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898166432] [2021-11-12 22:24:44,086 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:44,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:24:44,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:24:44,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:24:44,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:24:44,088 INFO L87 Difference]: Start difference. First operand 14882 states and 20059 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-12 22:24:46,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:24:50,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:24:50,880 INFO L93 Difference]: Finished difference Result 52172 states and 70374 transitions. [2021-11-12 22:24:50,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:24:50,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 234 [2021-11-12 22:24:50,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:24:51,258 INFO L225 Difference]: With dead ends: 52172 [2021-11-12 22:24:51,259 INFO L226 Difference]: Without dead ends: 37325 [2021-11-12 22:24:51,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 464 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:24:51,336 INFO L933 BasicCegarLoop]: 3661 mSDtfsCounter, 3778 mSDsluCounter, 4115 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5072.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3778 SdHoareTripleChecker+Valid, 7776 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.59ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5464.98ms IncrementalHoareTripleChecker+Time [2021-11-12 22:24:51,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3778 Valid, 7776 Invalid, 684 Unknown, 0 Unchecked, 30.59ms Time], IncrementalHoareTripleChecker [9 Valid, 674 Invalid, 1 Unknown, 0 Unchecked, 5464.98ms Time] [2021-11-12 22:24:51,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37325 states. [2021-11-12 22:24:53,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37325 to 37309. [2021-11-12 22:24:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37309 states, 26622 states have (on average 1.277965592367215) internal successors, (34022), 27037 states have internal predecessors, (34022), 8139 states have call successors, (8139), 2547 states have call predecessors, (8139), 2547 states have return successors, (8139), 7945 states have call predecessors, (8139), 8139 states have call successors, (8139) [2021-11-12 22:24:53,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37309 states to 37309 states and 50300 transitions. [2021-11-12 22:24:53,397 INFO L78 Accepts]: Start accepts. Automaton has 37309 states and 50300 transitions. Word has length 234 [2021-11-12 22:24:53,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:24:53,398 INFO L470 AbstractCegarLoop]: Abstraction has 37309 states and 50300 transitions. [2021-11-12 22:24:53,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 4 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2021-11-12 22:24:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 37309 states and 50300 transitions. [2021-11-12 22:24:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-12 22:24:53,415 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:24:53,416 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:24:53,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:24:53,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:24:53,630 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:24:53,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:24:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1444671938, now seen corresponding path program 1 times [2021-11-12 22:24:53,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:24:53,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1593188610] [2021-11-12 22:24:53,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:24:53,634 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:24:53,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:24:53,635 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:24:53,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 22:24:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:24:57,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 2389 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:24:57,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:24:58,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2021-11-12 22:24:58,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:24:59,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1002 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2021-11-12 22:24:59,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:24:59,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1593188610] [2021-11-12 22:24:59,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1593188610] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:24:59,196 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:24:59,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-12 22:24:59,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591634874] [2021-11-12 22:24:59,197 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:24:59,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:24:59,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:24:59,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:24:59,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:24:59,199 INFO L87 Difference]: Start difference. First operand 37309 states and 50300 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-12 22:25:01,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:25:03,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:03,614 INFO L93 Difference]: Finished difference Result 101635 states and 137006 transitions. [2021-11-12 22:25:03,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:25:03,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 289 [2021-11-12 22:25:03,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:04,145 INFO L225 Difference]: With dead ends: 101635 [2021-11-12 22:25:04,145 INFO L226 Difference]: Without dead ends: 64361 [2021-11-12 22:25:04,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-12 22:25:04,263 INFO L933 BasicCegarLoop]: 2269 mSDtfsCounter, 1647 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2374.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 4162 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.47ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2447.73ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:04,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1647 Valid, 4162 Invalid, 55 Unknown, 0 Unchecked, 9.47ms Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2447.73ms Time] [2021-11-12 22:25:04,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64361 states. [2021-11-12 22:25:07,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64361 to 64323. [2021-11-12 22:25:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64323 states, 45712 states have (on average 1.2743699684984249) internal successors, (58254), 46446 states have internal predecessors, (58254), 14140 states have call successors, (14140), 4470 states have call predecessors, (14140), 4470 states have return successors, (14140), 13778 states have call predecessors, (14140), 14140 states have call successors, (14140) [2021-11-12 22:25:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64323 states to 64323 states and 86534 transitions. [2021-11-12 22:25:07,805 INFO L78 Accepts]: Start accepts. Automaton has 64323 states and 86534 transitions. Word has length 289 [2021-11-12 22:25:07,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:07,806 INFO L470 AbstractCegarLoop]: Abstraction has 64323 states and 86534 transitions. [2021-11-12 22:25:07,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 3 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-12 22:25:07,806 INFO L276 IsEmpty]: Start isEmpty. Operand 64323 states and 86534 transitions. [2021-11-12 22:25:07,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-12 22:25:07,822 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:07,823 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 15, 15, 15, 15, 15, 15, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:07,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 22:25:08,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:25:08,047 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:25:08,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:08,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1846892599, now seen corresponding path program 1 times [2021-11-12 22:25:08,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:25:08,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145034553] [2021-11-12 22:25:08,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:08,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:25:08,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:25:08,054 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:25:08,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:25:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:12,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 2366 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:25:12,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:25:12,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1253 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 1186 trivial. 0 not checked. [2021-11-12 22:25:12,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:25:13,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1253 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked. [2021-11-12 22:25:13,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:25:13,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145034553] [2021-11-12 22:25:13,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145034553] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:13,348 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:25:13,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-12 22:25:13,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867850448] [2021-11-12 22:25:13,349 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:13,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 22:25:13,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:25:13,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 22:25:13,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:25:13,351 INFO L87 Difference]: Start difference. First operand 64323 states and 86534 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-12 22:25:15,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:25:22,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:22,680 INFO L93 Difference]: Finished difference Result 186989 states and 251305 transitions. [2021-11-12 22:25:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 22:25:22,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 301 [2021-11-12 22:25:22,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:23,461 INFO L225 Difference]: With dead ends: 186989 [2021-11-12 22:25:23,461 INFO L226 Difference]: Without dead ends: 122763 [2021-11-12 22:25:23,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 22:25:23,697 INFO L933 BasicCegarLoop]: 3536 mSDtfsCounter, 3438 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4701.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3438 SdHoareTripleChecker+Valid, 6356 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.66ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5048.14ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:23,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3438 Valid, 6356 Invalid, 704 Unknown, 0 Unchecked, 20.66ms Time], IncrementalHoareTripleChecker [30 Valid, 673 Invalid, 1 Unknown, 0 Unchecked, 5048.14ms Time] [2021-11-12 22:25:23,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122763 states. [2021-11-12 22:25:29,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122763 to 122727. [2021-11-12 22:25:29,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122727 states, 87106 states have (on average 1.272311895851032) internal successors, (110826), 88566 states have internal predecessors, (110826), 26884 states have call successors, (26884), 8736 states have call predecessors, (26884), 8736 states have return successors, (26884), 26144 states have call predecessors, (26884), 26884 states have call successors, (26884) [2021-11-12 22:25:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122727 states to 122727 states and 164594 transitions. [2021-11-12 22:25:29,870 INFO L78 Accepts]: Start accepts. Automaton has 122727 states and 164594 transitions. Word has length 301 [2021-11-12 22:25:29,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:25:29,871 INFO L470 AbstractCegarLoop]: Abstraction has 122727 states and 164594 transitions. [2021-11-12 22:25:29,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 4 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-12 22:25:29,872 INFO L276 IsEmpty]: Start isEmpty. Operand 122727 states and 164594 transitions. [2021-11-12 22:25:29,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-12 22:25:29,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:25:29,882 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 15, 15, 15, 15, 15, 15, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:25:29,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:25:30,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:25:30,098 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:25:30,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:25:30,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1157451087, now seen corresponding path program 1 times [2021-11-12 22:25:30,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:25:30,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774101263] [2021-11-12 22:25:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:30,102 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:25:30,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:25:30,103 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:25:30,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:25:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:34,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 2374 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-12 22:25:34,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:25:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 343 proven. 3 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2021-11-12 22:25:35,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:25:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 48 proven. 12 refuted. 0 times theorem prover too weak. 1346 trivial. 0 not checked. [2021-11-12 22:25:37,310 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:25:37,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774101263] [2021-11-12 22:25:37,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774101263] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:25:37,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [319337958] [2021-11-12 22:25:37,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:25:37,311 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:25:37,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:25:37,320 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:25:37,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f346ef79-345d-48ca-b728-493e5b98c0f1/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-12 22:25:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:25:39,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 2374 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 22:25:39,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:25:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2021-11-12 22:25:39,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:25:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2021-11-12 22:25:40,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [319337958] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:25:40,493 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-12 22:25:40,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [17, 17] total 23 [2021-11-12 22:25:40,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663281608] [2021-11-12 22:25:40,494 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:25:40,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-12 22:25:40,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:25:40,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-12 22:25:40,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:25:40,497 INFO L87 Difference]: Start difference. First operand 122727 states and 164594 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-12 22:25:42,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 22:25:49,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:25:49,032 INFO L93 Difference]: Finished difference Result 294757 states and 394660 transitions. [2021-11-12 22:25:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 22:25:49,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 310 [2021-11-12 22:25:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:25:49,865 INFO L225 Difference]: With dead ends: 294757 [2021-11-12 22:25:49,866 INFO L226 Difference]: Without dead ends: 172127 [2021-11-12 22:25:50,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1215 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-12 22:25:50,562 INFO L933 BasicCegarLoop]: 3507 mSDtfsCounter, 1559 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2400.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 5379 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.60ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2472.78ms IncrementalHoareTripleChecker+Time [2021-11-12 22:25:50,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1559 Valid, 5379 Invalid, 71 Unknown, 0 Unchecked, 10.60ms Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2472.78ms Time] [2021-11-12 22:25:50,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172127 states.