./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:14:26,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:14:26,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:14:26,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:14:26,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:14:26,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:14:26,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:14:26,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:14:26,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:14:26,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:14:26,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:14:26,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:14:26,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:14:26,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:14:26,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:14:26,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:14:26,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:14:26,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:14:26,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:14:26,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:14:26,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:14:26,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:14:26,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:14:26,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:14:26,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:14:26,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:14:26,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:14:26,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:14:26,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:14:26,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:14:26,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:14:26,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:14:26,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:14:26,563 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:14:26,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:14:26,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:14:26,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:14:26,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:14:26,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:14:26,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:14:26,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:14:26,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:14:26,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:14:26,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:14:26,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:14:26,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:14:26,596 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:14:26,596 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:14:26,596 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:14:26,596 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:14:26,596 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:14:26,596 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:14:26,597 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:14:26,597 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:14:26,597 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:14:26,597 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:14:26,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:14:26,598 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:14:26,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:14:26,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:14:26,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:14:26,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:14:26,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:14:26,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:14:26,599 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:14:26,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:14:26,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:14:26,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:14:26,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:14:26,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:14:26,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:26,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:14:26,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:14:26,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:14:26,601 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:14:26,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:14:26,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:14:26,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:14:26,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:14:26,602 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_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2021-11-19 14:14:26,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:14:26,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:14:26,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:14:26,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:14:26,901 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:14:26,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-11-19 14:14:26,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data/ff3f786bb/494ea87ce0e142c8b2c59221679166c4/FLAGf72d9cc30 [2021-11-19 14:14:27,948 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:14:27,950 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-11-19 14:14:28,009 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data/ff3f786bb/494ea87ce0e142c8b2c59221679166c4/FLAGf72d9cc30 [2021-11-19 14:14:28,334 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data/ff3f786bb/494ea87ce0e142c8b2c59221679166c4 [2021-11-19 14:14:28,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:14:28,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:14:28,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:28,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:14:28,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:14:28,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:28" (1/1) ... [2021-11-19 14:14:28,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76aee6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:28, skipping insertion in model container [2021-11-19 14:14:28,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:28" (1/1) ... [2021-11-19 14:14:28,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:14:28,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:30,219 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,225 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,263 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,267 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,281 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,282 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,283 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,284 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,304 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,319 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,375 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,384 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,402 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,419 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,584 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,585 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,587 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,776 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,829 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,861 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,873 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,874 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,879 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,879 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,884 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,889 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,894 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,906 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,913 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,932 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,937 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,944 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,950 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,957 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,964 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,990 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:30,991 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:14:31,042 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2021-11-19 14:14:31,196 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:31,215 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:14:31,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@55472e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:31, skipping insertion in model container [2021-11-19 14:14:31,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:31,216 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:14:31,219 INFO L158 Benchmark]: Toolchain (without parser) took 2879.02ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 50.5MB in the beginning and 67.1MB in the end (delta: -16.6MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2021-11-19 14:14:31,220 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:14:31,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2876.64ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 50.2MB in the beginning and 67.1MB in the end (delta: -16.9MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2021-11-19 14:14:31,224 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 86.0MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2876.64ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 50.2MB in the beginning and 67.1MB in the end (delta: -16.9MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5419]: 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_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:14:33,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:14:33,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:14:33,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:14:33,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:14:33,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:14:33,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:14:33,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:14:33,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:14:33,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:14:33,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:14:33,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:14:33,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:14:33,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:14:33,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:14:33,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:14:33,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:14:33,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:14:33,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:14:33,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:14:33,670 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:14:33,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:14:33,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:14:33,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:14:33,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:14:33,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:14:33,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:14:33,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:14:33,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:14:33,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:14:33,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:14:33,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:14:33,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:14:33,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:14:33,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:14:33,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:14:33,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:14:33,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:14:33,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:14:33,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:14:33,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:14:33,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:14:33,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:14:33,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:14:33,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:14:33,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:14:33,776 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:14:33,776 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:14:33,776 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:14:33,777 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:14:33,778 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:14:33,778 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:14:33,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:14:33,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:14:33,781 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:14:33,781 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:14:33,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:14:33,782 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:14:33,782 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:14:33,782 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:14:33,782 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:14:33,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:14:33,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:14:33,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:14:33,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:14:33,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:14:33,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:33,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:14:33,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:14:33,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:14:33,785 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:14:33,785 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:14:33,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:14:33,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:14:33,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:14:33,786 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_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4e2d1a15968d1244ea21dd78c93930ffcefcf7ed108cd6721571103f64feb4f [2021-11-19 14:14:34,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:14:34,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:14:34,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:14:34,235 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:14:34,236 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:14:34,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-11-19 14:14:34,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data/ffc0352f8/617b5f006a1b467ea5c89dd0267225f4/FLAG771673280 [2021-11-19 14:14:35,531 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:14:35,533 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-11-19 14:14:35,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data/ffc0352f8/617b5f006a1b467ea5c89dd0267225f4/FLAG771673280 [2021-11-19 14:14:35,736 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/data/ffc0352f8/617b5f006a1b467ea5c89dd0267225f4 [2021-11-19 14:14:35,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:14:35,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:14:35,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:35,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:14:35,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:14:35,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:35" (1/1) ... [2021-11-19 14:14:35,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6216764c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:35, skipping insertion in model container [2021-11-19 14:14:35,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:14:35" (1/1) ... [2021-11-19 14:14:35,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:14:35,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:38,693 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2021-11-19 14:14:38,827 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:38,863 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:14:38,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:14:39,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2021-11-19 14:14:39,299 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:39,314 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:14:39,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/sv-benchmarks/c/ldv-linux-3.7.3/main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i[372197,372210] [2021-11-19 14:14:39,862 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:14:39,954 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:14:39,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39 WrapperNode [2021-11-19 14:14:39,954 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:14:39,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:14:39,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:14:39,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:14:39,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,308 INFO L137 Inliner]: procedures = 350, calls = 2627, calls flagged for inlining = 143, calls inlined = 135, statements flattened = 6445 [2021-11-19 14:14:40,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:14:40,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:14:40,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:14:40,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:14:40,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:14:40,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:14:40,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:14:40,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:14:40,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (1/1) ... [2021-11-19 14:14:40,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:14:40,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:14:40,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:14:40,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:14:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used_and_signal [2021-11-19 14:14:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used_and_signal [2021-11-19 14:14:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2021-11-19 14:14:40,895 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2021-11-19 14:14:40,895 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_net [2021-11-19 14:14:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_net [2021-11-19 14:14:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:14:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2021-11-19 14:14:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2021-11-19 14:14:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-19 14:14:40,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-19 14:14:40,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:14:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:14:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2021-11-19 14:14:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2021-11-19 14:14:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:14:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:14:40,897 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2021-11-19 14:14:40,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2021-11-19 14:14:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:14:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-11-19 14:14:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-11-19 14:14:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_check_owner [2021-11-19 14:14:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_check_owner [2021-11-19 14:14:40,898 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2021-11-19 14:14:40,898 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2021-11-19 14:14:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx [2021-11-19 14:14:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx [2021-11-19 14:14:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-19 14:14:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-19 14:14:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-19 14:14:40,899 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-19 14:14:40,899 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-19 14:14:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-19 14:14:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2021-11-19 14:14:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2021-11-19 14:14:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:14:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:14:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2021-11-19 14:14:40,900 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2021-11-19 14:14:40,900 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:14:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:14:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-19 14:14:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-19 14:14:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-19 14:14:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-19 14:14:40,901 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-19 14:14:40,901 INFO L130 BoogieDeclarations]: Found specification of procedure __vhost_add_used_n [2021-11-19 14:14:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __vhost_add_used_n [2021-11-19 14:14:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_start [2021-11-19 14:14:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_start [2021-11-19 14:14:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2021-11-19 14:14:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2021-11-19 14:14:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rx [2021-11-19 14:14:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rx [2021-11-19 14:14:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure handle_tx_kick [2021-11-19 14:14:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_tx_kick [2021-11-19 14:14:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-19 14:14:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-19 14:14:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-19 14:14:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-19 14:14:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-19 14:14:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-19 14:14:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2021-11-19 14:14:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2021-11-19 14:14:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_init [2021-11-19 14:14:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_init [2021-11-19 14:14:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:14:40,904 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:14:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:14:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2021-11-19 14:14:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2021-11-19 14:14:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure move_iovec_hdr [2021-11-19 14:14:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure move_iovec_hdr [2021-11-19 14:14:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:14:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-19 14:14:40,905 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-19 14:14:40,905 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2021-11-19 14:14:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2021-11-19 14:14:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop [2021-11-19 14:14:40,906 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop [2021-11-19 14:14:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:14:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:14:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:14:40,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:14:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:14:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:14:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2021-11-19 14:14:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2021-11-19 14:14:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_callback [2021-11-19 14:14:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_callback [2021-11-19 14:14:40,907 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-19 14:14:40,907 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-19 14:14:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:14:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush_vq [2021-11-19 14:14:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush_vq [2021-11-19 14:14:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:14:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:14:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_stop_vq [2021-11-19 14:14:40,908 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_stop_vq [2021-11-19 14:14:40,908 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 14:14:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 14:14:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:14:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:14:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2021-11-19 14:14:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2021-11-19 14:14:40,909 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-19 14:14:40,909 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-19 14:14:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2021-11-19 14:14:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2021-11-19 14:14:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2021-11-19 14:14:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2021-11-19 14:14:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure tx_poll_stop [2021-11-19 14:14:40,910 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_poll_stop [2021-11-19 14:14:40,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-11-19 14:14:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-11-19 14:14:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-19 14:14:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-19 14:14:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-19 14:14:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-19 14:14:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2021-11-19 14:14:40,911 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2021-11-19 14:14:40,911 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:14:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:14:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2021-11-19 14:14:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2021-11-19 14:14:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2021-11-19 14:14:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2021-11-19 14:14:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2021-11-19 14:14:40,912 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2021-11-19 14:14:40,912 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_flush [2021-11-19 14:14:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_flush [2021-11-19 14:14:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-11-19 14:14:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-11-19 14:14:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:14:40,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:14:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-19 14:14:40,913 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put [2021-11-19 14:14:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put [2021-11-19 14:14:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-19 14:14:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-19 14:14:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2021-11-19 14:14:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2021-11-19 14:14:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2021-11-19 14:14:40,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2021-11-19 14:14:40,914 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2021-11-19 14:14:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2021-11-19 14:14:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2021-11-19 14:14:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2021-11-19 14:14:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_ioctl [2021-11-19 14:14:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_ioctl [2021-11-19 14:14:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_net_disable_vq [2021-11-19 14:14:40,915 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_net_disable_vq [2021-11-19 14:14:40,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:14:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:14:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:14:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:14:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2021-11-19 14:14:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2021-11-19 14:14:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-19 14:14:40,916 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-19 14:14:40,916 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-19 14:14:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-19 14:14:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:14:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:14:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_ubuf_put_and_wait [2021-11-19 14:14:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_ubuf_put_and_wait [2021-11-19 14:14:40,917 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-11-19 14:14:40,917 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-11-19 14:14:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:14:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2021-11-19 14:14:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2021-11-19 14:14:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-19 14:14:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-19 14:14:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_get_vq_desc [2021-11-19 14:14:40,918 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_get_vq_desc [2021-11-19 14:14:40,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:14:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2021-11-19 14:14:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2021-11-19 14:14:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_enable_notify [2021-11-19 14:14:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_enable_notify [2021-11-19 14:14:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2021-11-19 14:14:40,919 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2021-11-19 14:14:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:14:40,919 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-19 14:14:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-19 14:14:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:14:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:14:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:14:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2021-11-19 14:14:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2021-11-19 14:14:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:14:40,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:14:40,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:14:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2021-11-19 14:14:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2021-11-19 14:14:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-19 14:14:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-19 14:14:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-19 14:14:40,921 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-19 14:14:40,921 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2021-11-19 14:14:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2021-11-19 14:14:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-19 14:14:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-19 14:14:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 14:14:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 14:14:40,922 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2021-11-19 14:14:40,922 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2021-11-19 14:14:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-19 14:14:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-19 14:14:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:14:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:14:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2021-11-19 14:14:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2021-11-19 14:14:40,923 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_discard_vq_desc [2021-11-19 14:14:40,923 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_discard_vq_desc [2021-11-19 14:14:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-11-19 14:14:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-11-19 14:14:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2021-11-19 14:14:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2021-11-19 14:14:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2021-11-19 14:14:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2021-11-19 14:14:40,924 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2021-11-19 14:14:40,924 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2021-11-19 14:14:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-19 14:14:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-19 14:14:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:14:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:14:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2021-11-19 14:14:40,925 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2021-11-19 14:14:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:14:40,925 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_zerocopy_signal_used [2021-11-19 14:14:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_zerocopy_signal_used [2021-11-19 14:14:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_start [2021-11-19 14:14:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_start [2021-11-19 14:14:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-19 14:14:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-19 14:14:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:14:40,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:14:40,926 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 14:14:40,927 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 14:14:41,962 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:14:41,969 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:15:08,330 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857: SUMMARY for call __copy_to_user_#t~ret139#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_to_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2021-11-19 14:15:08,330 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5857-1: __copy_to_user_~tmp___1~3#1 := __copy_to_user_#t~ret139#1;havoc __copy_to_user_#t~ret139#1; [2021-11-19 14:15:08,330 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845: SUMMARY for call __copy_to_user_#t~ret138#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_to_user_~ret~2#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2021-11-19 14:15:08,330 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5845-1: __copy_to_user_~tmp___0~6#1 := __copy_to_user_#t~ret138#1;havoc __copy_to_user_#t~ret138#1; [2021-11-19 14:15:08,330 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume __copy_to_user_#t~switch137#1; [2021-11-19 14:15:08,331 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5866: assume !__copy_to_user_#t~switch137#1; [2021-11-19 14:15:08,331 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume 0bv64 != __copy_to_user_~tmp___1~3#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-11-19 14:15:08,331 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5858: assume !(0bv64 != __copy_to_user_~tmp___1~3#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-11-19 14:15:08,331 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume __copy_to_user_#t~switch137#1; [2021-11-19 14:15:08,331 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5854: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := true; [2021-11-19 14:15:08,331 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5825: havoc __copy_to_user_#t~switch137#1; [2021-11-19 14:15:08,331 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume 0bv64 != __copy_to_user_~tmp___0~6#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-11-19 14:15:08,332 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5846: assume !(0bv64 != __copy_to_user_~tmp___0~6#1);__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-11-19 14:15:08,332 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume __copy_to_user_#t~switch137#1; [2021-11-19 14:15:08,332 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5842: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 16bv32 == __copy_to_user_~size#1; [2021-11-19 14:15:08,332 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-11-19 14:15:08,332 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5838: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 10bv32 == __copy_to_user_~size#1; [2021-11-19 14:15:08,332 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867: SUMMARY for call __copy_to_user_#t~ret140#1 := copy_user_generic(__copy_to_user_~dst#1.base, __copy_to_user_~dst#1.offset, __copy_to_user_~src#1.base, __copy_to_user_~src#1.offset, __copy_to_user_~size#1); srcloc: null [2021-11-19 14:15:08,332 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-11-19 14:15:08,333 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5834: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 8bv32 == __copy_to_user_~size#1; [2021-11-19 14:15:08,333 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5867-1: __copy_to_user_~tmp___2~4#1 := __copy_to_user_#t~ret140#1;havoc __copy_to_user_#t~ret140#1;__copy_to_user_#res#1 := __copy_to_user_~tmp___2~4#1[32:0]; [2021-11-19 14:15:08,333 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-11-19 14:15:08,333 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5830: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 4bv32 == __copy_to_user_~size#1; [2021-11-19 14:15:08,333 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_#t~switch137#1;__copy_to_user_#res#1 := __copy_to_user_~ret~2#1; [2021-11-19 14:15:08,333 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_#t~switch137#1;__copy_to_user_#t~switch137#1 := __copy_to_user_#t~switch137#1 || 2bv32 == __copy_to_user_~size#1; [2021-11-19 14:15:27,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785: SUMMARY for call __copy_from_user_#t~ret133#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~1#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2021-11-19 14:15:27,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5785-1: __copy_from_user_~tmp___0~5#1 := __copy_from_user_#t~ret133#1;havoc __copy_from_user_#t~ret133#1; [2021-11-19 14:15:27,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume 0bv64 != __copy_from_user_~tmp___0~5#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-11-19 14:15:27,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5786: assume !(0bv64 != __copy_from_user_~tmp___0~5#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-11-19 14:15:27,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5760: havoc __copy_from_user_#t~switch132#1; [2021-11-19 14:15:27,961 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume __copy_from_user_#t~switch132#1; [2021-11-19 14:15:27,961 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5794: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := true; [2021-11-19 14:15:27,961 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798: SUMMARY for call __copy_from_user_#t~ret134#1 := ldv__builtin_expect(~sign_extendFrom32To64((if 0bv32 != __copy_from_user_~ret~1#1 then 1bv32 else 0bv32)), 0bv64); srcloc: null [2021-11-19 14:15:27,961 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5798-1: __copy_from_user_~tmp___1~2#1 := __copy_from_user_#t~ret134#1;havoc __copy_from_user_#t~ret134#1; [2021-11-19 14:15:27,961 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume 0bv64 != __copy_from_user_~tmp___1~2#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-11-19 14:15:27,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5799: assume !(0bv64 != __copy_from_user_~tmp___1~2#1);__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-11-19 14:15:27,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-11-19 14:15:27,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5766: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 4bv32 == __copy_from_user_~size#1; [2021-11-19 14:15:27,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-11-19 14:15:27,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5771: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 8bv32 == __copy_from_user_~size#1; [2021-11-19 14:15:27,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 2bv32 == __copy_from_user_~size#1; [2021-11-19 14:15:27,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-11-19 14:15:27,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume __copy_from_user_#t~switch132#1; [2021-11-19 14:15:27,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5807: assume !__copy_from_user_#t~switch132#1; [2021-11-19 14:15:27,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808-1: __copy_from_user_~tmp___2~3#1 := __copy_from_user_#t~ret135#1;havoc __copy_from_user_#t~ret135#1;__copy_from_user_#res#1 := __copy_from_user_~tmp___2~3#1[32:0]; [2021-11-19 14:15:27,963 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5808: SUMMARY for call __copy_from_user_#t~ret135#1 := copy_user_generic(__copy_from_user_~dst#1.base, __copy_from_user_~dst#1.offset, __copy_from_user_~src#1.base, __copy_from_user_~src#1.offset, __copy_from_user_~size#1); srcloc: null [2021-11-19 14:15:27,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume __copy_from_user_#t~switch132#1;__copy_from_user_#res#1 := __copy_from_user_~ret~1#1; [2021-11-19 14:15:27,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5776: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 10bv32 == __copy_from_user_~size#1; [2021-11-19 14:15:27,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume __copy_from_user_#t~switch132#1; [2021-11-19 14:15:27,964 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5781: assume !__copy_from_user_#t~switch132#1;__copy_from_user_#t~switch132#1 := __copy_from_user_#t~switch132#1 || 16bv32 == __copy_from_user_~size#1; [2021-11-19 14:15:41,233 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:15:41,256 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:15:41,256 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:15:41,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:41 BoogieIcfgContainer [2021-11-19 14:15:41,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:15:41,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:15:41,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:15:41,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:15:41,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:14:35" (1/3) ... [2021-11-19 14:15:41,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670df56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:15:41, skipping insertion in model container [2021-11-19 14:15:41,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:14:39" (2/3) ... [2021-11-19 14:15:41,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670df56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:15:41, skipping insertion in model container [2021-11-19 14:15:41,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:41" (3/3) ... [2021-11-19 14:15:41,271 INFO L111 eAbstractionObserver]: Analyzing ICFG main1_drivers-vhost-vhost_net-ko--32_7a--linux-3.7.3.i [2021-11-19 14:15:41,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:15:41,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:15:41,337 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:15:41,344 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:15:41,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:15:41,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 2218 states, 1540 states have (on average 1.346103896103896) internal successors, (2073), 1586 states have internal predecessors, (2073), 572 states have call successors, (572), 104 states have call predecessors, (572), 104 states have return successors, (572), 567 states have call predecessors, (572), 572 states have call successors, (572) [2021-11-19 14:15:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-19 14:15:41,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:41,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:41,415 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:41,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:41,421 INFO L85 PathProgramCache]: Analyzing trace with hash -801145376, now seen corresponding path program 1 times [2021-11-19 14:15:41,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:41,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649186351] [2021-11-19 14:15:41,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:41,438 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:41,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:41,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:41,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:15:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:42,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:15:42,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:42,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:42,594 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:42,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649186351] [2021-11-19 14:15:42,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649186351] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:42,596 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:42,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:15:42,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109252529] [2021-11-19 14:15:42,599 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:42,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:15:42,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:42,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:15:42,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:42,640 INFO L87 Difference]: Start difference. First operand has 2218 states, 1540 states have (on average 1.346103896103896) internal successors, (2073), 1586 states have internal predecessors, (2073), 572 states have call successors, (572), 104 states have call predecessors, (572), 104 states have return successors, (572), 567 states have call predecessors, (572), 572 states have call successors, (572) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:15:44,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:15:45,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:45,068 INFO L93 Difference]: Finished difference Result 4422 states and 6498 transitions. [2021-11-19 14:15:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:45,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-11-19 14:15:45,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:45,115 INFO L225 Difference]: With dead ends: 4422 [2021-11-19 14:15:45,116 INFO L226 Difference]: Without dead ends: 2207 [2021-11-19 14:15:45,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:45,144 INFO L933 BasicCegarLoop]: 3205 mSDtfsCounter, 3193 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3193 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:45,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3193 Valid, 3205 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:15:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2021-11-19 14:15:45,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2021-11-19 14:15:45,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1532 states have (on average 1.3426892950391645) internal successors, (2057), 1575 states have internal predecessors, (2057), 571 states have call successors, (571), 104 states have call predecessors, (571), 103 states have return successors, (566), 561 states have call predecessors, (566), 566 states have call successors, (566) [2021-11-19 14:15:45,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3194 transitions. [2021-11-19 14:15:45,436 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3194 transitions. Word has length 16 [2021-11-19 14:15:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:45,438 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3194 transitions. [2021-11-19 14:15:45,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:15:45,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3194 transitions. [2021-11-19 14:15:45,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-19 14:15:45,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:45,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:45,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:45,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:45,657 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:45,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:45,660 INFO L85 PathProgramCache]: Analyzing trace with hash 933280137, now seen corresponding path program 1 times [2021-11-19 14:15:45,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:45,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244564548] [2021-11-19 14:15:45,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:45,663 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:45,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:45,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:45,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:15:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:46,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:15:46,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:46,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:46,821 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:46,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244564548] [2021-11-19 14:15:46,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244564548] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:46,822 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:46,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:15:46,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032826694] [2021-11-19 14:15:46,822 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:46,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:15:46,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:46,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:15:46,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:46,831 INFO L87 Difference]: Start difference. First operand 2207 states and 3194 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:15:48,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:15:49,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:49,055 INFO L93 Difference]: Finished difference Result 2209 states and 3195 transitions. [2021-11-19 14:15:49,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:49,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2021-11-19 14:15:49,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:49,075 INFO L225 Difference]: With dead ends: 2209 [2021-11-19 14:15:49,075 INFO L226 Difference]: Without dead ends: 2206 [2021-11-19 14:15:49,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:49,079 INFO L933 BasicCegarLoop]: 3191 mSDtfsCounter, 3178 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3178 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:49,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3178 Valid, 3191 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:15:49,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2021-11-19 14:15:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2206. [2021-11-19 14:15:49,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1532 states have (on average 1.3420365535248042) internal successors, (2056), 1574 states have internal predecessors, (2056), 570 states have call successors, (570), 104 states have call predecessors, (570), 103 states have return successors, (566), 561 states have call predecessors, (566), 566 states have call successors, (566) [2021-11-19 14:15:49,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3192 transitions. [2021-11-19 14:15:49,254 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3192 transitions. Word has length 17 [2021-11-19 14:15:49,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:49,254 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 3192 transitions. [2021-11-19 14:15:49,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:15:49,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3192 transitions. [2021-11-19 14:15:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 14:15:49,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:49,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:49,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:49,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:49,471 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:49,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:49,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1134098941, now seen corresponding path program 1 times [2021-11-19 14:15:49,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:49,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459234822] [2021-11-19 14:15:49,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:49,473 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:49,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:49,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:15:50,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:50,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:15:50,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:50,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:50,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:50,520 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:50,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459234822] [2021-11-19 14:15:50,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459234822] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:50,521 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:50,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:15:50,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669131330] [2021-11-19 14:15:50,521 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:50,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:15:50,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:50,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:15:50,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:50,523 INFO L87 Difference]: Start difference. First operand 2206 states and 3192 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:15:52,578 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:15:52,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:52,722 INFO L93 Difference]: Finished difference Result 2208 states and 3193 transitions. [2021-11-19 14:15:52,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:52,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2021-11-19 14:15:52,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:52,742 INFO L225 Difference]: With dead ends: 2208 [2021-11-19 14:15:52,742 INFO L226 Difference]: Without dead ends: 2205 [2021-11-19 14:15:52,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:52,745 INFO L933 BasicCegarLoop]: 3189 mSDtfsCounter, 3175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3175 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:52,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3175 Valid, 3189 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:15:52,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2021-11-19 14:15:52,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2021-11-19 14:15:52,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1532 states have (on average 1.3413838120104438) internal successors, (2055), 1573 states have internal predecessors, (2055), 569 states have call successors, (569), 104 states have call predecessors, (569), 103 states have return successors, (566), 561 states have call predecessors, (566), 566 states have call successors, (566) [2021-11-19 14:15:52,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3190 transitions. [2021-11-19 14:15:52,911 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3190 transitions. Word has length 18 [2021-11-19 14:15:52,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:52,911 INFO L470 AbstractCegarLoop]: Abstraction has 2205 states and 3190 transitions. [2021-11-19 14:15:52,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:15:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3190 transitions. [2021-11-19 14:15:52,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-19 14:15:52,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:52,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:15:52,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:53,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:53,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:53,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:53,132 INFO L85 PathProgramCache]: Analyzing trace with hash -798336052, now seen corresponding path program 1 times [2021-11-19 14:15:53,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:53,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322176250] [2021-11-19 14:15:53,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:53,133 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:53,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:53,139 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:53,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:15:53,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:53,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:15:53,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:54,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:54,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:54,278 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:54,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322176250] [2021-11-19 14:15:54,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1322176250] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:54,278 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:54,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:15:54,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58605379] [2021-11-19 14:15:54,279 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:54,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:15:54,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:54,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:15:54,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:54,280 INFO L87 Difference]: Start difference. First operand 2205 states and 3190 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:15:56,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:15:56,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:56,608 INFO L93 Difference]: Finished difference Result 4994 states and 7160 transitions. [2021-11-19 14:15:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:15:56,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-11-19 14:15:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:56,638 INFO L225 Difference]: With dead ends: 4994 [2021-11-19 14:15:56,638 INFO L226 Difference]: Without dead ends: 2791 [2021-11-19 14:15:56,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:15:56,655 INFO L933 BasicCegarLoop]: 3581 mSDtfsCounter, 1201 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:56,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 6307 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:15:56,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2021-11-19 14:15:56,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2788. [2021-11-19 14:15:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 1930 states have (on average 1.3233160621761657) internal successors, (2554), 1990 states have internal predecessors, (2554), 688 states have call successors, (688), 172 states have call predecessors, (688), 169 states have return successors, (693), 667 states have call predecessors, (693), 679 states have call successors, (693) [2021-11-19 14:15:56,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3935 transitions. [2021-11-19 14:15:56,892 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3935 transitions. Word has length 19 [2021-11-19 14:15:56,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:56,892 INFO L470 AbstractCegarLoop]: Abstraction has 2788 states and 3935 transitions. [2021-11-19 14:15:56,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 14:15:56,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3935 transitions. [2021-11-19 14:15:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-19 14:15:56,907 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:56,907 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 14:15:56,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:57,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:57,129 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:57,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:57,130 INFO L85 PathProgramCache]: Analyzing trace with hash -587069341, now seen corresponding path program 1 times [2021-11-19 14:15:57,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:57,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395153711] [2021-11-19 14:15:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:57,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:57,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:57,132 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:57,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:15:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:15:57,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:15:57,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:15:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:15:58,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:15:58,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:15:58,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:15:58,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395153711] [2021-11-19 14:15:58,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395153711] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:15:58,572 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:15:58,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:15:58,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761882407] [2021-11-19 14:15:58,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:15:58,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:15:58,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:15:58,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:15:58,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:15:58,574 INFO L87 Difference]: Start difference. First operand 2788 states and 3935 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 14:15:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:15:58,998 INFO L93 Difference]: Finished difference Result 5605 states and 7919 transitions. [2021-11-19 14:15:58,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:15:58,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 55 [2021-11-19 14:15:58,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:15:59,023 INFO L225 Difference]: With dead ends: 5605 [2021-11-19 14:15:59,023 INFO L226 Difference]: Without dead ends: 2828 [2021-11-19 14:15:59,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:15:59,038 INFO L933 BasicCegarLoop]: 3176 mSDtfsCounter, 58 mSDsluCounter, 6250 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 9426 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:15:59,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 9426 Invalid, 25 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:15:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2021-11-19 14:15:59,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2828. [2021-11-19 14:15:59,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2828 states, 1962 states have (on average 1.3236493374108054) internal successors, (2597), 2022 states have internal predecessors, (2597), 696 states have call successors, (696), 172 states have call predecessors, (696), 169 states have return successors, (701), 675 states have call predecessors, (701), 687 states have call successors, (701) [2021-11-19 14:15:59,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3994 transitions. [2021-11-19 14:15:59,248 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3994 transitions. Word has length 55 [2021-11-19 14:15:59,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:15:59,250 INFO L470 AbstractCegarLoop]: Abstraction has 2828 states and 3994 transitions. [2021-11-19 14:15:59,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 14:15:59,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3994 transitions. [2021-11-19 14:15:59,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-19 14:15:59,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:15:59,253 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 14:15:59,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:15:59,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:15:59,468 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:15:59,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:15:59,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1997599171, now seen corresponding path program 1 times [2021-11-19 14:15:59,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:15:59,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953259976] [2021-11-19 14:15:59,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:15:59,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:15:59,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:15:59,471 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:15:59,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:16:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:00,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:16:00,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:00,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:16:00,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:00,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:16:00,579 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:00,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953259976] [2021-11-19 14:16:00,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953259976] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:00,580 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:00,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:16:00,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631757768] [2021-11-19 14:16:00,580 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:00,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:16:00,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:00,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:16:00,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:16:00,582 INFO L87 Difference]: Start difference. First operand 2828 states and 3994 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-19 14:16:00,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:00,813 INFO L93 Difference]: Finished difference Result 5647 states and 8045 transitions. [2021-11-19 14:16:00,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:16:00,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 59 [2021-11-19 14:16:00,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:00,839 INFO L225 Difference]: With dead ends: 5647 [2021-11-19 14:16:00,839 INFO L226 Difference]: Without dead ends: 2830 [2021-11-19 14:16:00,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:16:00,865 INFO L933 BasicCegarLoop]: 3167 mSDtfsCounter, 0 mSDsluCounter, 3160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6327 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:00,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6327 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:16:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2830 states. [2021-11-19 14:16:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2830 to 2828. [2021-11-19 14:16:01,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2828 states, 1962 states have (on average 1.32059123343527) internal successors, (2591), 2022 states have internal predecessors, (2591), 696 states have call successors, (696), 172 states have call predecessors, (696), 169 states have return successors, (701), 675 states have call predecessors, (701), 687 states have call successors, (701) [2021-11-19 14:16:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 3988 transitions. [2021-11-19 14:16:01,142 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 3988 transitions. Word has length 59 [2021-11-19 14:16:01,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:01,144 INFO L470 AbstractCegarLoop]: Abstraction has 2828 states and 3988 transitions. [2021-11-19 14:16:01,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-19 14:16:01,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 3988 transitions. [2021-11-19 14:16:01,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 14:16:01,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:01,149 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 14:16:01,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:01,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:01,363 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:01,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:01,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1160460849, now seen corresponding path program 1 times [2021-11-19 14:16:01,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:01,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106894963] [2021-11-19 14:16:01,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:01,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:01,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:01,367 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:01,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:16:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:02,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:16:02,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:02,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:16:02,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:16:02,808 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:02,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106894963] [2021-11-19 14:16:02,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106894963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:02,808 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:02,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:16:02,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944226960] [2021-11-19 14:16:02,808 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:02,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:16:02,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:02,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:16:02,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:16:02,810 INFO L87 Difference]: Start difference. First operand 2828 states and 3988 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 14:16:04,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:16:05,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:05,095 INFO L93 Difference]: Finished difference Result 4642 states and 6495 transitions. [2021-11-19 14:16:05,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:16:05,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2021-11-19 14:16:05,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:05,116 INFO L225 Difference]: With dead ends: 4642 [2021-11-19 14:16:05,116 INFO L226 Difference]: Without dead ends: 2350 [2021-11-19 14:16:05,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:16:05,133 INFO L933 BasicCegarLoop]: 3066 mSDtfsCounter, 2146 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 4068 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:05,133 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2146 Valid, 4068 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 14:16:05,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2021-11-19 14:16:05,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2350. [2021-11-19 14:16:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2350 states, 1637 states have (on average 1.3091020158827122) internal successors, (2143), 1682 states have internal predecessors, (2143), 555 states have call successors, (555), 161 states have call predecessors, (555), 157 states have return successors, (542), 535 states have call predecessors, (542), 542 states have call successors, (542) [2021-11-19 14:16:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2350 states to 2350 states and 3240 transitions. [2021-11-19 14:16:05,306 INFO L78 Accepts]: Start accepts. Automaton has 2350 states and 3240 transitions. Word has length 65 [2021-11-19 14:16:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:05,307 INFO L470 AbstractCegarLoop]: Abstraction has 2350 states and 3240 transitions. [2021-11-19 14:16:05,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-19 14:16:05,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2350 states and 3240 transitions. [2021-11-19 14:16:05,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-19 14:16:05,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:05,312 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:16:05,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:05,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:05,529 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:05,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:05,530 INFO L85 PathProgramCache]: Analyzing trace with hash 904423170, now seen corresponding path program 1 times [2021-11-19 14:16:05,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:05,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584676630] [2021-11-19 14:16:05,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:05,531 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:05,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:05,533 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:05,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:16:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:16:06,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:16:06,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:16:06,500 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:16:06,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:16:06,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 14:16:06,993 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:16:06,993 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584676630] [2021-11-19 14:16:06,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584676630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:16:06,994 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:16:06,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:16:06,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659691377] [2021-11-19 14:16:06,994 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:16:06,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:16:06,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:16:06,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:16:06,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:16:06,996 INFO L87 Difference]: Start difference. First operand 2350 states and 3240 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-19 14:16:07,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:16:07,405 INFO L93 Difference]: Finished difference Result 2382 states and 3290 transitions. [2021-11-19 14:16:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:16:07,405 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) Word has length 65 [2021-11-19 14:16:07,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:16:07,426 INFO L225 Difference]: With dead ends: 2382 [2021-11-19 14:16:07,426 INFO L226 Difference]: Without dead ends: 2372 [2021-11-19 14:16:07,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:16:07,429 INFO L933 BasicCegarLoop]: 2567 mSDtfsCounter, 37 mSDsluCounter, 12819 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 15386 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:16:07,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 15386 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:16:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2021-11-19 14:16:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 2355. [2021-11-19 14:16:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 1641 states have (on average 1.3083485679463742) internal successors, (2147), 1686 states have internal predecessors, (2147), 555 states have call successors, (555), 161 states have call predecessors, (555), 158 states have return successors, (545), 536 states have call predecessors, (545), 542 states have call successors, (545) [2021-11-19 14:16:07,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 3247 transitions. [2021-11-19 14:16:07,607 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 3247 transitions. Word has length 65 [2021-11-19 14:16:07,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:16:07,607 INFO L470 AbstractCegarLoop]: Abstraction has 2355 states and 3247 transitions. [2021-11-19 14:16:07,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (7), 3 states have call predecessors, (7), 1 states have call successors, (7) [2021-11-19 14:16:07,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 3247 transitions. [2021-11-19 14:16:07,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-19 14:16:07,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:16:07,611 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:16:07,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:07,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:07,828 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:16:07,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:16:07,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1585041309, now seen corresponding path program 1 times [2021-11-19 14:16:07,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:16:07,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155812028] [2021-11-19 14:16:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:16:07,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:16:07,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:16:07,830 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:16:07,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:16:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:16:11,995 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:16:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:16:15,767 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-19 14:16:15,768 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:16:15,769 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:16:15,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:16:15,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:16:15,994 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:16:15,996 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:16:16,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:16:16 BoogieIcfgContainer [2021-11-19 14:16:16,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:16:16,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:16:16,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:16:16,141 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:16:16,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:15:41" (3/4) ... [2021-11-19 14:16:16,144 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:16:16,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:16:16,146 INFO L158 Benchmark]: Toolchain (without parser) took 100406.54ms. Allocated memory was 60.8MB in the beginning and 528.5MB in the end (delta: 467.7MB). Free memory was 38.1MB in the beginning and 158.9MB in the end (delta: -120.8MB). Peak memory consumption was 345.4MB. Max. memory is 16.1GB. [2021-11-19 14:16:16,146 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 42.2MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:16:16,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4214.35ms. Allocated memory was 60.8MB in the beginning and 163.6MB in the end (delta: 102.8MB). Free memory was 37.9MB in the beginning and 51.7MB in the end (delta: -13.8MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. [2021-11-19 14:16:16,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 354.03ms. Allocated memory is still 163.6MB. Free memory was 51.7MB in the beginning and 56.2MB in the end (delta: -4.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-11-19 14:16:16,148 INFO L158 Benchmark]: Boogie Preprocessor took 506.55ms. Allocated memory was 163.6MB in the beginning and 264.2MB in the end (delta: 100.7MB). Free memory was 56.2MB in the beginning and 154.9MB in the end (delta: -98.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2021-11-19 14:16:16,149 INFO L158 Benchmark]: RCFGBuilder took 60445.39ms. Allocated memory was 264.2MB in the beginning and 528.5MB in the end (delta: 264.2MB). Free memory was 154.9MB in the beginning and 320.3MB in the end (delta: -165.4MB). Peak memory consumption was 197.4MB. Max. memory is 16.1GB. [2021-11-19 14:16:16,149 INFO L158 Benchmark]: TraceAbstraction took 34875.65ms. Allocated memory is still 528.5MB. Free memory was 320.3MB in the beginning and 158.9MB in the end (delta: 161.4MB). Peak memory consumption was 160.4MB. Max. memory is 16.1GB. [2021-11-19 14:16:16,150 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 528.5MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:16:16,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory was 42.2MB in the beginning and 42.2MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4214.35ms. Allocated memory was 60.8MB in the beginning and 163.6MB in the end (delta: 102.8MB). Free memory was 37.9MB in the beginning and 51.7MB in the end (delta: -13.8MB). Peak memory consumption was 90.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 354.03ms. Allocated memory is still 163.6MB. Free memory was 51.7MB in the beginning and 56.2MB in the end (delta: -4.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 506.55ms. Allocated memory was 163.6MB in the beginning and 264.2MB in the end (delta: 100.7MB). Free memory was 56.2MB in the beginning and 154.9MB in the end (delta: -98.8MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * RCFGBuilder took 60445.39ms. Allocated memory was 264.2MB in the beginning and 528.5MB in the end (delta: 264.2MB). Free memory was 154.9MB in the beginning and 320.3MB in the end (delta: -165.4MB). Peak memory consumption was 197.4MB. Max. memory is 16.1GB. * TraceAbstraction took 34875.65ms. Allocated memory is still 528.5MB. Free memory was 320.3MB in the beginning and 158.9MB in the end (delta: 161.4MB). Peak memory consumption was 160.4MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 528.5MB. Free memory is still 158.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 10992]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 10595. Possible FailurePath: [L5971] static unsigned int vhost_zcopy_mask ; [L9348] static int experimental_zcopytx ; [L10590-L10593] static struct file_operations const vhost_net_fops = {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_net_ioctl, & vhost_net_compat_ioctl, 0, & vhost_net_open, 0, & vhost_net_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L10594-L10595] static struct miscdevice vhost_net_misc = {238, "vhost-net", & vhost_net_fops, {0, 0}, 0, 0, 0, (unsigned short)0}; [L10620] int LDV_IN_INTERRUPT ; [L11002] static int ldv_mutex_cred_guard_mutex ; [L11109] static int ldv_mutex_lock ; [L11216] static int ldv_mutex_mtx ; [L11323] static int ldv_mutex_mutex ; VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10623] struct inode *var_group1 ; [L10624] struct file *var_group2 ; [L10625] unsigned int var_vhost_net_ioctl_27_p1 ; [L10626] unsigned long var_vhost_net_ioctl_27_p2 ; [L10627] unsigned int var_vhost_net_compat_ioctl_28_p1 ; [L10628] unsigned long var_vhost_net_compat_ioctl_28_p2 ; [L10629] int res_vhost_net_open_13 ; [L10630] int ldv_s_vhost_net_fops_file_operations ; [L10631] int tmp ; [L10632] int tmp___0 ; [L10633] int tmp___1 ; [L10635] ldv_s_vhost_net_fops_file_operations = 0 [L10636] LDV_IN_INTERRUPT = 1 [L10637] CALL ldv_initialize() [L11433] ldv_mutex_cred_guard_mutex = 1 [L11434] ldv_mutex_lock = 1 [L11435] ldv_mutex_mtx = 1 [L11436] ldv_mutex_mutex = 1 VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10637] RET ldv_initialize() [L10638] FCALL ldv_handler_precall() VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10639] CALL, EXPR vhost_net_init() [L10598] int tmp ; VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10600] COND FALSE !(experimental_zcopytx != 0) VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10604] CALL, EXPR misc_register(& vhost_net_misc) [L11595] return __VERIFIER_nondet_int(); [L10604] RET, EXPR misc_register(& vhost_net_misc) [L10604] tmp = misc_register(& vhost_net_misc) [L10605] return (tmp); VAL [\result=0, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, tmp=0, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10639] RET, EXPR vhost_net_init() [L10639] tmp = vhost_net_init() [L10640] COND FALSE !(tmp != 0) VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10682] tmp___1 = __VERIFIER_nondet_int() [L10683] COND TRUE tmp___1 != 0 || ldv_s_vhost_net_fops_file_operations != 0 VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___1=2147483648, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10646] tmp___0 = __VERIFIER_nondet_int() [L10648] case 0: [L10661] case 1: [L10669] case 2: [L10673] case 3: VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=3, tmp___1=2147483648, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10674] FCALL ldv_handler_precall() VAL [__this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_s_vhost_net_fops_file_operations=0, tmp=0, tmp___0=3, tmp___1=2147483648, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10675] CALL vhost_net_compat_ioctl(var_group2, var_vhost_net_compat_ioctl_28_p1, var_vhost_net_compat_ioctl_28_p2) [L10582] void *tmp ; [L10583] long tmp___0 ; [L10585] CALL, EXPR compat_ptr((compat_uptr_t )arg) [L9300] return ((void *)((unsigned long )uptr)); VAL [\old(uptr)=0, \result={0:0}, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, uptr=0, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10585] RET, EXPR compat_ptr((compat_uptr_t )arg) [L10585] tmp = compat_ptr((compat_uptr_t )arg) [L10586] CALL vhost_net_ioctl(f, ioctl, (unsigned long )tmp) VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10521] struct vhost_net *n ; [L10522] void *argp ; [L10523] u64 *featurep ; [L10524] struct vhost_vring_file backend ; [L10525] u64 features ; [L10526] int r ; [L10527] unsigned long tmp ; [L10528] long tmp___0 ; [L10529] int tmp___1 ; [L10530] unsigned long tmp___2 ; [L10531] int tmp___3 ; [L10532] long tmp___4 ; [L10533] long tmp___5 ; [L10535] EXPR f->private_data [L10535] n = (struct vhost_net *)f->private_data [L10536] argp = (void *)arg [L10537] featurep = (u64 *)argp [L10539] case 1074310960U: [L10547] case 2148052736U: [L10555] case 1074310912U: [L10567] case 44802U: [L10568] CALL vhost_net_reset_owner(n) [L10445] struct socket *tx_sock ; [L10446] struct socket *rx_sock ; [L10447] long err ; [L10449] tx_sock = 0 [L10450] rx_sock = 0 [L10451] CALL ldv_mutex_lock_66(& n->dev.mutex) [L10919] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={2251799813687296:70368745226512}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L11361] COND TRUE ldv_mutex_mutex == 1 VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, lock={2251799813687296:70368745226512}, lock={2251799813687296:70368745226512}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L11365] ldv_mutex_mutex = 2 VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={2251799813687296:70368745226512}, lock={2251799813687296:70368745226512}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10919] RET ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, ldv_func_arg1={2251799813687296:70368745226512}, ldv_func_arg1={2251799813687296:70368745226512}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10920] FCALL mutex_lock(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, ldv_func_arg1={2251799813687296:70368745226512}, ldv_func_arg1={2251799813687296:70368745226512}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10451] RET ldv_mutex_lock_66(& n->dev.mutex) [L10452] CALL, EXPR vhost_dev_check_owner(& n->dev) VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2251799813687296:70368745226496}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L6410] struct task_struct *tmp ; VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2251799813687296:70368745226496}, dev={2251799813687296:70368745226496}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L6412] CALL, EXPR get_current() VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L5283] struct task_struct *pfo_ret__ ; [L5286] case 1UL: [L5289] case 2UL: [L5292] case 4UL: [L5295] case 8UL: VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L5302] return (pfo_ret__); VAL [\old(ldv_mutex_mutex)=1, \result={16:0}, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, pfo_ret__={16:0}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L6412] RET, EXPR get_current() VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2251799813687296:70368745226496}, dev={2251799813687296:70368745226496}, experimental_zcopytx=0, get_current()={16:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L6412] tmp = get_current() [L6413] EXPR dev->mm [L6413] EXPR tmp->mm VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2251799813687296:70368745226496}, dev={2251799813687296:70368745226496}, dev->mm={18014398509481984:-17996806323437550}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, tmp={16:0}, tmp->mm={0:17592186044434}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L6413] EXPR (unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L VAL [(unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L=0, \old(ldv_mutex_mutex)=1, __this_module={0:0}, dev={2251799813687296:70368745226496}, dev={2251799813687296:70368745226496}, dev->mm={18014398509481984:-17996806323437550}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, tmp={16:0}, tmp->mm={0:17592186044434}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L6413] return ((unsigned long )dev->mm == (unsigned long )tmp->mm ? 0L : -1L); [L10452] RET, EXPR vhost_dev_check_owner(& n->dev) VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={2251799813687296:70368745226496}, n={2251799813687296:70368745226496}, rx_sock={-4611686018427387853:0}, tx_sock={253:0}, vhost_dev_check_owner(& n->dev)=0, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10452] err = vhost_dev_check_owner(& n->dev) [L10453] COND FALSE !(err != 0L) VAL [\old(ldv_mutex_mutex)=1, __this_module={0:0}, err=0, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={2251799813687296:70368745226496}, n={2251799813687296:70368745226496}, rx_sock={-4611686018427387853:0}, tx_sock={253:0}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10457] CALL vhost_net_stop(n, & tx_sock, & rx_sock) VAL [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={2251799813687296:70368745226496}, rx_sock={-4611686018427387853:0}, tx_sock={253:0}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10183] CALL vhost_net_stop_vq(n, (struct vhost_virtqueue *)(& n->vqs) + 1UL) VAL [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, n={2251799813687296:70368745226496}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0, vq={2251799813687296:70368745243912}] [L10155] struct socket *sock ; [L10156] bool __warned ; [L10157] int tmp ; [L10158] int tmp___0 ; [L10160] CALL ldv_mutex_lock_56(& vq->mutex) [L10839] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={2251799813687296:70368745243920}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L11361] COND FALSE !(ldv_mutex_mutex == 1) VAL [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, lock={2251799813687296:70368745243920}, lock={2251799813687296:70368745243920}, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L11363] CALL ldv_error() VAL [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] [L10992] reach_error() VAL [\old(ldv_mutex_mutex)=2, __this_module={0:0}, experimental_zcopytx=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, vhost_net_fops={245:0}, vhost_net_misc={-9223372036854775793:0}, vhost_zcopy_mask=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 105 procedures, 2218 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.7s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5 mSolverCounterUnknown, 13015 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12988 mSDsluCounter, 51099 SdHoareTripleChecker+Invalid, 10.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25957 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 25142 mSDtfsCounter, 77 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 612 GetRequests, 596 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2828occurred in iteration=5, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 382 NumberOfCodeBlocks, 382 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 999 SizeOfPredicates, 1 NumberOfNonLiveVariables, 5038 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 20/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-19 14:16:16,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08416c62-b463-404e-b8b3-bd8204f4a5a2/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample