./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-usb-pegasus.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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/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 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:42:04,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:42:04,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:42:04,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:42:04,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:42:04,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:42:04,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:42:04,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:42:04,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:42:04,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:42:04,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:42:04,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:42:04,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:42:04,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:42:04,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:42:04,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:42:04,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:42:04,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:42:04,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:42:04,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:42:04,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:42:04,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:42:04,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:42:04,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:42:04,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:42:04,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:42:04,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:42:04,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:42:04,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:42:04,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:42:04,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:42:04,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:42:04,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:42:04,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:42:04,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:42:04,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:42:04,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:42:04,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:42:04,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:42:04,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:42:04,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:42:04,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:42:04,295 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:42:04,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:42:04,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:42:04,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:42:04,297 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:42:04,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:42:04,297 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:42:04,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:42:04,298 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:42:04,298 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:42:04,298 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:42:04,299 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:42:04,299 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:42:04,299 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:42:04,299 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:42:04,300 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:42:04,300 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:42:04,301 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:42:04,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:42:04,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:42:04,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:42:04,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:42:04,302 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:42:04,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:42:04,302 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:42:04,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:42:04,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:42:04,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:42:04,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:04,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:42:04,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:42:04,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:42:04,304 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:42:04,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:42:04,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:42:04,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:42:04,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:42:04,305 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed [2021-11-13 01:42:04,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:42:04,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:42:04,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:42:04,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:42:04,635 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:42:04,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-13 01:42:04,715 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data/53c54de78/9b3b72e0c5d344afbf84024d8b74521e/FLAG176cb753c [2021-11-13 01:42:05,710 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:05,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-13 01:42:05,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data/53c54de78/9b3b72e0c5d344afbf84024d8b74521e/FLAG176cb753c [2021-11-13 01:42:06,096 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data/53c54de78/9b3b72e0c5d344afbf84024d8b74521e [2021-11-13 01:42:06,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:06,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:06,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:06,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:06,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:06,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:06" (1/1) ... [2021-11-13 01:42:06,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1755c5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:06, skipping insertion in model container [2021-11-13 01:42:06,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:06" (1/1) ... [2021-11-13 01:42:06,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:06,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:07,830 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,865 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,898 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,904 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,918 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,940 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,950 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,961 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,981 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:07,991 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,002 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,009 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,025 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,056 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,082 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,111 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,118 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,126 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,133 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,148 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,154 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,160 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,166 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,172 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,179 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,187 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,195 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,255 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,275 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,282 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,288 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,559 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,588 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,588 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,588 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,589 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,591 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,591 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,593 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,593 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,594 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,617 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:08,626 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:42:09,110 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-11-13 01:42:09,113 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-11-13 01:42:09,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:09,262 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) [2021-11-13 01:42:09,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@71a70105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:09, skipping insertion in model container [2021-11-13 01:42:09,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:09,263 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:42:09,265 INFO L158 Benchmark]: Toolchain (without parser) took 3164.49ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 58.3MB in the beginning and 108.1MB in the end (delta: -49.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-13 01:42:09,267 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 68.5MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:42:09,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3159.31ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 58.1MB in the beginning and 108.1MB in the end (delta: -50.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2021-11-13 01:42:09,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 68.5MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3159.31ms. Allocated memory was 94.4MB in the beginning and 157.3MB in the end (delta: 62.9MB). Free memory was 58.1MB in the beginning and 108.1MB in the end (delta: -50.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5711]: 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/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 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:42:11,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:42:11,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:42:11,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:42:11,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:42:11,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:42:11,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:42:11,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:42:11,507 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:42:11,515 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:42:11,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:42:11,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:42:11,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:42:11,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:42:11,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:42:11,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:42:11,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:42:11,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:42:11,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:42:11,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:42:11,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:42:11,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:42:11,547 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:42:11,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:42:11,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:42:11,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:42:11,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:42:11,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:42:11,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:42:11,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:42:11,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:42:11,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:42:11,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:42:11,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:42:11,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:42:11,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:42:11,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:42:11,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:42:11,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:42:11,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:42:11,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:42:11,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:42:11,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:42:11,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:42:11,628 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:42:11,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:42:11,629 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:42:11,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:42:11,629 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:42:11,630 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:42:11,630 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:42:11,630 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:42:11,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:42:11,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:42:11,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:42:11,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:42:11,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:42:11,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:42:11,634 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:42:11,634 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:42:11,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:42:11,635 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:42:11,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:42:11,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:42:11,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:42:11,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:42:11,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:11,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:42:11,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:42:11,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:42:11,637 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:42:11,637 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:42:11,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:42:11,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:42:11,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:42:11,638 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed [2021-11-13 01:42:12,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:42:12,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:42:12,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:42:12,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:42:12,087 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:42:12,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-13 01:42:12,167 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data/c5f6b0b9e/f53a80d1bdfc424a92094f5a32053ec8/FLAG2711483d5 [2021-11-13 01:42:13,179 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:42:13,181 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-13 01:42:13,231 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data/c5f6b0b9e/f53a80d1bdfc424a92094f5a32053ec8/FLAG2711483d5 [2021-11-13 01:42:13,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/data/c5f6b0b9e/f53a80d1bdfc424a92094f5a32053ec8 [2021-11-13 01:42:13,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:42:13,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:42:13,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:13,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:42:13,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:42:13,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:13" (1/1) ... [2021-11-13 01:42:13,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ccd6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:13, skipping insertion in model container [2021-11-13 01:42:13,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:42:13" (1/1) ... [2021-11-13 01:42:13,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:42:13,767 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:16,501 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-11-13 01:42:16,504 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-11-13 01:42:16,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:16,671 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:42:16,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:42:17,222 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-11-13 01:42:17,223 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-11-13 01:42:17,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:17,314 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:42:17,724 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-11-13 01:42:17,724 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_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-11-13 01:42:17,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:42:17,969 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:42:17,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17 WrapperNode [2021-11-13 01:42:17,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:42:17,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:17,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:42:17,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:42:17,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:42:18,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:42:18,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:42:18,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:42:18,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:42:18,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:42:18,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:42:18,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:42:18,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (1/1) ... [2021-11-13 01:42:18,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:42:18,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:42:18,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:42:18,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:42:18,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 01:42:18,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 01:42:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-13 01:42:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-13 01:42:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 01:42:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 01:42:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-13 01:42:18,978 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-13 01:42:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2021-11-13 01:42:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2021-11-13 01:42:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2021-11-13 01:42:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2021-11-13 01:42:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 01:42:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 01:42:18,979 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 01:42:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 01:42:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 01:42:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 01:42:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 01:42:18,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 01:42:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:42:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-13 01:42:18,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:42:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:42:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:42:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-13 01:42:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-13 01:42:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2021-11-13 01:42:18,981 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2021-11-13 01:42:18,981 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 01:42:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 01:42:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2021-11-13 01:42:18,982 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2021-11-13 01:42:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-13 01:42:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-13 01:42:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2021-11-13 01:42:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2021-11-13 01:42:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 01:42:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 01:42:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-13 01:42:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-13 01:42:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-13 01:42:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-13 01:42:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2021-11-13 01:42:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2021-11-13 01:42:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 01:42:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 01:42:18,985 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-13 01:42:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-13 01:42:18,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 01:42:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 01:42:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2021-11-13 01:42:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2021-11-13 01:42:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2021-11-13 01:42:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2021-11-13 01:42:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:42:18,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 01:42:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 01:42:18,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 01:42:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 01:42:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:42:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 01:42:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 01:42:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 01:42:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-13 01:42:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-13 01:42:18,989 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-13 01:42:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-13 01:42:18,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-13 01:42:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-13 01:42:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-13 01:42:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-13 01:42:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-13 01:42:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-13 01:42:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 01:42:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 01:42:18,991 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-13 01:42:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-13 01:42:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 01:42:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:42:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:42:18,992 INFO L130 BoogieDeclarations]: Found specification of procedure read_bulk_callback [2021-11-13 01:42:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure read_bulk_callback [2021-11-13 01:42:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:42:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-13 01:42:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-13 01:42:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:42:18,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:42:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 01:42:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 01:42:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 01:42:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 01:42:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 01:42:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2021-11-13 01:42:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2021-11-13 01:42:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-13 01:42:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-13 01:42:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-13 01:42:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2021-11-13 01:42:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 01:42:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 01:42:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_open [2021-11-13 01:42:18,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_open [2021-11-13 01:42:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 01:42:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 01:42:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 01:42:18,997 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 01:42:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:42:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2021-11-13 01:42:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2021-11-13 01:42:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 01:42:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 01:42:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:42:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_nway_reset [2021-11-13 01:42:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_nway_reset [2021-11-13 01:42:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_resume [2021-11-13 01:42:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_resume [2021-11-13 01:42:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:42:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:42:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 01:42:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:42:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:42:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2021-11-13 01:42:19,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2021-11-13 01:42:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 01:42:19,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 01:42:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-13 01:42:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-13 01:42:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2021-11-13 01:42:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2021-11-13 01:42:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 01:42:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 01:42:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 01:42:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 01:42:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 01:42:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 01:42:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure intr_callback [2021-11-13 01:42:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_callback [2021-11-13 01:42:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2021-11-13 01:42:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2021-11-13 01:42:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-13 01:42:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-13 01:42:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 01:42:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-13 01:42:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-13 01:42:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-13 01:42:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2021-11-13 01:42:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2021-11-13 01:42:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-13 01:42:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-13 01:42:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 01:42:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 01:42:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 01:42:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 01:42:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 01:42:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 01:42:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-13 01:42:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-13 01:42:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2021-11-13 01:42:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2021-11-13 01:42:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 01:42:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 01:42:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_close [2021-11-13 01:42:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_close [2021-11-13 01:42:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2021-11-13 01:42:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2021-11-13 01:42:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-13 01:42:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2021-11-13 01:42:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2021-11-13 01:42:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2021-11-13 01:42:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2021-11-13 01:42:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 01:42:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 01:42:26,404 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 01:43:21,925 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 01:43:21,979 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:43:21,979 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 01:43:21,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:43:21 BoogieIcfgContainer [2021-11-13 01:43:21,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:43:21,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:43:21,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:43:21,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:43:21,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:42:13" (1/3) ... [2021-11-13 01:43:21,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3818df47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:43:21, skipping insertion in model container [2021-11-13 01:43:21,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:42:17" (2/3) ... [2021-11-13 01:43:21,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3818df47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:43:21, skipping insertion in model container [2021-11-13 01:43:21,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:43:21" (3/3) ... [2021-11-13 01:43:21,992 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-13 01:43:21,998 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:43:21,998 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 01:43:22,059 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:43:22,066 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 [2021-11-13 01:43:22,066 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 01:43:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 1406 states, 1013 states have (on average 1.297137216189536) internal successors, (1314), 1021 states have internal predecessors, (1314), 322 states have call successors, (322), 71 states have call predecessors, (322), 70 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) [2021-11-13 01:43:22,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-13 01:43:22,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:22,154 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:22,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:43:22,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1905336561, now seen corresponding path program 1 times [2021-11-13 01:43:22,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:22,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [949361515] [2021-11-13 01:43:22,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:22,203 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:22,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:22,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:22,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:43:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:33,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 4586 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:43:33,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-13 01:43:34,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-13 01:43:34,664 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:34,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [949361515] [2021-11-13 01:43:34,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [949361515] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:34,671 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:34,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:43:34,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92638674] [2021-11-13 01:43:34,676 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:34,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:43:34,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:34,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:43:34,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:34,734 INFO L87 Difference]: Start difference. First operand has 1406 states, 1013 states have (on average 1.297137216189536) internal successors, (1314), 1021 states have internal predecessors, (1314), 322 states have call successors, (322), 71 states have call predecessors, (322), 70 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-13 01:43:37,666 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:41,653 INFO L93 Difference]: Finished difference Result 5441 states and 7625 transitions. [2021-11-13 01:43:41,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:43:41,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 167 [2021-11-13 01:43:41,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:41,723 INFO L225 Difference]: With dead ends: 5441 [2021-11-13 01:43:41,724 INFO L226 Difference]: Without dead ends: 3940 [2021-11-13 01:43:41,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:43:41,755 INFO L933 BasicCegarLoop]: 2572 mSDtfsCounter, 3719 mSDsluCounter, 4881 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5986.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3719 SdHoareTripleChecker+Valid, 7453 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 112.30ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6453.10ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:41,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3719 Valid, 7453 Invalid, 643 Unknown, 0 Unchecked, 112.30ms Time], IncrementalHoareTripleChecker [8 Valid, 634 Invalid, 1 Unknown, 0 Unchecked, 6453.10ms Time] [2021-11-13 01:43:41,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2021-11-13 01:43:42,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3932. [2021-11-13 01:43:42,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3932 states, 2880 states have (on average 1.296875) internal successors, (3735), 2901 states have internal predecessors, (3735), 850 states have call successors, (850), 201 states have call predecessors, (850), 201 states have return successors, (850), 842 states have call predecessors, (850), 850 states have call successors, (850) [2021-11-13 01:43:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 5435 transitions. [2021-11-13 01:43:42,132 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 5435 transitions. Word has length 167 [2021-11-13 01:43:42,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:42,137 INFO L470 AbstractCegarLoop]: Abstraction has 3932 states and 5435 transitions. [2021-11-13 01:43:42,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2021-11-13 01:43:42,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 5435 transitions. [2021-11-13 01:43:42,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-13 01:43:42,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:42,157 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:42,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:42,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:42,375 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:43:42,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:42,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1924261150, now seen corresponding path program 1 times [2021-11-13 01:43:42,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:42,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163354417] [2021-11-13 01:43:42,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:42,393 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:42,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:42,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:42,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:43:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:53,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 4606 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:43:53,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-13 01:43:53,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:54,332 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-13 01:43:54,333 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:54,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163354417] [2021-11-13 01:43:54,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163354417] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:43:54,333 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:43:54,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:43:54,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110900773] [2021-11-13 01:43:54,334 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:43:54,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:43:54,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:43:54,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:43:54,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:43:54,337 INFO L87 Difference]: Start difference. First operand 3932 states and 5435 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 01:43:56,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:43:57,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:43:57,620 INFO L93 Difference]: Finished difference Result 10949 states and 15143 transitions. [2021-11-13 01:43:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:43:57,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 180 [2021-11-13 01:43:57,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:43:57,691 INFO L225 Difference]: With dead ends: 10949 [2021-11-13 01:43:57,692 INFO L226 Difference]: Without dead ends: 7046 [2021-11-13 01:43:57,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:43:57,713 INFO L933 BasicCegarLoop]: 2131 mSDtfsCounter, 1482 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2816.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.63ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2949.57ms IncrementalHoareTripleChecker+Time [2021-11-13 01:43:57,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 3922 Invalid, 74 Unknown, 0 Unchecked, 12.63ms Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2949.57ms Time] [2021-11-13 01:43:57,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7046 states. [2021-11-13 01:43:58,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7046 to 7038. [2021-11-13 01:43:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7038 states, 5109 states have (on average 1.297709923664122) internal successors, (6630), 5151 states have internal predecessors, (6630), 1544 states have call successors, (1544), 384 states have call predecessors, (1544), 384 states have return successors, (1553), 1522 states have call predecessors, (1553), 1544 states have call successors, (1553) [2021-11-13 01:43:58,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7038 states to 7038 states and 9727 transitions. [2021-11-13 01:43:58,120 INFO L78 Accepts]: Start accepts. Automaton has 7038 states and 9727 transitions. Word has length 180 [2021-11-13 01:43:58,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:58,121 INFO L470 AbstractCegarLoop]: Abstraction has 7038 states and 9727 transitions. [2021-11-13 01:43:58,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-13 01:43:58,122 INFO L276 IsEmpty]: Start isEmpty. Operand 7038 states and 9727 transitions. [2021-11-13 01:43:58,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-13 01:43:58,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:58,128 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:58,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:43:58,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:58,350 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:43:58,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:58,351 INFO L85 PathProgramCache]: Analyzing trace with hash -82528149, now seen corresponding path program 1 times [2021-11-13 01:43:58,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:58,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163528499] [2021-11-13 01:43:58,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:58,363 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:58,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:58,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:58,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:44:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:09,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 4649 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:44:09,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:09,764 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-13 01:44:09,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:10,285 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-13 01:44:10,285 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:10,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163528499] [2021-11-13 01:44:10,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163528499] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:44:10,286 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:44:10,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:44:10,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91218725] [2021-11-13 01:44:10,286 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:44:10,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:44:10,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:10,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:44:10,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:44:10,288 INFO L87 Difference]: Start difference. First operand 7038 states and 9727 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 01:44:12,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:17,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:17,083 INFO L93 Difference]: Finished difference Result 20917 states and 28765 transitions. [2021-11-13 01:44:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:44:17,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 182 [2021-11-13 01:44:17,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:17,198 INFO L225 Difference]: With dead ends: 20917 [2021-11-13 01:44:17,198 INFO L226 Difference]: Without dead ends: 13908 [2021-11-13 01:44:17,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:44:17,239 INFO L933 BasicCegarLoop]: 2535 mSDtfsCounter, 2622 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5884.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2622 SdHoareTripleChecker+Valid, 5287 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.59ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6289.37ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:17,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2622 Valid, 5287 Invalid, 663 Unknown, 0 Unchecked, 27.59ms Time], IncrementalHoareTripleChecker [33 Valid, 629 Invalid, 1 Unknown, 0 Unchecked, 6289.37ms Time] [2021-11-13 01:44:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13908 states. [2021-11-13 01:44:17,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13908 to 13880. [2021-11-13 01:44:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13880 states, 10282 states have (on average 1.3046099980548531) internal successors, (13414), 10378 states have internal predecessors, (13414), 2779 states have call successors, (2779), 818 states have call predecessors, (2779), 818 states have return successors, (2788), 2713 states have call predecessors, (2788), 2779 states have call successors, (2788) [2021-11-13 01:44:17,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13880 states to 13880 states and 18981 transitions. [2021-11-13 01:44:18,000 INFO L78 Accepts]: Start accepts. Automaton has 13880 states and 18981 transitions. Word has length 182 [2021-11-13 01:44:18,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:18,002 INFO L470 AbstractCegarLoop]: Abstraction has 13880 states and 18981 transitions. [2021-11-13 01:44:18,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 01:44:18,003 INFO L276 IsEmpty]: Start isEmpty. Operand 13880 states and 18981 transitions. [2021-11-13 01:44:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-13 01:44:18,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:18,010 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 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] [2021-11-13 01:44:18,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:18,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:44:18,234 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:44:18,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:18,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1331136925, now seen corresponding path program 1 times [2021-11-13 01:44:18,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:18,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813148027] [2021-11-13 01:44:18,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:18,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:18,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:18,251 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:18,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:44:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:28,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 4621 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:44:28,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-13 01:44:29,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-13 01:44:29,979 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:29,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813148027] [2021-11-13 01:44:29,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813148027] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:44:29,980 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:44:29,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:44:29,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855164936] [2021-11-13 01:44:29,980 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:44:29,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:44:29,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:29,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:44:29,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:44:29,982 INFO L87 Difference]: Start difference. First operand 13880 states and 18981 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 01:44:32,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:44:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:44:37,385 INFO L93 Difference]: Finished difference Result 55109 states and 75387 transitions. [2021-11-13 01:44:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:44:37,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 188 [2021-11-13 01:44:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:44:37,600 INFO L225 Difference]: With dead ends: 55109 [2021-11-13 01:44:37,600 INFO L226 Difference]: Without dead ends: 41258 [2021-11-13 01:44:37,669 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:44:37,671 INFO L933 BasicCegarLoop]: 2516 mSDtfsCounter, 4849 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 564 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5879.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 5606 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.43ms SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6459.03ms IncrementalHoareTripleChecker+Time [2021-11-13 01:44:37,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4849 Valid, 5606 Invalid, 1170 Unknown, 0 Unchecked, 23.43ms Time], IncrementalHoareTripleChecker [564 Valid, 605 Invalid, 1 Unknown, 0 Unchecked, 6459.03ms Time] [2021-11-13 01:44:37,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41258 states. [2021-11-13 01:44:39,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41258 to 41182. [2021-11-13 01:44:39,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41182 states, 30486 states have (on average 1.3052548710883685) internal successors, (39792), 30798 states have internal predecessors, (39792), 8241 states have call successors, (8241), 2454 states have call predecessors, (8241), 2454 states have return successors, (8268), 8019 states have call predecessors, (8268), 8241 states have call successors, (8268) [2021-11-13 01:44:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41182 states to 41182 states and 56301 transitions. [2021-11-13 01:44:39,784 INFO L78 Accepts]: Start accepts. Automaton has 41182 states and 56301 transitions. Word has length 188 [2021-11-13 01:44:39,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:44:39,785 INFO L470 AbstractCegarLoop]: Abstraction has 41182 states and 56301 transitions. [2021-11-13 01:44:39,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 01:44:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 41182 states and 56301 transitions. [2021-11-13 01:44:39,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-13 01:44:39,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:44:39,794 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 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] [2021-11-13 01:44:39,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:44:40,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:44:40,010 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:44:40,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:44:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1965608317, now seen corresponding path program 1 times [2021-11-13 01:44:40,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:44:40,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934167206] [2021-11-13 01:44:40,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:44:40,018 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:44:40,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:44:40,019 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:44:40,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:44:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:44:51,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 4687 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:44:51,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:44:51,585 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2021-11-13 01:44:51,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:44:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-13 01:44:52,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:44:52,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934167206] [2021-11-13 01:44:52,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934167206] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:44:52,164 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:44:52,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:44:52,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689145090] [2021-11-13 01:44:52,165 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:44:52,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:44:52,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:44:52,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:44:52,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:44:52,167 INFO L87 Difference]: Start difference. First operand 41182 states and 56301 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-13 01:44:54,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:45:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:45:00,930 INFO L93 Difference]: Finished difference Result 163885 states and 224055 transitions. [2021-11-13 01:45:00,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:45:00,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 206 [2021-11-13 01:45:00,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:45:01,727 INFO L225 Difference]: With dead ends: 163885 [2021-11-13 01:45:01,728 INFO L226 Difference]: Without dead ends: 122732 [2021-11-13 01:45:01,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:45:01,858 INFO L933 BasicCegarLoop]: 3732 mSDtfsCounter, 3872 mSDsluCounter, 3096 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 323 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5384.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3872 SdHoareTripleChecker+Valid, 6828 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.24ms SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5819.54ms IncrementalHoareTripleChecker+Time [2021-11-13 01:45:01,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3872 Valid, 6828 Invalid, 929 Unknown, 0 Unchecked, 18.24ms Time], IncrementalHoareTripleChecker [323 Valid, 605 Invalid, 1 Unknown, 0 Unchecked, 5819.54ms Time] [2021-11-13 01:45:01,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122732 states. [2021-11-13 01:45:06,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122732 to 122620. [2021-11-13 01:45:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122620 states, 90774 states have (on average 1.3045806067816776) internal successors, (118422), 91674 states have internal predecessors, (118422), 24483 states have call successors, (24483), 7362 states have call predecessors, (24483), 7362 states have return successors, (24564), 23853 states have call predecessors, (24564), 24483 states have call successors, (24564) [2021-11-13 01:45:08,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122620 states to 122620 states and 167469 transitions. [2021-11-13 01:45:08,513 INFO L78 Accepts]: Start accepts. Automaton has 122620 states and 167469 transitions. Word has length 206 [2021-11-13 01:45:08,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:08,514 INFO L470 AbstractCegarLoop]: Abstraction has 122620 states and 167469 transitions. [2021-11-13 01:45:08,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-13 01:45:08,515 INFO L276 IsEmpty]: Start isEmpty. Operand 122620 states and 167469 transitions. [2021-11-13 01:45:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-13 01:45:08,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:45:08,522 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 12, 12, 12, 12, 12, 12, 3, 3, 3, 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] [2021-11-13 01:45:08,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:45:08,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:08,738 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:45:08,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:45:08,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1726899071, now seen corresponding path program 1 times [2021-11-13 01:45:08,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:45:08,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654175238] [2021-11-13 01:45:08,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:45:08,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:45:08,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:45:08,748 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:45:08,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:45:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:45:19,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 4635 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:45:19,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:45:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2021-11-13 01:45:20,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:45:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2021-11-13 01:45:20,652 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:45:20,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654175238] [2021-11-13 01:45:20,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654175238] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:45:20,653 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:45:20,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:45:20,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351790796] [2021-11-13 01:45:20,653 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:45:20,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:45:20,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:45:20,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:45:20,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:45:20,655 INFO L87 Difference]: Start difference. First operand 122620 states and 167469 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-13 01:45:23,255 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:45:33,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:45:33,098 INFO L93 Difference]: Finished difference Result 359788 states and 489839 transitions. [2021-11-13 01:45:33,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:45:33,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 206 [2021-11-13 01:45:33,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:45:34,472 INFO L225 Difference]: With dead ends: 359788 [2021-11-13 01:45:34,472 INFO L226 Difference]: Without dead ends: 237197 [2021-11-13 01:45:34,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:45:34,738 INFO L933 BasicCegarLoop]: 2159 mSDtfsCounter, 2031 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4947.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 5113 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.05ms SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5296.63ms IncrementalHoareTripleChecker+Time [2021-11-13 01:45:34,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2031 Valid, 5113 Invalid, 639 Unknown, 0 Unchecked, 13.05ms Time], IncrementalHoareTripleChecker [47 Valid, 591 Invalid, 1 Unknown, 0 Unchecked, 5296.63ms Time] [2021-11-13 01:45:34,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237197 states. [2021-11-13 01:45:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237197 to 237195. [2021-11-13 01:45:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237195 states, 175783 states have (on average 1.3033342245837196) internal successors, (229104), 177259 states have internal predecessors, (229104), 46489 states have call successors, (46489), 14922 states have call predecessors, (46489), 14922 states have return successors, (46651), 45553 states have call predecessors, (46651), 46489 states have call successors, (46651) [2021-11-13 01:45:46,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237195 states to 237195 states and 322244 transitions. [2021-11-13 01:45:46,288 INFO L78 Accepts]: Start accepts. Automaton has 237195 states and 322244 transitions. Word has length 206 [2021-11-13 01:45:46,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:45:46,289 INFO L470 AbstractCegarLoop]: Abstraction has 237195 states and 322244 transitions. [2021-11-13 01:45:46,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-13 01:45:46,289 INFO L276 IsEmpty]: Start isEmpty. Operand 237195 states and 322244 transitions. [2021-11-13 01:45:46,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-13 01:45:46,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:45:46,301 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 12, 12, 12, 12, 12, 12, 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] [2021-11-13 01:45:46,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:45:46,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:45:46,515 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 01:45:46,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:45:46,515 INFO L85 PathProgramCache]: Analyzing trace with hash -721155707, now seen corresponding path program 1 times [2021-11-13 01:45:46,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:45:46,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442090606] [2021-11-13 01:45:46,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:45:46,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:45:46,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:45:46,523 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:45:46,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8fb7d4-6cf8-4521-bfbc-0bfa89e102ec/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process